Gm Service Bulletin 18 Na 355Tighten Torque the plug to 9Y(80 lb in). Then hard shift return at 5 and 18 mph. Dealing with Technical Service Bulletins (TSB) after Warranty">Dealing with Technical Service Bulletins (TSB) after Warranty. 0T transmission “shudders”. A8 Trans New TSB dated March 2019. Important: This is not a warranty concern but an option and any action taken would be a customer pay event. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the “torque converter clutch (TCC) shudder conditions. GM has fixed 2015/16 transmission. The GM technical service bulletin (TSB) is 18-NA-355 for this procedure effecting 8-speed Colorado and Canyon trucks from SOP {Start Of Production} in 2017, through March 1, 2019 for trucks with a S or T as the 5th digit of the VIN. 18-NA-355 and 19-NA-121 have been updated effective July 9, 2019 to eliminate the diagnostics portion within the TSB's and the labor times have been updated to reflect the removal of the diagnostic procedures. TSB 18-NA-355 is the one you want, but it also states to not replace the torque converter. Has the TSB 18-NA-355 Transmission Fluid Exchange fix your transmission shutter issues. 2nd Generation Chevrolet Colorado and GMC Canyon 2nd Gen Engines and Technical Discussion Did the TSB 18-NA-355 Transmission fluid exchange fix the shutter issue Yes, it fixed it the shutter Votes: 39 90. 2017 CT6 Transmission issues TSB info needed. replace the engine assembly. Shudder TSB 18-NA-355 has been updated 7/19 92402 Views 354 Replies 83 Participants Last post by DieselDrax , Sep 26, 2022 B BevyofChevys Discussion Starter · Jul 29, 2019 I just caught wind of a very important update to the transmission shudder TSB. 18-NA-355 and 19-NA-121 have been updated effective July 9, 2019 to eliminate the diagnostics portion within the TSB's and the labor times have been updated. [ARCHIVED THREAD] - 2017 Yukon XL: Transmission shudder/shake and Technical Service Bulletin 18-NA-355 Posted: 8/17/2022 2:56:54 PM EDT Wife's 2017 Yukon XL Denali, 65K miles, in the past 10 days or so has demonstrated the shudder/shake coming from the transmission, esp at low to moderate speeds and its been getting worse. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". If you drive a newer model GMC or Chevrolet like the ones listed below you might want to consider having this flush performed to your transmission before you have to replace. TSB's are simply guidance documents to assist service personnel in quickly diagnosing and repairing previously identified issues. The pan gets dropped three times. BULLETINS TECHNICAL #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) Document Preview Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed. : Date: 18-NA-355 August, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Page 18 April, 2023 Bulletin No. : 22-NA-096 How to connect to Apple CarPlay A. When my A8 (in my Corvette as my ATS-V is too new to have it yet) shudders it feels like I am running over 1" x 1" wood pieces laid perpendicular to my direction of travel and spaced about 2 feet apart. General Motors has published multiple technical service bulletins fluid revisions, GM's latest solution (TSB 18-NA-355) is lengthy, . 18-NA-355 TSB (Technical Service Bulletin) which I think is for the transmission fluid flush, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. Condition: may be described as driving over low rumble strips or Highway with rough . The lawsuit names the following vehicles equipped with either a GM 8L90 or GM 8L45 transmission. TSB #18 NA 355 was modified on March 1, 2019 (Version 2). (Tsb 18-NA-355) Took my 2018 Colorado WT in for the flush at the Chevy service center I get all my routine work done at. Transmission issues: Consumer Reports rates the transmission reliability 'below average' for all model years of this generation of the Sierra/Silverado 1500. Shudder TSB 18-NA-355 has been updated 7/19 92402 Views 354 Replies 83 Participants Last post by DieselDrax , Sep 26, 2022 B BevyofChevys Discussion Starter · Jul 29, 2019 I just caught wind of a very important update to the transmission shudder TSB. New bulletin was JUST released by GM. : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Technical Service Bulletins of the 2019 Chevrolet Corvette. 18-NA-177 Chevrolet Technical Service Bulletin. There have been 147 technical service bulletins issued for the 2019 Chevrolet Corvette. (Tsb 18-NA-355) Took my 2018 Colorado WT in for the flush at the Chevy service center I get all my routine work done at. Got the transmission service done last fall by the dealership at approx 71,000 km's. The big test will be towing, assuming it's even worth getting the trailer out of. A revised service procedure will be released in Q1 of 2019. : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020). Version 2 the only change from Version 1 is in the box at the bottom of this:. With that said I was able to get mine replaced with the fluid/flush. GM Transmission Problems">TSB Seems To Fix 8. Service Bulletin Bulletin No. Remove the DT-51190 fluid fill adapter fromDT-45096-31 hose. GMC Canyon Power Train Problems">17 Complaints: 2018 GMC Canyon Power Train Problems. Now I can only find Service Bulletin 18-NA-355. GM has sent technical service bulletins to dealerships, which plaintiffs say are an indication the automaker has known about the defects since at least 2015. GM 8 Speed Transmission Problems? What You Need to Do Now. General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. Vehicles presented with suspected shudder within the published build dates should have the prescribed fluid exchange procedure performed. GMC Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019 Canyon 2018-2019 Canyon All Terrain 2017-2019 Canyon Denali 2017-2019 Canyon SL 2017-2019 Canyon SLE 2017-2019 Canyon SLT 2015-2018 Sierra 1500 2015-2018 Sierra 1500 Denali. Shudder TSB 18-NA-355 has been updated 7/19 | Chevy Colorado & GMC Canyon Home Forums 2nd Generation Chevrolet Colorado and GMC Canyon 2nd Gen Engines and Technical Discussion. Service Bulletins - Service. Chevrolet TSB 18-NA-355 Make: Chevrolet Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019Camaro LS 2016-2019Camaro LT 2016-2019Camaro SS 2017-2019Camaro ZL1 2017-2019Colorado 2017-2019Colorado LT 2017-2019Colorado WT. TSB #18 NA 355 was modified on March 1, 2019 (Version 2). : Date: 18-NA-355 August, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Bulletin No. TSB 18-NA-355 is the one you want, but it also states to not replace the torque converter. it now shifts like you would expect it to without hesitation, responsive downshifting, and quick acceleration when desired. Long story short, GM needs to do away with the 8-speed and replace it with the much-improved 10-speed automatic … and quick. The big test will be towing, assuming it's even worth getting the trailer. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the “torque converter clutch (TCC) shudder conditions. 7% No, it did not fix the shutter Votes: 4 9. the production 18" spare to provide the correct circumference tire to work properly with the ABS and stability system. This problem currently affects 11 different models across 3 different OEM brands for the model years between 2015 and 2019. (Tsb 18-NA-355) Took my 2018 Colorado WT in for the flush at the Chevy service center I get all my routine work done at. This modified fluid was first offered in GM Technical Service Bulletin 18-NA-355 in December 2018, with the goal of decreasing torque converter clutch shudders in the GM 8L90 and 8L45 automatic transmissions after a full system clean. GMC Canyon Automatic Transmission Torque Converter Problems. Note: a copy of the GM service bulletin 18-NA-355 can be found online. ” The problem was identified by many customers who reported the transmission shuddering frequently and shifting harshly between first and second gear. 18-NA-355 and 19-NA-121 have been updated effective July 9, 2019 to eliminate the diagnostics portion within the TSB's and the labor times have been updated to reflect the removal of the diagnostic procedures. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic. : 18-NA-383 March, 2023 Page 7 Version 13 Modified Released January 03, 2019 Revised February 01, 2019– Added Important to Correction to Verify Failure. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. TSB 18-NA-355 is the one you want, but it also states to not replace the torque converter. 1 2019 Chevrolet Corvette engine and engine cooling TSB (Bulletin 21-NA-124) 2 2019 Chevrolet Corvette engine and engine cooling TSB (Bulletin 18-NA-073) 3 2019 Chevrolet Corvette engine and engine cooling TSB (Bulletin 16-NA-338). Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. 2015 Chevrolet Silverado 2016 Chevrolet Silverado 2017 Chevrolet Silverado. This bulletin is found in the CT6 Service Manual (Europe, Korea, N America, Other IO). It should make it to the dealers soon, if it hasn't already, in addition to the new Mobil 1 ATF formula. pdf (this is the one with Corvette specific procedure, pg 25) TSB #18 NA 355 was modified on March 1, 2019 (Version 2). Affected vehicles include Chevrolet, GMC and Cadillac vehicles, as follows. BULLETINS TECHNICAL #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) Document Preview Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. Bulletin Title:#18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) Bulletin Type:Technical Applies To:Automatic Transmission / Transmission Cooling Applicable Vehicles 2019 GMC Canyon Pickup - 4WD 2019 GMC Canyon Pickup - 2WD 2019 Chevrolet Corvette. The latest revision of the TSB (August 2019 revision 18-NA-355) calls for an entirely new fluid that does NOT absorb water. The GMNA-9986555 is a new required fluid for the “Dexron Approved” Mobil 1 Synthetic LV ATF HP. If a problem is addressed by a TSB and the vehicle is still under warranty, it is repaired free of charge to the owner. It is quite noticeable and unmistakeable. A8 Transmission Shudder Service Bulletin. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the “torque converter clutch (TCC) shudder conditions. A copy the GM service bulletin 18-NA-355 can be seen online. Service Bulletin Bulletin No. Local Transmission Shop to the Rescue! The problem with the 8L90 and 8L45 transmissions is certainly not unique, and really points out the importance of using the right transmission fluid!. 18-NA-355 GMC Technical Service Bulletin GMC TSB 18-NA-355 Make: GMC Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic. Reply Save Like DioCadi2017 Discussion Starter · #3 · Oct 26, 2019. Service BulletinBulletin No. PDF Service Bulletin Bulletin No. Can anyone help me find the exact one that lists the 2017 with the 6 speed trans? Thanks! //Brew Click to expand haven't heard of one for the 6spd only the 8spd if you are having issue's with a 6l80e then it's probably the torque converter. TSB 18-NA-355 Transmission Fluid Exchange success ?. : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Version 2 the only change from Version 1 is in the box at the bottom of this: Semper Fidelis, Kevin Registered Joined Aug 30, 2015 183 Posts #6 · May 29, 2019 My car is currently at the dealership. To be clear, morally, with the. When using cruise control when reducing speed transmission would shudder. : PIP-5168-C Component (s): ENGINE. They are written to inform these. If you drive a newer model GMC or Chevrolet like the ones listed below you might want to consider having this flush performed to your transmission before you have to replace. #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020). : Date: 18-NA-355 April, 2020 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Transmission shudder: please school me. Plug in the new jumper harness and new module in the kit. Revised March 22, 2019– Added Breakpoint and Revised Correction Important. Dealing with Technical Service Bulletins (TSB) after Warranty. For example, if an engine is covered for 60,000 miles, but the particular engine has experienced numerous blown head gaskets, the manufacturer could extend the warranty to 80,000. Home Bulletins Contact VIEW ALL BULLETINS Bulletin Information. Version 2 the only change from Version 1 is in the box at the bottom of this: See more 3 Reply Save Like Kevin · #6 · May 29, 2019 My car is currently at the dealership. ATI Performance Is Beefing Up GM’s 8L90. The whole process took about 2 hours. BULLETINS TECHNICAL #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) Document Preview Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed. Important: Do NOT replace the torque converter or transmission assembly for this condition. Remove the 4 bolts holding the module in place. Wireless Charging Upgraded Kit. : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. E emperors6 Registered 2013 CTS-V A6 Black Diamond Sedan Joined Oct 16, 2013 89 Posts. So long as you've demonstrated there's a problem report/service history for this particular issue and is documented in the dealers/GM's system, then your TSB related issue should be done pro-bono. Refer to the bulletin for additional information, including required shudder test conditions for each vehicle being diagnosed as well as the fluid exchange procedures. If the valve(s) are not moving, replace the. If TCC shudder is present, a vibration peak will appear within +/- 2 Hz of the frequency listed in Bulletin #18-NA-355. August, 2018 Bulletin No. : 18-NA-355 August, 2019 Page 3 Service Procedure Initial TransFlow Flush Machine Setup Important: The prepping procedure only needs to be completed if the. With very hard shifts at 5 and 18 mph. 18-NA-355 TSB (Technical Service Bulletin) which I think is for the transmission fluid flush, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. Mexico and Export Regions should follow. Select the appropriate transmission. 2nd Generation Chevrolet Colorado and GMC Canyon 2nd Gen Engines and Technical Discussion Did the TSB 18-NA-355 Transmission fluid exchange fix the shutter issue Yes, it fixed it the shutter Votes: 39 90. Home Chevrolet18-NA-091 Chevrolet TSB 18-NA-091 Make: Chevrolet Number: 18-NA-091 Date: 3/23/2018 Title: Slight Shudder Felt During Gear Shift at Slow Speeds Below 64 km/h (40 mp/h) with Light Throttle Application Models:. With very hard shifts at 5 and 18 mph. Important: Service agents must comply with allInternational, Federal, State, Provincial, and/orLocal laws applicable to the activities it performsunder this bulletin, including but not limited tohandling, deploying, preparing, classifying,packaging, marking, labeling, and shippingdangerous goods. 41 filed 09/30/19 PageID. There was no change to the actual process to conduct the fluid exchange from Version 1. procedures outlined in TSB 18-NA-355. New bulletin was JUST released by GM. GM refers to it as SERVICE BULLETIN 18-NA-355. Vehicles presented with suspected shudder within the published build dates should have the prescribed fluid exchange procedure. General Motors Eight Speed Transmission Suit. To obtain information for your local retail location, please call 3M at 1-888-364-3577. 18-NA-355 and 19-NA-121 have been updated effective July 9, 2019 to eliminate the diagnostics portion within the TSB's and the labor times have been updated to reflect the removal of the diagnostic procedures. They are not related to a vehicle's warranty. The dreaded torque converter Shudder. Service Bulletins - Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. Technical Service Bulletins. General Discussion Had New TSB #18-NA-355 (A8 Shudder) Done 7618 Views 2 Replies 2 Participants Last post by SgtMajUSMC (Retired) , Feb 19, 2019 SgtMajUSMC (Retired) Discussion Starter · Feb 19, 2019 FYI, if paying out of pocket for this it is 3 hours of labor versus the 1. View attachment TSB # 18-NA-355 Part 2. #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020). GMC TSB 18-NA-355 Make: GMC Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019 Canyon; 2018-2019 Canyon All Terrain; 2017-2019 Canyon Denali; 2017-2019 Canyon SL; 2017-2019 Canyon SLE; 2017-2019 Canyon SLT; 2015-2018 Sierra. : Date: 18-NA-177 February, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Important: Follow the service procedures outlined in TSB 18-NA-355. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90” eight-speed automatic transmissions, RPO codes M5N, M5T, M5U, and M5X. Refer to Service Bulletin # 18-NA-073: Repair Guidelines for Engine Component Wear. Service Bulletin Date: March, 2023">Service Bulletin Date: March, 2023. It should make it to the dealers soon, if it hasn't already, in addition to the new Mobil 1 ATF. Service Bulletin Date: March, 2023. 2017 Yukon XL: Transmission shudder/shake and Technical. The GM technical service bulletin (TSB) is 18-NA-355 for this procedure effecting 8-speed Colorado and Canyon trucks from SOP {Start Of Production} in 2017, through March 1, 2019 for trucks with a S or T as the 5th digit of the VIN. Note: a copy of the GM service bulletin 18-NA-355 can be found online. Contact Wurth though website www. GM evidently doesn’t reimburse dealers for full labor time on warranty work; hence the 1. Service Bulletin ">A8 Transmission Shudder Service Bulletin. ON GOING SUMMARY OF TSBs BY MODEL YEAR C7 & C8">ON GOING SUMMARY OF TSBs BY MODEL YEAR C7 & C8. Bulletin Title:#18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) Bulletin Type:Technical Applies To:Automatic Transmission / Transmission Cooling Applicable Vehicles 2019 GMC Canyon Pickup - 4WD 2019 GMC Canyon Pickup - 2WD 2019 Chevrolet Corvette. Automatic Transmission Torque Converter Problems">GMC Canyon Automatic Transmission Torque Converter Problems. Home Chevrolet18-NA-177 Chevrolet TSB 18-NA-177 Make: Chevrolet Number: 18-NA-177 Date: 6/5/2018 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2018 Colorado;. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic. During decelerations there would be a shudder. Refer to Service Bulletin# 18-NA-073: Repair Guidelines for EngineComponent Wear. GM 8L90 / 8L45 Transmission Class Action Lawsuit. Service Bulletin Bulletin No. GM has attempted to correct the shudder on the 8 speed GM transmission by doing . After implementing several fluid revisions, GM’s latest solution (TSB 18-NA-355) is lengthy, complicated and expensive. Using care, remove DT-45096-31/DT-51190 as anassembly. Note: a copy of the GM service bulletin 18-NA-355 can be found online. Now, about 7000 km's (approx 4500 miles) later, my 2017 Colorado still shifts very smooth. Note: Required tool kit DT-52263 is shipping fromBosch. 18-NA-355 Chevrolet Technical Service Bulletin HomeChevrolet18-NA-355 Chevrolet TSB 18-NA-355 Make: Chevrolet Number: 18-NA-355 Date: 1/17/2019 Title:. " The problem was identified by many customers who reported the transmission shuddering frequently and shifting harshly between first and second gear. GM within the past couple weeks has an update to fix the chuggle, delay downshifting, whatever you want to call it with service bulletin 18-NA -14. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". In January 2019, GM issued TSB 18-NA-355 entitled, “ Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed. Remove the compartment liner (just pulls out) 3. The GMNA-9986555 is a new required fluid for the “Dexron Approved” Mobil 1 Synthetic LV ATF HP. materials. ATI Performance Is Beefing Up GM's 8L90. Disconnect the DT-45096 TransFlow feed (supply)line from DT-45096-31 TransFlow adapter. *PE Service Bulletin No. Apparently, as of July 9th, the TSB has been revised to no longer require diagnostic procedures. In January 2019, GM issued TSB 18-NA-355 entitled, “ Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed. Dec 2, 2022 #3 OP B Brewder Member Joined Apr 21, 2022. General Motors' Technical Service Bulletin (TSB 15285C) could be the answer you've been looking for regarding excessive oil consumption. Wife's 2017 Yukon XL Denali, 65K miles, in the past 10 days or so has demonstrated the shudder/shake coming from the transmission, esp at low to moderate speeds and its been getting worse. Note: a copy of the GM service bulletin 18-NA-355 can be found online. [ARCHIVED THREAD] - 2017 Yukon XL: Transmission shudder/shake and Technical Service Bulletin 18-NA-355 Posted: 8/17/2022 2:56:54 PM EDT Wife's 2017 Yukon XL Denali, 65K miles, in the past 10 days or so has demonstrated the shudder/shake coming from the transmission, esp at low to moderate speeds and its been getting worse. Important: Do NOT replace the torque converter or transmission assembly for this condition. The Kit includes: • DT-52263-1 Block Assembly (with 10 foot long fluid drain hose and spring clamp). Had improvement in shift for a while. : 15-06-01-002O March, 2023 Page 3 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". TSB #18 NA 355 was modified on March 1, 2019 (Version 2). GM has issued 13 technical service bulletins related to shifting issues alone, but “none of the suggested repairs have remedied the problem,” the lawsuit says. General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. Service Bulletin Bulletin No. According to the GM Technical Service Bulletin: 92-7-2 issued Oct-2-1991, DEXRON-II (E) has better anti-foaming characteristics, improved low-temperature flow characteristics (low-temperature viscosity), and. Following the lawsuit, Here is the tsb Bulletin #18-NA-355. Technical Bulletin - #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) - For 2017 Cadillac CT6. , Canada and Middle EastOperations (MEO). : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. Refer to Service Bulletin # 18-NA-073: Repair Guidelines for Engine Note: Refer to Service Bulletin # 20-NA-038 for additional information on AFM and DFM usage. : 18-NA-355 Date: March, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128. DEXRON II Transmission Fluid Equivalent. GM 8L90 and 8L45 Transmission Problems Cause Lawsuit. : 18-NA-355 Date: April, 2020 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128. Got the transmission service done last fall by the dealership at approx 71,000 km's. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the "torque converter clutch (TCC) shudder conditions. Click to expand TSB's are simply guidance documents to assist service personnel in quickly diagnosing and repairing previously identified issues. Shudder TSB 18-NA-355 has been updated 7/19 92402 Views 354 Replies 83 Participants Last post by DieselDrax , Sep 26, 2022 B BevyofChevys Discussion Starter · Jul 29, 2019 I just caught wind of a very important update to the transmission shudder TSB. Parts Information Important: Purchase of Tire Placard Label Insert P/N 19206430 required to record spare tire size and. For the 8-speed transmission, GM recommends changing the transmission fluid, see the bulletin 18-NA-355 (link below). Long story short, GM needs to do away with the 8-speed and replace it with the much-improved 10-speed automatic … and quick. Furthermore, we just learned of a GM service bulletin, 18-na-355 dated August, 2019, that has been circulating. Transmission flush fixed the shudder. Actually 18-NA-355 as it came out in early December of 2018. It was all covered under warranty as I only have 18,900 miles on it. Took it into dealer today and they said they are going to do a transmission fluid flush and reset adaptive driving memory. , Canada and Middle East Operations (MEO). Local Transmission Shop to the Rescue! The problem with the 8L90 and 8L45 transmissions is certainly not unique, and really. For further information and the fluid exchange procedure, refer to GM corporate Technical Service Bulletin (TSB) 18-NA-355, available in Service Information. 18-NA-355 and 19-NA-121 have been updated effective July 9, 2019 to eliminate the diagnostics portion within the TSB's and the labor times have been updated to reflect the removal of the diagnostic procedures. Dealer complied with bulletin 18-na-355. Technical Bulletin - #18-NA-355 - Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed - (Mar 30, 2020) - For. For its part, GM has filed 13 technical service bulletins concerning the unit, none of which remedied the issue. Hide Search forAll of these wordsThis exact phraseAny of these words Filter by. Chevrolet 2015 – 2018 Chevrolet Silverado 1500. Start vehicle and enjoy wireless charging! Sent from my SM-G930R4 using Tapatalk Reply Save Like 1. GM “Shuddering” Lawsuit Alleges 8-Speed Transmission, Furthermore, we just learned of a GM service bulletin, 18-NA-355 dated August, . shudder problem 2020 v6 colorado. Service Bulletin Bulletin No. 11 2 comments Best Add a Comment. Runs smooth now, and the shifting is like night and day. : 18-NA-383 Date: March, 2023 18-NA-383 Involved Region or Country North America, Europe, Middle East, Iraq, Israel, Palestine, Argentina, Brazil, Bolivia, GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". 2017 Yukon XL: Transmission shudder/shake and Technical Service. The lawsuit also claims GM's. This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 km/h (25 and 80 mph) at a steady state. It was all covered under warranty as I only have 18,900. : PI-1235 Component (s): ELECTRICAL SYSTEM NHTSA ID Number: 10056237 SUMMARY: GENERAL MOTORS: DUE TO LOOSE GROUND TERMINAL CONNECTIONS, IN SOME VEHICLES AND TRUCKS EXPERIENCE, ACCESSORIES MALFUNCTIONS, DIC MESSAGES, IPC WARNING INDICATORS, SES LIGHT ON. There is a Technical Service Bulletin calling for a flush of the transmission and torque converter, and replacement with a specially formulated synthetic transmission fluid. 3% Total voters 43 Poll closed Apr 27, 2020. I had the same shudder in my 2016 CTS, and thankfully, this fix worked. Step 1: Cooler Flush, Drain, Clean pan/magnet, Replace Filter (If needed), Oil Fill, & Circulate New Fluid Note: The Transmission Fluid Cooler Flow Test and Flushing procedure can be located by building the vehicle in SI, select Transmission, Transmission Cooling, Diagnostic Information and Procedures. I heard some dealers are already getting the new Mobil 1 ATF formula as we speak. Service Bulletins - Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. 6 hrs in the bulletin vs 3 if paying out of pocket. 18-NA-091 Chevrolet Technical Service Bulletin. Apple CarPlay is available through Wi-Fi and Bluetooth or tethered (corded) 6058815 B. Service Bulletin Bulletin No. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the “torque converter clutch (TCC) shudder conditions. Glad the flush fixed the issue. We found a copy of the torque converter clutch sb and it applies to all GMC Canyons. It is not a "did you feel that?" thing. Once phone is paired to vehicle, the notification below will pop up. Have they done the trans fluid flush that is called for in TSB 18. Recalls, TSBs, and Campaigns: Free or Do You Have to Pay?. +/- 2 Hz of the frequency listed in Bulletin #18-NA-355. Click Allow or Deny depending on your preference for your Google experience. It took every bit of those 3 hours. Chevrolet TSB 18-NA-355 Make: Chevrolet Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019Camaro LS 2016-2019Camaro LT 2016-2019Camaro SS 2017-2019Camaro ZL1 2017-2019Colorado 2017-2019Colorado LT 2017-2019Colorado WT. ” The problem was identified by many customers who. In my case the dealer saw the metal shavings in the fluid from the torque converter clutches, so they told GM, and they said to go ahead and replace it. Actually 18-NA-355 as it came out in early December of 2018. GM 8L90 and 8L45 Transmission Problems Cause Lawsuit">GM 8L90 and 8L45 Transmission Problems Cause Lawsuit. On or around June 2, 2016, GM issued Service Bulletin PIP5405 with. Special service campaigns are a form of Technical Service Bulletin where a manufacturer will inform dealers of warranty extensions for particular repairs. Posted: 8/17/2022 2:56:54 PM EDT. If the valve(s) are not moving, replace the valve lifter oil manifold and affected bank of AFM lifters. Has the TSB 18-NA-355 Transmission Fluid Exchange fix your transmission shutter issues. GMC Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019 Canyon 2018-2019 Canyon All Terrain 2017-2019 Canyon Denali 2017-2019 Canyon SL 2017-2019 Canyon SLE 2017-2019 Canyon SLT 2015-2018 Sierra 1500 2015-2018 Sierra 1500 Denali. I kind of don't even want to know how much the dealer would want, and yeah I know GM should pay for it but that's not going to happen unless . : 18-NA-091 Warranty Information For vehicles repaired under the Emission coverage,use the following labor operation. If SI diagnosis does not isolate the cause of thisconcern, technicians should inspect for valve operation. Trans shudder SB for 2017. Chevy and GMC dealers were told in previous technical service bulletins to install updated engine control module calibration and perform an oil consumption test. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses "torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 " eight-speed automatic. In my case the dealer saw the metal shavings in the fluid from the torque converter clutches, so they told GM, and they said to go ahead and replace it. Reference theApplicable Warranties section of Investigate VehicleHistory (IVH) for coverage information. : Date: 18-NA-355 April, 2020 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. The GM technical service bulletin (TSB) is 18-NA-355 for this procedure effecting 8-speed Colorado and Canyon trucks from SOP {Start Of Production} in 2017, through March 1, 2019 for trucks with a S or T as the 5th digit of the VIN. General Motors does not endorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be available from other sources. General Discussion Had New TSB #18-NA-355 (A8 Shudder) Done 7618 Views 2 Replies 2 Participants Last post by SgtMajUSMC (Retired) , Feb 19, 2019 SgtMajUSMC (Retired) Discussion Starter · Feb 19, 2019 FYI, if paying out of pocket for this it is 3 hours of labor versus the 1. Chevrolet TSB 18-NA-355 Make: Chevrolet Number: 18-NA-355 Date: 1/17/2019 Title: Shake And/Or Shudder During Light Throttle Acceleration Between 25 And 80 Mph (40 And 128 Km/H) At Steady Speed Models: 2017-2019Camaro LS 2016-2019Camaro LT 2016-2019Camaro SS 2017-2019Camaro ZL1 2017-2019Colorado 2017-2019Colorado LT 2017-2019Colorado WT. The New GM TSB number is: 18-NA-355. New GM TSB 18-NA-355 to address transmission shudder has been released 38907 Views 58 Replies 30 Participants Last post by GMC_Mike , Feb 10, 2020 GM-4-LIFE Discussion Starter · Dec 13, 2018 New bulletin was JUST released by GM. If TCC shudder is present, a vibration peak will appear within +/- 2 Hz of the frequency listed in Bulletin #18-NA-355. done the trans fluid flush that is called for in TSB 18-NA-355? 2019/08/tsb-seems-to-fix-8-speed-automatic-gm-transmission-problems/. GM has sent technical service bulletins to dealerships, which plaintiffs say are an indication the automaker has known about the defects since at least 2015. In fact, GM was recently slapped with a class action lawsuit over. They are written to inform thesetechnicians of conditions that may occur on some vehicles, or to provide information that could assist in the properservice of a vehicle. If SI diagnosis does not isolate the cause of this concern, technicians should inspect for valve operation. Important: Service agents must comply with allInternational, Federal, State, Provincial, and/orLocal laws applicable to the activities it performsunder this bulletin, including but not limited tohandling, deploying, preparing, classifying,packaging, marking, labeling, and shippingdangerous goods. Remove the module from the console, unplug it 5. Engineer reviews have proven that replacing the torque converter does not provide a long-term solution to TCC shudder. Service Bulletins - Service manuals, electrical schematics and bulletins for 1995 to current GM vehicles. Remove the compartment liner (just pulls out) 3. Service BulletinBulletin No. If TCC shudder is present, a vibration peak will appear within.