Recall issued by GM (N25249000/NHTSA 25V274) on powertrain/crankshaft and took car to GM dealer and was refused service or safety inspection. Told that they were told by GM not to inspect or service vehicle at this time. How can a safety recall be issued but GM not be ready to inspect or remedy issue?

- Phoenixville, PA, USA

Check Engine Light Came On. Upon Diagnosis', the engine is misfiring, lifters are not performing correctly and there are critical engine alerts and an estimate of 11,000 to fix. 2021 - 83,000 miles v8 - 5.3 NOT the 6.2 and no one will help me bc my power train expires. I am the only owner. Second brand new Tahoe ai bought from this dealership and they are doing nothing to help.

- Frisco, TX, USA

While traveling on the highway one day, my 2021 Chevrolet Tahoe began warning lights on the dashboard. Shortly after, it running roughly, , and jerking, so I pulled over to investigate. There no visible smoke, so I drove to the nearest auto parts store, where they ran a diagnostic test that returned a code of P0306. I then took vehicle back to the dealership where have always received oil changes and repairs. I have never visited any other dealership, relying on certified GM/Chevrolet dealerships. After inspecting the vehicle, they informed me that the lifters needed replacement advised that it would be best to replace the engine entirely. Upon further research, I discovered that issue has been affecting many people in our area and across the United States. This needs to be addressed, as the vehicle is only three years old, purchased brand new with zero miles, and I have not done anything out of the ordinary to cause this problem. The vehicle being 70,000 and 12.000 for repairs is insane.

- Leesburg, GA, USA

1st. While driving at highway speeds my vehicle disengaged from adaptive cruise control when no cars were in view of sensors. However, cars were behind me, making it a little scary. Happened once but I haven't had my vehicle to know if it would happen again. 2nd. Car has a vibration at speeds of 30 to 40 mph. Vehicle has literally been at dealership since February 10th, 2025 with no eta for valve body in sight.

- Grovetown, GA, USA

i have a 2021 Tahoe with 68,000 miles on it. On March 14 my transmission started slipping while driving. the RPM would rev up, the car would jerk forward and then the RPM would fall back down. did this to me 6 times while driving. i got my car home, called the dealership. went to drive it to the dealership and the car would no longer go in reverse. had to have the car towed to the dealership.

- Midlothian, VA, USA

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while her husband was driving at an undisclosed speed, several unknown warning lights illuminated, and the engine made knocking sounds. The message "Service Transmission" was displayed. The contact's husband pulled over and turned off the vehicle. The vehicle failed to restart immediately. The vehicle was taken to the dealer, who replaced the camshaft retainer, valve tensioner kit, gaskets, seals, lifters, engine bolts, rods, and pipes; however, the "Service Transmission" message displayed again while driving. The dealer was made aware of the failure, but the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 89,678.

- Fort Mill, SC, USA

My vehicle has a little over 15000 miles on it. On Thursday April 3rd, while driving 35 mph in town, my RPMs shot up to 4 and the vehicle would not respond to accelleration. A few seconds later the engine light appeared. I managed to get the vehicle home going no faster than 42 mph off and on. Upon arriving home I realized I had no reverse in the vehicle. I immediately called the dealership and was told to bring it in. They didn't look at it until the following Monday April 7th when they determined the Transmission Control Module went out. GM told them they "couldn't find that part anywhere". Thr vehicle still sits behind the dealership and GM has no answers and has already hinted that it may be at least 60 days. This is unacceptable.

- Monclova, OH, USA

Purchased vehicle 10/30/2024 with approximately 65,000 miles. 4 months later at 69,100 miles transmission failed and replaced.

- Wellington, KS, USA

I was driving along the highway at 11pm when I the vehicle started shaking and I heard strange sounds coming from outside the vehicle. I pulled over to inspect and realized it was coming from the engine bay. The engine was making knocking, rattling, and belt slipping noises and the entire vehicle was shaking and the engine also stuttering. I was able to drive the vehicle to a nearby plaza where I had it towed the following morning. There were no warning signs, the vehicle ran properly up until this occurred. The dealership inspected it and told me the engine needs to be replaced and it was likely that a rod bearing that went bad. This happened nearly 2 months ago and I am still waiting for a new engine.

- Palm Beach Gardens, FL, USA

I want to file a complaint on Chevy I have a high country, 2021, my dealership has had it for over 2 months, can't get the part to fix it - valve body- They have another one there, that's been there for 5 months, can't get the part. So, 2 Tahoes at same dealership, same problem, and can't get the part to fix. I have escalated to chevy, have a case number, chevy themselves can't get the part to fix my truck. But I still have to pay for it-big payment for something, I can't drive, isn't worth anything for trade and useless- I am furious. I have been a lifetime chevy owner-and this is changing my mind. Last nights communication with chevy escalation please read:? Dear STACEY, ? We have the following update for your 2021 Chevrolet Tahoe, case number [XXX].? We are still experiencing a delay on the part(s) needed to repair your 2021 Chevrolet Tahoe. We understand this is a significant inconvenience and we continue to work diligently to resolve the delay. If further information is made available, you will be contacted by your dealer or myself. Thank you again for your patience and please contact me to discuss any additional questions or concerns you may have.? I can be reached at the number listed below or emailed at?CustomerCare@Chevrolet.com?(please reply with history to this email for fastest response). AND MY RESPONSE: Thank you for the update. However Janet, if you can not find the part. I want my truck fixed asap. If that means a new transmission then that means a new transmission. This is a Chevy problem and Chevy knows it. Otherwise, payoff my truck. Give me full value so I can trade it I owe $54k.? Not to be a complete rude person. But if my truck doesn-??t get fixed fast. I-??m going to start escalating this to who ever will listen? I know this isn-??t your fault. But it-??s not mine either. And I have a $1300 a month payment for something I can-??t drive. And Chevy can-??t fix! [XXX] Dec 13, 2024 chevy dist INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Syracuse, NY, USA

My vehichle will not go in reverse my wheels are locking up and also my car is going over 6000 rpm when going down the highway and not wanting to shift gears where it is a safety concern for myself and my kids well being

- Clayton, DE, USA

Transmission control module failed. I was driving at about 40 mph on a 4 lane street and it begin to feel like something was pulling the steering wheel to the left and I could not control the speed. I then pulled off into a parking lot and was facing a drainage ditch and needed to back the car into a space out of the way, it would not go into reverse. My husband met with me and was able to drive it forward to drive it to a dealership. The diagnosis was a failed transmission control module that cost us $2,478.

- Zionsville, IN, USA

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while attempting to start the vehicle, the vehicle failed to start as intended. The check engine warning light was illuminated. The contact attempted to start the vehicle several times, however the vehicle failed to start. The contact stated that the vehicle was parked in an underground parking lot. The contact stated that four tow trucks attempted to tow the vehicle; however, the transmission had to be disconnected from underneath the vehicle to remove the vehicle from the underground parking garage. The vehicle was then towed to the dealer where it was diagnosed with a failed fuel pump power control module. The contact was informed that the fuel pump power control module needed to be replaced. The vehicle was repaired. The contact was informed of NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included in the recall. In addition, the contact stated that when the vehicle was retrieved from the dealer after the repair, the failure reoccurred. The contact stated the vehicle was started, and the vehicle was driven to the residence without the failure reoccurring. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 49,064.

- Osterville, MA, USA

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while his wife was driving 45 MPH, the vehicle hesitated. In addition, while attempting to shift the into drive, the gear shifter failed to respond as needed. The check engine warning light was illuminated. The contact stated that the dealer was contacted. The vehicle was towed to a dealer where it was diagnosed and determined that the valve body assembly needed to be replaced. The vehicle was not repaired. The VIN was not included in NHTSA Campaign Number: 24V797000 (POWER TRAIN). The manufacturer was notified of the failure but offered no assistance. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 68,000.

- Copake, NY, USA

Valve body for 10 speed transmission suddenly malfunctioned while driving on I-95 at 60mph causing rear wheels to lock up for couple of seconds. Then, Engine rpm went to 5000. Error message displayed"reduced acceleration, drive with care" and "Unable to shift soon, service transmission soon". Upon taking to dealer, service advisor mentioned that it could be valve body issue. which is very common for these vehicles. After diagnosis from dealer, there were two codes: P0770 and P0776. Upon some research it was found that these issues are indeed very common for 10speed GM transmission. But, GM hasn't done much to address it. GM acknowledged the issue in their Oct, 2023 bulletin. This is a safety issue especially at highway speeds.

- Elkton, MD, USA

Vehicle just lost propulsion and would not move. Engine was running but just came out of gear and went into neutral at 70mph. Pulled off highway and vehicle would not go back into drive. Would not go into any gear except park. After a while it went into drive and would not go over 30mph. Limped into a nearby dealership and dropped it off. It took GM 47 days to figure out the issue yet the new part was installed immediately. Some sort of computer calibration glitch and GM didn't know the answer till I threatened a lawsuit. Still not confident it was repaired correctly. Dealership was fine and informative but GM blew me off.

- Springboro, OH, USA

Engine failed while driving down the road. There was not prior warning signs to this issue. Vehicle was unable to accelerate. The safety of myself and husband were put a risk as we were traveling on an Interstate 12 in Baton Rouge, LA. The vehicle was inspected by Pine Belt Chevy and the cause identified as Camshaft and lifters failed in the engine causing a sudden deacceleration.

- Smithdale, MS, USA

GM does not install TPMS devices in spare tires. I had a flat tire in snowy conditions 100+ miles from the nearest place for assistance. After putting on the spare tire the DIC (driver information center) displayed no air in tire. That-??s because a TPMS doesn-??t exist in spare tires. I started driving a my four wheel drive turned off. I turned it back on and after a very short distance it turned off again. Since the vehicle determined I didn-??t have air in one of the tires (spare previously mentioned) the four wheel drive shouldn-??t work to prevent damage. I needed the four wheel drive in the snow so I had to proceed at approximately 25 mph. This is a safety issue for not only my vehicle but others on the roadways. I contacted the dealer that had no idea about the problem and neither did the national GM customer support center. There is a tool that -??tells-?? the vehicle where each tire is located so that is low tire pressure occurs the driver would know which tire needs attention. If a TPMS was installed from the factory and a flat occurred, spare installed then the four wheel drive would function. If a flat subsequently occurred the driver would still be alerted but wouldn-??t know tire was involved. Visual check would find it. Either this or have GM provide an override so the trip could be continued safely. I believe that this situation applies to any four wheel drive vehicle not just GM and should be resolved if the NHTSB would initiate an investigation.

- Waynesville, NC, USA

Statement of Safety Issue for 2021 Tahoe Transmission Vehicle Information: Make and Model: 2021 Chevrolet Tahoe VIN: [XXX] Issue Description: I have been receiving the warning message "Service Transmission. Unable to Shift Soon." multiple times, specifically on [XXX] and again on [XXX]. This issue is particularly concerning as there is an existing recall on the 2021 Tahoe for a transmission problem that can cause the rear wheels to lock up or result in the vehicle suddenly losing the ability to shift, as explained by a GMC transmission technician. Attempts to Resolve: I have contacted multiple dealerships to attempt to get my transmission diagnosed. Unfortunately, all dealerships within my area are backed up with transmission work for 4-6 weeks. I have spoken to multiple dealership service departments and have been informed that there are numerous vehicles currently experiencing this same exact issue. Some vehicles are continuing to drive, while others are being stranded on the side of the road, unable to shift. Safety Concern: The safety concern, as stated in the recall, is that my rear wheels may lock up or my vehicle may suddenly lose the ability to shift. This is particularly alarming for me as I have to drive over a large steep bridge every day to go to work, and there is no emergency lane while traversing the bridge. I am terrified to continue driving, but I only have one vehicle for my family (this 2021 Tahoe) and no dealership has a loaner vehicle available due to the high quantity of transmission errors. Conclusion: Given the severity of the issue and the potential safety risks, I urgently request assistance in addressing this transmission problem as soon as possible. The current situation is untenable and poses a significant danger to my safety and the safety of others on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Lake Charles, LA, USA

Glow plug issue. Glow plug broke off or appeared burnt when dealership removed. Check engine light illuminated.

- Kansas City, MO, USA