PER HENDRICKS CHEVROLET IN HOOVER, AL "INSPECTED REAR DIFF FOR METAL & FOUND LAARGE AMOUNTS OF METAL ON DRAIN PLUG MAGNET. RECOMMEND REPLACING REAR DIFF DUE TO LARGE AMOUNT OF METAL FOUND IN OIL." There was no warning on the vehicle; however, you can hear it loudly when a left or right turn is made.

- Mobile, AL, USA

My tahoe is throwing a low engine oil code and burns through about 2 quarts of oil in between oil changes. other tahoes of the same year make and model have been recalled for the same issue but mine was not.

- Meadville, PA, USA

We just recently had the cam shaft and lifters replaced, as the vehicle began experiencing a knocking sound. The repair was supposedly completed, and they gave the truck back. We took the truck back in within a week, bc we continued to hear the sound. They sent it back saying they didn-??t hear anything after test driving it. Over the weekend the car shut off after beginning to shake uncontrollably. Now supposedly the camshaft bearing is gone, and the truck experience engine failure. I spoke with someone previously, as the issue being repaired hundred thousands of cars were recalled for the same issue. I was told that it wasn-??t on the same line, even though my truck was experiencing the EXACT issue and fell under the years. We were placed back on the road with our family, with a vehicle

- Miami, FL, USA

Driving down the highway (open road) and the sunroof spontaneously shattered.

- Perrysburg, OH, USA

I-??m reporting a transmission failure that occurred unexpectedly on my 2021 Chevy Tahoe/the diesel version has been recalled so I don-??t know why all the other 2021 Tahoe have not been recalled for this issue. The vehicle began shifting roughly and slipping between gears, followed by a warning message and eventual inability to shift properly. I had it inspected by a family friend who owns a body shop, and I was told the transmission needs to be replaced at a cost of nearly $7,000. I am no longer under powertrain warranty, but this failure feels premature and unsafe for such a new vehicle. I-??ve seen many other 2021 Tahoe owners report similar issues online including transmission failure, harsh shifting, valve body problems, and complete breakdowns. This seems like a pattern, and I believe it may warrant investigation. I-??m asking NHTSA to investigate whether this is part of a broader transmission defect that poses a safety or reliability concern. Sudden shifting issues and inability to accelerate or reverse are dangerous for drivers and passengers. Thank you for your time and attention to this matter.

- Tomball, TX, USA

Our vehicle was rear ended and the front passenger seatbelt did not lock or (possibly) locked too late. The front passenger's face hit the dashboard, as well as their knees and feet. The vehicle that hit ours was estimated to be travelling at about 45 mph and we were rolling at around 5 mph in traffic. The failure has not been able to be reproduced by the collision center, the sensor callibration contractor, nor the dealership. No sensors showed any failures and the tension appears to be correct on the seatbelt. We have been unable to determine why the seatbelt failed during this incident and if the vehicle will react appropriately in the event of another collision.

- Houston, TX, USA

3rd row headrest- not staying upright was recalled prior to current condition not upright 2nd row seat- adjustment cable broken no longer working Transmission- pump and valve body failed required replacement

- Rialto, CA, USA

Instrument panel has failed twice and is unresponsive. The gauges move and stay to the left after moving left to right. All lights begin to cycle through error messages. I have video of the issue both times it happened. When it occurs, you don't know your speed you have to guess, the full tank reads empty etc., and it is dangerous to back up. The vehicle has been diagnosed by one independent mechanic and is currently at the dealership. There was no warning before the instrument cluster failed other than a cycling through of warning messages service transmission check 4X4, service suspension system, service Power Steering Drive with care. -The center screen goes in and out. -When in reverse, the rear camera is black, the screen blinks intermittently. - Dealer has stated that the wires are put on incorrectly- if that is the case, I am not sure who would have done that other than the manufacturer. -previously reported there was a strong gasoline smell in the cabin that made it really hard to breathe. Dealer corrected. Right passenger side is intermittently wet with no cause from the interior creating stale smells, making it hard to breathe. It is important to note this is the side where the electrical wires are "put in incorrectly" according to the dealer. I also have a video of what occurs

- Irvine, CA, USA

My vehicle is a 2021 Chevrolet Tahoe with less than 90,000 miles and the catalytic converters have internally failed causing a $3000 complete replacement of that system in which they state should last a lifetime of the vehicle and it is not even five years old.

- Panama City, FL, 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

2 incidents of complete engine power loss while driving. Luckily was able to roll off road safely to curb. Dashboard glitch/flashing multiple/various message, including check engine, conditions not ideal to shift, etc. Would not re-start/shift when attempted. Tried disconnecting battery cable completely and re-connecting and that seemed to 're-set' the system and engine re-started. Incidents were about 30 days apart. "This battery reset" was tried because approx 1 year prior after leaving Tahoe parked at airport for a 7 day trip, it would not start, completely dead. Battery charge/jump would not work...watched youtube videos and someone said to try disconnect/reconnect cable and it worked to start it up at that time & did take it into Dealership after that incident and no-cost repairs were made for that issue. Called Chevy 3/25/25 on this power loss while driving issue to ask for information/assistance, they advised to take to dealership for diagnostic info/report and depending on result/cause might assist with costs to repairs. Appointment set for 3/28/2025 with Salem Oregon Chevrolet.

- Mount Angel, OR, USA

I have taken this vehicle two times to the dealers that sell Chevrolet. The first time it was there for 5 hours and nothing was done and the second time the service agent said there was no recall on this vehicle when obviously there is one.

- Miami, FL, USA

The HVAC blend/mode door actuator has melted, causing a fire hazard.

- Palm Bay, FL, USA

WHAT FAILED: Main Radio. SAFETY CONCERNS: GM sent an over the air update to car around July 5, 2024 and the update broke the whole radio system to my car. I now have no access to OnStar, bluetooth for phone safety, maps, blinkers on side mirrors, radio etc. Dealer mentioned it is a very common problem with this particular GM product and the over the air update to cars. When I asked to turn this feature off so it doesn't happen again it is not an option. The Chevrolet Dealer and a sound system specialist has inspected vehicle. Sound System specialist said this part may only be replaced by the dealer as it is the high end radio system. There was no warning of the update happening. The car was in great condition until this update was pushed through in the middle of the day. Now I am being quoted $2000 to fix it with no guarantee that it wont happen again.

- Huntington Beach, CA, USA

Gps/onstar module not working, I read a lot of people are complaining same thing. I had it for a year, warranty done but I never used it. Sad you spend $70k on a truck and onstar goes bad and you never used it and they want more money to replace it. Now engine light is on.

- Plainfield , IL, USA

I was driving to work today and I heard what sounded like an explosion, so I stopped and pulled to the side of the road and checked everything and I seen that the sunroof glass was broken, I have only ever used the sunroof twice and that was to see if it was working. My safety and others on the road were at risk because if I would have had the sunroof sliding shade open the glass would have fell on my head or in my face. Also anyone driving behind me I'm sure the glass flew on their vehicle and could caused an accident. I got to work and called the local Chevrolet dealership in town and they said there were no recalls for this problem, but yet I looked it up under GMC forums and there has been other people saying it happened to them, especially the same year and make and model. My vehicle has not been inspected by the manufacturer, police or insurance yet, I reached out to the Chevrolet dealership and they said there was nothing they could do to help because there were no recalls on my vehicle, so I asked the girl in the service department who was higher then her and could help me because I did nothing wrong and did not feel that I should have to pay to fix this problem. She then gave me customer care contact information and I am waiting for a response. There were no warnings or symptoms or any messages on the dash, my sunroof glass just exploded without any warnings.

- Tucson, AZ, USA

The airbags failed to deploy in my 2021 Chevrolet Tahoe after being involved in an accident where another vehicle t-boned my vehicle on the passenger side front end to rear end causing severe damage and pushing my vehicle with great force. A police report was taken by officers that responded to the traffic accident. A claim was filed with my auto insurance and my 2021 Chevrolet Tahoe is currently being repaired as it was not deemed a total loss. Myself and my passengers were injured and received and continue receiving medical treatment for our injuries; our safety was definitely placed at risk. Before being involved in this accident, warning alerts/lamps would appear on the vehicle-??s dashboard indicating to -??service the safety restraint system-?? and also to -??open then close passenger window-?? which in turn led me to take the vehicle in for service however the dealer said it could not be duplicated nor did the computer show any alerts. After the accident, I Contacted General Motors and filed a claim for the non deployment of the airbags, they in turn are conducting their investigation.

- Imperial, CA, USA

Exhaust fumes in cabin from back presure valve welds

- Mount Prospect, IL, USA

High pitched whine during during acceleration.

- Melbourne, FL, USA

Purchased a 2021 Tahoe in late 2020 - May of 2021 the car started leaking water during a rain storm into the main cabin. Brought it to the dealership and they couldn't find any issues. Fast-forward to 2023 and it happened again in May and June. Brought the car to dealership and was told that the sunroof drains were clogged and it's a maintenance issue. I contacted GM and after about 2 months they had a field tech look at it....found that it wasn't a maintenance issue but a sunroof drainage tube that was installed incorrectly. I received an email saying that they would replace the tube and front carpet but I need to pay 50% of the bill. All the carpets and roof liner have been affected by the leaking and the car smells like mildew. I would expect them to at least replace everything and pay 100%. If they were responsible they would take the car and replace it with a new car for me. I purchased a $65,000+ vehicle with a factory defect that has caused water leaking into the car and i don't know if there will be future issues with electrical or mold.

- Brookline, MA, USA