2021 CHEVROLET TAHOE Complaints

There is a serious cabin air pressure issue in this vehicle. When driving at any speed with the windows up, there is a booming inside the cabin, as if the passengers are inside of a subwoofer. My theory is that the headliner panel has too much flexibility in it due to the ceiling air vents. When driving, it is likely the headliner is bouncing up and down, creating the booming air pressure. Within 2 weeks of delivery of this new car and daily driving, my passengers and I developed serious ear issues which we attributed to the car. It got to the point where I would immediately have pain and ringing in my ears just driving a very short distance. None of my other cars including SUVs cause or have ever caused this issue. It is important to note that with all 4 windows rolled down, the problem does not happen. It's only when the windows are up. I have the LS trim without the sunroof.

After turning off a major highway (65 mph) onto a side road after driving for approximately eight hours, the transmission shifted into N...on its own. The engine continued to run but the vehicle would not move. We could not shift into P, R or D. When attempting to shift into P, R or D, an error message appeared on the dashboard that said "Conditions not right for shifting." We turned the vehicle off and then back on and the error cleared. The vehicle continued to drive "normally" for another two hours and the end of the journey. Had this happened in the middle of heavy traffic, a deadly accident could have occurred. Mileage on vehicle is 4,900. Date: 13 July 2021 at 1800 hours. Dealer has been notified but has taken no action to date. There were no warning signs or messages prior to the incident. I'm guessing it is a sensor or software problem related to the engine/transmission. There is a paragraph in the Owner's Manual that states: "Under certain conditions, propulsion will be disabled. Try restarting after the ignition has been off for two minutes." It offers no other explanation as to what "under certain conditions" means.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the interior paneling was loose which exposed the electrical wiring and allowed outside wind sound inside the vehicle. The vehicle was diagnosed but was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 5,230.

On July 3, 2021 approximately 2:00pm EST. Left to go out of town, had driven about 50 miles. Stopped to top off fuel. Left station for fueling stopped at red light to turn left to get back on interstate. The vehicle stuttered, stalled, and would not restart in middle of intersection. Hazard lights put on nearly hit by other vehicles. State trooper had to get behind vehicle to let other know of hazard. Towed to nearest dealer. Onstar diagnostic revealed fuel management system and transmission. Dealer hasn’t contacted but service advisor from GM notified me it was fuel pump.

2021 Chevy Tahoe/ Service Steering Column Lock contnues to message after each start.milage 900 miles.My concern is that steering failure could occur while in transit. Dealer was unable to resolve issue.

We have owned this 2021 Chevrolet Tahoe for a little less than a year. Since acquiring this vehicle, there have been multiple safety recalls and we have had to get the vehicle serviced 3 times due to electrical issues. Now for the major safety issue, was out of town waiting at a red light in a turning lane. As we were waiting, the Tahoe spontaneously turned off. All of the indicator lights on the dashboard were illuminated and my husband tried to restart the car but the engine just kept turning and the car would not start. We put the hazard lights on and wanted to get the vehicle out of the road where there was active traffic. However, the vehicle was unable to be shifted to neutral so we were stuck and also important to note the hazard lights were not working. We towed to the nearest dealership and tow driver had to apply WD40 on the ramp to get the truck off since it wouldn't shift to neutral. At the same time, my husband received an email from OnStar "An issue with the Engine and Transmission System in your 2021 Chevrolet Tahoe has been detected." Now being told by dealership this was caused by a fuel pump module cut off, causing the car to go into "limp mode" so who knows what is true. I do not feel safe driving this car nor having my kids in it. This would be a very different conversation if this happened on a highway. This vehicle should be recalled because someone gets killed.

On my way to work a few days ago I noticed a lag while driving and a knocking feeling/sound ever few seconds going highway speeds. No engine light came on to warn or tell of an issue. I thought maybe it was just a section of roadway that makes cars ride rough. Anyway, made it to work and I could hear a whining sound every time I gave vehicle gas and RPMs increased. We called our GM dealer and he said it’s a known issue of collapsing lifters and to bring it in for repair. Vehicle had around 5900 miles. 20% oil life was left. I checked oil and level was fine. I’m in a loaner now waiting for repair. If it’s a known issue, why is it happening. Inferior parts or bad design? A recall needs to happen before someone gets hurt.

May 6, on vacation, sudden engine failure, valve lifter and lifter rod. GM told dealer only to replace lifters on one side, Cyl 5 was problem. May 24 car ready, pickup and 68 miles later same problem while on I95 in SC. Did not trust engine and drove in right lane. GM played Russian roulette with our safety and that of other people on road. Sudden engine failure can result quickly in accidents with possible casualties at highway speeds. After pulling of I95, called GM Road assistance. Towed to dealer. They were of no help. Family member from CHS , SC send trailer to bring us all the way home in New Smyrna Beach Fl. While on phone with GM Road assistance we idled the engine to keep cell phone charged. Suddenly engine stopped and on restart heavy smoke came from tail pipe. May 25 car delivered to dealer in NSB where we bought car. May 27 they informed us same lifter/rod problem occurred on other side. Look at Chevroletforum.com and you will see 2021 6.2 engine having these problems within 8000 miles. Have been in contact with GM customer Assistance Center since May 14. We do no longer trust this engine. GM already decided to redesign the lifters as they are aware of the problem. NO recall has been issued yet. Consider this a serious highway safety issue. Do not consider the car a lemon, but yes the engine sure is.

2021 Chevrolet Tahoe. Consumer stated that the bumper on vehicle began to turn yellow.

We purchased this vehicle on 11/28/20, and on 12/10/20 began receiving multiple error messages and loss of power on the accelerator. Shortly after the error messages began I was no longer to even start the vehicle. It needed to be towed to the dealer and eventually required a full engine replacement, and was out of service for 22 days. On 5/19/21 I was getting on the highway with my wife and 3 young children and began receiving many of the same error messages. The car was brought to the dealership the following day and I found out that this was another major engine issue. They need to order several parts, one of which is on backorder. As of 5/24 it has been out of service for an additional 5 days, bringing the total up to 27 days out of service, and there are currently 4800 miles on the car.