2018 Chevrolet Tahoe: check engine light

Filed Feb 16, 2026 · Engine, Transmission · TX

Unknown, vehicle starts to jerk when shifting gears. Jerks when breaking and when accelerating. Check engine light on. I see there is a prior recall for the same issue on same year as mine

Filed Jan 20, 2026 · Engine · MA

For several months my check engine light has been flashing when I’m driving, especially on the highway. At times my vehicle feels sluggish. I press further own into the gas pedal and I am not getting adequate propulsion. It also feels like this when I’m going up a hill. I brought the vehicle to two independent service centers to get a diagnostic. One indicated getting misfire readings on two cylinders. The other indicated getting misfire readings in three cylinders. As you would imagine this is an extremely concerning safety risk.

Filed Apr 30, 2025 · Transmission · 80,000 miles · GA

The contact owns a 2018 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the vehicle began to shake excessively, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission. The vehicle was repaired, but the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was 80,000. The VIN was not available.

Filed Feb 20, 2025 · Engine · 83,000 miles · PA

The contact owns a 2018 Chevrolet Tahoe. The contact stated while driving 35 MPH, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle was restarted. The ABS and check engine warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the crankshaft push rods, resulting in damages to the engine. The contact was informed that the crankshaft and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 83,000.

Filed Apr 8, 2024 · Fuel system, Transmission · FL

7-21-23 Unit stalled 3 times today. The last time was while driving. Check engine light on. 1-29-24 Today I was responding to an emergency backup for an officer that was fighting two subjects. The subjects were fleeing from a stolen vehicle and it was dispatched that these subjects were armed. I never made it to this call because my vehicle #10688 would not accelerate past 23mph and then shut off leaving me stranded in the roadway. While waiting for a tow truck I was able to get the vehicle started again and was able to drive at only 36mph to try to get to the scene and assist the officer. I ultimately was able to make it to the police station. I wrote up the vehicle and left the keys in the training building.

Filed Nov 15, 2022 · Engine · 104,163 miles · GA

The contact owns a 2018 Chevrolet Tahoe. The contact stated that while driving approximately 65 MPH, the vehicle decelerated and abruptly slowed down and lost motive power. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic who informed the contact that the SMR lifter and the engine failed. The contact called the local dealer who informed her that the parts were back ordered but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but provided no additional assistance. The approximate failure mileage was 104,163.

Filed May 9, 2022 · Engine · 22,949 miles · TX

The contact owns a 2018 Chevrolet Tahoe. The contact stated while driving at various speeds, the vehicle stalled with the check engine warning light illuminated on the instrument panel. Recently, the contact had the vehicle towed to a dealer where they diagnosed the vehicle with engine failure. The contact was notified of the diagnosis and the dealer recommended that the engine be replaced. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was 22,949.

Filed Nov 9, 2019 · Electrical · 15,500 miles · AK

On or around october 16 2019 I was driving my 2018 chevy tahoe when the radio stop playing. I pulled over in a hotel parking lot turn the vehicle off open the door and then started the vehicle back up. The radio did not work. I went to mcdonald's to have breakfast it was about 30 minuets before I got back in the truck started it up and the radio stated to play. I thought it was strange so I continue to drive 2 days later my check engine light came on so I took it back to the dealer to see what was wrong. They told me that they clear the code and nothing was wrong with the vehicle so I then got an oil change since the vehicle was already in the shop. On november 2, at around 3:20 my car RPM was on 5 and the speed limit was only 23mph. Then the check engine light came back on. I call the dealer and explain the situation and the told me to bring it back in the next day. When I started the vehicle and put it in drive the vehicle made a huge thrust as if I was hit from behind. It's been a week now and my vehicle is still in the shop.

Filed Sep 3, 2018 · Fuel system · 1,639 miles · WA

First the fuel gauge stopped working on and off would go to e when on full tank. Then check engine light came on days later. Then vehicle stopped running while driving, and would shut off. Engine would start and drive again, then stop running and shut off while driving. First time I was driving on hwy, then on city streets. Vehicle is in gm shop now, and they said it was the fuel pressure sensor. And they are replacing the part.