2016 GMC Yukon: check engine light

Filed Oct 8, 2026 · Transmission · 115,280 miles · NC

The contact owns a 2016 GMC Yukon. The contact stated that upon starting the vehicle, the vehicle was shaking violently. The contact stated that while driving 15 MPH, the vehicle lost automotive power. The check engine warning light was illuminated. The contact continued driving at a reduced speed. The vehicle was taken to a dealer where it was diagnosed, and the contact was informed that the camshaft lobe had failed and needed to be replaced. The manufacturer was notified of the failure. The failure mileage was 115,280.

Filed Jun 30, 2026 · Transmission · 119,637 miles · TX

The contact owns a 2016 GMC Yukon. The contact stated that while the vehicle was at the inspection station for an inspection, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the transmission had seized, and the vehicle failed to move. In addition, the check engine warning light was illuminated. The contact stated that the failure had occurred immediately after an unknown device was attached to the vehicle while being inspected. The contact informed the inspector of the failure. The contact was advised to contact the federal safety agency Hotline to report the failure. The dealer was not made aware of the failure. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was 119,637.

Filed Feb 23, 2026 · Engine · 27,000 miles · TN

The contact owns a 2016 GMC Yukon. The contact stated that the vehicle was initially repaired under warranty for a bent push rod in cylinder #4; however, the failure recurred. The vehicle was repaired another time at the expense of the contact's son, who previously owned the vehicle; however, the failure persisted. The contact stated that while idling and while driving, the engine was misfiring and running rough. Additionally, there was a significant amount of smoke coming from the exhaust pipe. The check engine warning light was illuminated. The vehicle was taken back to the dealer, where it was diagnosed, and the dealer determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was contacted and informed that the repair would not be covered because the vehicle was out of warranty. The failure mileage was approximately 27,000.

Filed May 13, 2025 · Engine · NY

Check engine light came on. Immediately went to reputable local repair shop. Shop advised push rod bent due to faulty engine. Advised to call GMC because not normal wear and tear. Called GMC expressed my frustration about this being preexisting issue w this engine. GMC corp told me I had to ship to GMC dealership at my own expense then they could help me. Local GMCs backed up 6-8 wks. Towed car 1.5 hrs away. Mechanic told me not to worry this happens all of the time, GMC will take care of it. Pointed out a row of new trucks with my incl new Escalade with same issue. I spoke to a sales rep about trading my car in for new but he said engine issue still not resolved. He advised me to lease Escalade for $900 because by the time my engine blew my lease would be up; if not GMC fix under warranty!! Mechanic said new engine but GMC will take care of it. I waited 3+ months for GMC to authorize repair. GMC said they did not get docs but mechanic sent me verification of conversation and repair order sent to GMC. Mechanic received an unrelated warranty from GMC that said my issue was not covered. Mechanic said docs sent made no sense bc he sent the right warranty and he was sorry and embarrassed by GMC behavior. I finally paid over 14K for new engine. Picked up my car and drive a block and car still knocking and engine light came back on. I had returned my rental and no way home. In tears dealership gave me my rental keys back still all at my expense. The mechanic calls me two days later to tell me my torque needs to be replaced. I am hysterical, 14k spent, and car still not fixed. GMC told me to pay additional funds for torque converter or pick up. Threatened to charge storage fees. When I discussed their liability GMC became very rude and antagonistic. They cut off my communication with their lead mechanic. Took care of back to local repair shop. He said this smells of a law suit so would not touch vehicle. I all communication 106 more files to share.

Filed May 6, 2025 · Brakes, Electrical · IL

Engine light keeps appearing and when checked it shows catalytic converter needs replaces and its sensors need replaced. Brake light has short in it and I repaireable

Filed Apr 23, 2025 · Engine, Transmission · 250,000 miles · AL

The contact owns a 2016 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly downshifted with the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the transmission had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 250,000.

Filed Mar 10, 2025 · Engine, Transmission · OK

The contact owns a 2016 GMC Yukon. The contact stated that while driving at 65 MPH and attempting to accelerate, the vehicle briefly shuddered before returning to normal functionality. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the torque converter. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

Filed Apr 24, 2023 · Electrical · TX

This is a very common problem with GM vehicles produced from 2015 to 2019 and is occurring in 5.3L and 6.2L gas engines. The engine coolant temperature sensor is failing and defaulting to a fail safe that turns the electric cooling fans on to full speed because it thinks the vehicle is overheating. When this sensor fails, the engine temperature gauge will not work. When the vehicle is turned off the fans will stay on for 15 minutes at full speed and will deplete the battery. The sensors are being replaced multiple times with different manufacturers and the problem returns in a matter of days or weeks. You can disconnect the battery negative post and reconnect and the problem corrects until it is tripped again at later date. GM has no solution for this. This issue will leave a driver stranded and will cause engine or transmission issues if driven while the vehicle is doing this. There is no check engine light or code tripped while this occurs either.

Filed Nov 30, 2022 · Engine · 102,000 miles · TX

The contact’s wife owns a 2016 Yukon. The contact stated that while his wife was driving at approximately 5 MPH, the engine hesitated and stalled. The contact stated that his wife was able to coast the vehicle into a driveway. The check engine warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed that a lifter in the engine block was damaged and the number two cylinder had failed, and the engine needed to be replaced. The vehicle was not repaired. The dealer was notified of the failure and the contact scheduled an appointment. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 102,000.

Filed Sep 30, 2022 · Engine · 90,000 miles · NV

The contact owns a 2016 GMC Yukon. The contact stated while driving approximately 30 MPH, the vehicle began to shudder and she noticed that the park assists, stabilitrak, and check engine warning lights were illuminated. The contact stated that the vehicle then stalled. The contact was able to shift the vehicle to park and restarted the vehicle. Additionally, the contact stated that after the vehicle stalled, the vehicle lost power steering functionality. The contact stated that the failure was intermittent at first but had become constant. Additionally, the air bag warning light and an audible chime would sound when the engine stalled. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the failure could not be duplicated. The vehicle was not repaired. The contact stated that the failure had recurred. The manufacturer had not been informed of the failure. The failure mileage was approximately 90,000.

Filed Feb 22, 2022 · Electrical, Engine · TX

The largest issue was today, 2/22/2022, when I was driving doing 56 miles per hour it felt like it wouldn't accelerate. Then all of a sudden, the wheel kind of jerked right and the car shifted down all on it's own and I was doing 25 mph. The check engine light came on immediately after the violent jerking happened. I was on a 4 lane highway and had to immediately pull over onto the shoulder. It was jerking forward and back as I was trying to pull over on a freeway where the speed limit is 70 mph!!! I had my 80-year-old mother in the car with me. AND YES!! It put us both at great risk! I had to call a tow truck and they towed it to a dealership 9.8 miles away. When I talked to the Assistant Manager, he said that there were 3 other GMC Yukon 2016 that had come in today - ALL WERE 2016 GMC YUKON MODELS WITH 125K MILES. My GMC has 124,700 MILES all with Transmission problems. This can't be an anomaly. So I got online and there are many, many complaints about this transmission. As a matter of fact, it appears in 2019 there was a Class Action Lawsuit about this very thing. I will not know until tomorrow for sure what the issue is - because the dealership could not get to it today. However, something significant happened. As a side note, recently I had an electrical problem where sensors, etc are all saying need to be serviced and none of them are working. I had appt today at 10:30 am to have them check this. On the way there, the violent jerking and sudden downshift and check engine light came on. I was scared to death and so I pulled over and called a tow truck. The dealership did not tell me this is a common issue, nor was I aware. The dealership told me if it is in fact the transmission - cost is $6,000!!! I need someone to contact me to discuss this. Thank you, [XXX]phone - [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Dec 6, 2021 · Engine, Transmission · 92,000 miles · AR

The contact owns a 2016 GMC Yukon. The contact stated that while driving at an undisclosed speed, the RPM gauge was high, and the vehicle stalled. The check engine warning light was illuminated. The contact was able to restart the vehicle and drive to her residence. The vehicle was towed to an independent mechanic. The mechanic informed the contact that the failure could be related to the transmission. The vehicle was not diagnosed nor repaired and remained with the independent mechanic. The dealer was made aware of the failure but informed the contact that the next available appointment was in January 2022. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,000.