Cadillac Lyriq Engine Problems
10 owner complaints filed with NHTSA across 3 model years.
Complaints by Year
Worst year: 2024. Best year: 2025.
Owner Reports
A representative sample of complaints filed with NHTSA.
Sudden Acceleration. -I was driving on a highway. I accelerated to pass a truck and when I took my foot off the accelerator the car continued to gain acceleration. The gas pedal had returned to a normal position but the car was still a...
I was in a left hand turn lane. When I started to make the turn my vehicle lurched and stopped. I tried several times to go and this behavior repeated. Onstar called me (or I called them). They called 911 for me and a fire truck was disp...
My car is equipped with a forward-facing camera, mounted on the forward area of the interior rearview mirror. Additional cameras are mounted on the front bumper, trunk door, and on the rearview mirrors on each side of the car. Various se...
I was driving at a steady 65mph on a highway when the car suddenly surged and the message "1 pedal driving deactivated. Use brakes to stop." I stopped the car with the brakes and restarted it and reactivated 1 pedal driving. Note I wa...
Hi, this vehicle is owned by Surreal Development LLC. A company whom reverse engineers vehicle. GM has an issue in their Cadillac Lyriq's which causes a complete failure of the vehicle's communication systems without warning while drivi...
This is an update to my original NHTSA complaint submitted on May 5, 2025 (complaint number 11658852), regarding a complete electrical failure in a 2024 Cadillac Lyriq. While parked in a garage, the vehicle experienced a full shutdown—...
On or about 11/14/24 Car found completely dead and won't start in garage. Car had about 50% charge in main battery pack and 12V completely dead. Called OnStar service and they had vehicle taken to dealership on flatbed. GM app reports Ve...
I purchased a brand new Cadillac Lyriq on July 1, 2024, and have encountered several severe issues that compromise the safety and reliability of the vehicle: 1.Display Failure: The display frequently flickers, flashes, and sometimes com...
The car has 7300 Miles on it and it has an electrical Battery error that it can not start Also multiple soft ware errors the screen turns off while driving and assist control errors
The 12 volt battery of my 2023 Lyriq died even though the main battery was at 79% charge. The car had sat unused for three days. The 12 volt battery controls the opening of doors, charging ports, and all other accessories. I was effect...