2024 Cadillac Lyriq Complaint Log

Repeat issue from dealer repair. When sometimes car slams on breaks at 1 mph with nothing behind it. Can happen once or several times during this one time backing up. I pull forward and then back up again no issue. Also get a service parking brake error for no reason and goes away. Rear braking happen clear days sunny day and rainy days randomly

Driver assist forward continues to have issues after being at dealer for issue for 4 weeks for repair After getting car back from dealer for the first three days the error did not come up. Now the error comes and goes daily. Issue happens when approaching stop lights stop signs where there is nothing in front of you starts vibrating seat and slams on breaks. Same stop sign as yesterday but today it vibrates warnings Makes not sense.

We own a 2024 Cadillac Lyriq EV. We began experiencing safety concerns related to battery performance and overall vehicle reliability during the active bumper-to-bumper warranty period. These concerns were reported to an authorized GM dealer, Napleton Cadillac, prior to warranty expiration. Service records at Napleton Cadillac document the history of these complaints. The vehicle has been unable to process required over-the-air (OTA) software updates through GM's intended automated update process. During a dealer visit on February 17, 2026, at GM's direction, the Napleton Cadillac service technician confirmed that the vehicle had multiple open notices and that our reported concerns are consistent with known issues affecting the 2024 Cadillac Lyriq across multiple units — indicating this is not an isolated occurrence. The dealer advised that correcting the update failure would require approximately five hours of manual labor at an estimated cost of $1,250 — a cost GM has declined to cover, despite the fact that the OTA update process is the manufacturer's intended method for delivering safety-critical corrections and the failure to update is a vehicle deficiency, not a customer-caused condition. Due to these unresolved safety concerns, we have not been driving the vehicle. We do not have confidence that the vehicle is operating safely or as designed. We formally requested a repurchase from General Motors through the EV Concierge program (Case No. 87486271). That request was denied on March 14, 2026, citing two rationales: (1) the vehicle is out of warranty, and (2) system updates do not qualify for repurchase. We believe these rationales fail to account for the fact that the original safety complaints were filed during the warranty period and that the root issue is battery and system safety — not a routine software preference. We are filing this complaint to create a formal federal safety record and to request that NHTSA evaluate an investigation or recall.

GM is not providing printed Owners manuals or Limited Warranty and Owners Assistance information with the 2024 Cadillac Lyriq. While this information is availabe on line important safety information is unailable during operation of the vehicle. At this time these manuals are unavailable to purchase.

The contact owns a 2024 Cadillac Lyriq. The contact stated while driving undisclosed speeds, the instrument panel went blank for approximately 3-seconds. While driving in the driveway, the brakes applied aggressively. While approaching a stop light, the collision detection system engaged, and the front driver's side seat was shaking. The contact stated that the brakes then locked up. Additionally, there was water entering the vehicle. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 99.

When in reverse abrupt automatic braking occurs. Safety hazard with abrupt stop around other vehicles, hard braking causes driver and passenger to pitch forward. No warning. Automatic Braking disabled, sensors checked, settings adjusted by dealer. Dealer says there is nothing they can do. General Motors contacted but no action taken to date.