Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2024 Cadillac Lyriq owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2024 Cadillac Lyriq. The contact stated that while reversing, the rear-view safety sensor alert did not function as intended. In addition, the contact stated that the auto-braking safety sensor did not activate. The contact's vehicle crashed into a tree. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure, and a case was filed. The contact stated that the case was denied. In addition, contact was denied to receive any documents providing the decision of the case. The failure mileage was approximately 18,125.
The contact owns a 2023 Cadillac Lyriq. The contact stated that while reversing and proceeding to make a U-turn, he crashed into a steel guardrail. The automatic braking system did not engage. There was no audible or visual alert or warning provided by the system. There was no injury, police report, airbag deployment, or fire. The vehicle was taken to the local dealer. After twelve days, the vehicle was not diagnosed or repaired. The manufacturer was contacted, who confirmed the vehicle had functioned as designed. The failure mileage was 8,600.
on Sept 23, 2025, I was rear ended by a driver going between 50-60 mph. I am concerned that some safety features were potentially not working at the time of the incident. I will detail the information below: Background / Original Service Issue: When I initially brought my vehicle to Titus-Will Chevrolet GMC Cadillac for service, I observed that multiple critical safety systems were nonfunctional, including, but not limited to: Forward collision alert sensor All cameras (rear, front, top down) Blind zone steering assist Lane departure warning and other associated warning sensors The dealership kept my car for two days and then informed me that a "module" needed to be ordered for repair, but stated that the vehicle was considered "drivable" and would call me when the part came in. I noticed some of the safety features had resumed working, however some were still non-functional. …
On November 26, 2025, while traveling in stop-and-go freeway traffic, I experienced a severe braking failure that led to a rear-end collision. Despite applying maximum force to the brake pedal, the vehicle did not decelerate as expected. Objective technical evidence from the Bosch CDR report (Case #1105768) confirms a critical system failure: Extreme Driver Input: At -0.5 seconds before impact, Driver Applied Brake Pedal Pressure reached 10,935 kPa, representing a near-maximum emergency braking effort. Inadequate Response: Despite this peak pressure, the Vehicle Indicated Speed decreased only from 24 MPH to 22 MPH in the final 0.5-second interval. Data Discrepancy: The vehicle decelerated by 12 MPH (from 36 to 24 MPH) between -1.0s and -0.5s under lower pressure (7,695 kPa). However, when brake pressure was increased to its peak at -0.5s, deceleration effectively stalled. …
I put the car in reverse and released the parking brake. The car started to move backwards. However, the back passenger door was wide open, and the passenger was standing outside the car in the path of the open door. The door hit a guide wire running from the top of a power pole to the sidewalk beside the car. The wire pulled the door backwards, destroying it. This was fortunate. Without the wire in the way, I would've had not heard the crashing of the door and would have continued to drive over the person standing beside the car as the passenger door knocked him down. The indicator that the door was still open is so small on the gauge cluster that I couldn't see that the door was still open when I put the car into reverse. There was no audible warning that I was about to move before all doors were closed, and the emergency braking didn't stop the car from moving. …
While driving my 2024 Cadillac Lyriq in rolling traffic, the vehicle abruptly engaged the brakes without warning or cause. The braking was so forceful I initially thought I had been rear-ended. Once the braking event ended, I began to accelerate-only to discover the vehicle had shifted into reverse without any input from me. This resulted in a rear-end collision. There were no alerts or dashboard warnings to indicate the gear change. I believe this may be related to a malfunction in the automatic emergency braking system or the shift-by-wire controller. This behavior presents a serious safety hazard and must be investigated. I have filed a report with Cadillac and will be taking the vehicle to a dealership for diagnostics and data log review.
I pulled my vehicle in my garage and was lightly tapping the accelerator to get the vehicle far enough in to avoid it interfering with the garage door. I had one-pedal driving engaged so I was not using my brake pedal. Once positioned I was getting ready to put it in park and the vehicle rapidly accelerated as if someone was stomping on the accelerator. It slammed into a refrigerator I have in the garage, pushing it about 2 inches into the wall, breaking through the drywall. The impact was so hard the refrigerator door also popped open and stuff went flying out. I had to slam on my brakes to get it to stop moving forward even though my foot was not on the accelerator.
On September 9, 2025, while slowly turning into a parking space at approximately 7 mph, the vehicle suddenly experienced unintended acceleration. There were no warnings, alerts, or Safety Alert Seat vibrations prior to the surge. The vehicle rapidly accelerated forward, struck a parked car, went over a curb, hit a tree, and finally came to rest after colliding with the side of a building. GM has since taken possession of the vehicle for forensic analysis.
When approaching a red light at 5-10mph, I engaged the brakes, but the brakes did not work and the automatic breaking didn't work either, leading me to rear end the car in front of me. There were no prior warnings lights or notices, and the breaks were working properly before and after the accident. The car was towed to the dealership for inspection, but they could not find anything wrong and have contacted GM for further inspection.
On [redacted], my wife was driving our 2024 Cadillac Lyriq RWD (VIN: [redacted] ) in stop-and-go traffic on [redacted] at 5-10 MPH. She was maintaining a safe distance when the truck ahead suddenly stopped. She pressed the brakes firmly, but the vehicle failed to stop, resulting in a collision. Despite full brake application, the car did not stop as expected. The Automatic Emergency Braking (AEB) and Forward Collision Alert (FCA) systems did not activate. No alerts or braking assistance occurred, even though these safety features were enabled. Her passenger witnessed her screaming that the brakes were not stopping the car. The crash caused front bumper damage, and a police report was filed. Investigation & GM's Response GM inspected the vehicle but refuses to provide testing details. …
Related recalls
Back over prevention › Software
General Motors, LLC (GM) is recalling certain 2024 Lyriq vehicles. The rearview camera screen may turn gray with no camera image.
Remedy: The vehicle cockpit unit (VCU) software will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed March 16, 2026.
Collision Avoidance complaints in other Lyriq years
Frequently asked questions
How common are collision avoidance problems on the 2024 Cadillac Lyriq?
NHTSA has 32 complaints about the driver assistance of the 2024 Cadillac Lyriq, 36% of the model year's 89 complaints. The component named most often is automatic emergency braking (21 mentions).
Is there a recall for 2024 Cadillac Lyriq collision avoidance problems?
Yes — NHTSA recall 26V-082 (software, Feb 12, 2026). Recall repairs are free at authorized dealers.
At what mileage do 2024 Cadillac Lyriq collision avoidance problems start?
Half of the complaints with a recorded mileage happened before about 18,000 miles, and 100% before 25,000 miles.
Is it dangerous?
Owners linked 11 crashes, 0 fires and 3 injuries to driver assistance problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.