2024 Cadillac Lyriq

Continuing problem with both front and rear emergency braking. Primarily when it is raining and vehicle is put in reverse violent and unexpected emergency braking will occur for no apparent reason. This will happen several times. Also, when backing out of driveway on a slant, rear emergency braking seems to sense the street and brakes are applied violently. This situation has also happened going into driveway on a slant for front emergency braking. Have informed the dealer several times of this problem and they say that Cadillac has not fix. Very distressing and dangerous for whip lash of adults and children.

I have had two incidents with the automatic braking system occur in a short period of time. The Lyriq is not a car that I drive very often so when the incidents occurred in the last 2 of the 3 times of driving the car it makes me scared to drive the car again. The first incident occurred while driving at approximately 35 mph. The road I was on had 4 lanes with a turn lane in the middle dividing the 4 lanes with 2 lanes on each side of the turn lane. The road carries moderately heavy traffic as it has many businesses (fast food restaurants, strip malls, etc.) I was driving in the left lane when a truck in the on coming traffic entered the middle turn lane and a vehicle ahead of me entered the lane to the right of me. Neither vehicle crossed the line of the lane I was in. This is normal traffic for the type of road I was on. I know there have been reports of rain interfering with sensors in the past, but this day was clear. My vehicle flashed a red collision warning and engaged the automatic braking system. This was scary as heck. It was very jarring to me and my passenger. Next incident I was parking along a curb. So this time I was driving under 10 mph. I was backing up and there was a hand rail along on a walkway on the curb. There was no way I would hit the railing as it was several feet from the roadway. There was no warning in my car when it engaged the automatic braking system. Even though I wasn’t traveling very fast it was very jarring and my neck was still hurting from the last incident when it engaged the automatic braking. When the car engages the automatic braking system it sounds as though it has hit something or someone has hit you. It’s very confusing. I reported previous incidents to my dealer and they said that the sensors were sensitive and they supposedly did some sort of fix, but frankly I’m concerned what could happen as these incidents have quite seriously been a pain in the neck for me.

Vehicle engage emergency stop in forward direction for no apparent reason. Leaving dead stop 2nd car at traffic signal. Huge problem as may cause rear end collision. I have disengaged all auto brake features. Had previously already disabled reverse auto braking feature. I was at a residential intersection. Single lane each direction with left turn lane. I was the 2nd vehicle in line. There was a crosswalk however there were no pedestrians, bicycles, etc. in the crosswalk or on any sidewalks of roadways. The left turn green arrow illuminated and the vehicle in front began turning. I began to follow and reached no more than 5-10 mph when "bang", the emergency stop engaged. I actually thought I hit a pole or object. Terrifying for my wife in the passenger seat also. The vehicle behind us was able to stop in time, this time. However, drivers do not expect the vehicle in front of them to begin moving the emergency brake for no reason. This is a dangerous defect which must be addressed.

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.

The contact owns a 2024 Cadillac Lyriq. The contact stated that while reversing from the driveway, the brake pedal was applied without driver input. The contact stated that the vehicle detected an unknown object, causing the brakes to be applied, but the contact determined that there was no object behind the vehicle. While driving at 50–60 MPH, the brakes were applied without application. There were unknown warning lights illuminated. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The computer was reset. The vehicle was not repaired. The manufacturer was contacted, but further assistance was not provided. The failure mileage was approximately 100.

I was driving the car on the turnpike and out of nowhere the rear collision system went offline and the automatic breaking was triggered while I was going 70 mph in rush hour. The brakes started to smoke and smell and the the warning of ‘breaks overheating. do not drive. call service’ happened. I proceeded to narrowly avoid many cars on the road by having to cross three lanes of traffic over to the shoulder and the car was fully smoking, I quickly turned it off I got out and stepped away. After some time when I felt safe returning to the vehicle I turned it back on and was still showing breaks were overheated message and then was forced to get the car towed and take an Uber home. The vehicle is only 2 months old with ~3300 miles on it. The vehicle is currently sitting at the closest dealership to the event and they are unable to work on it due to a lack of EV service provided there and they told me they are unable to have it moved to the dealership I purchased it at.

The automatic collision system braking is engaging when the vehicle is in reverse and while it is raining. This occurs multiple times while trying to back the vehicle up during rain. This is dangerous for the passengers since they are abruptly thrown backwards without warning. The vehicle must be placed in "park" and then "reverse" multiple times until the collision braking stops malfunctioning.