2023 Chevrolet Suburban Driver assistance Problems

My 2023 Chevrolet Suburban developed a "Service Driver Assist System" warning, and both the front and rear parking assistance systems stopped functioning. When approaching objects at low speeds in Drive or Reverse, the vehicle did not provide the expected parking distance warnings. I took the vehicle to an authorized Chevrolet dealership on October 22, 2026. The dealership initially attributed the problem to a low 12-volt battery and recommended replacing it. I authorized installation of a new ACDelco AGM battery. The dealer tested the charging system at 13.5 volts. However, after the battery replacement, the "Service Driver Assist System" warning remained, and the parking sensors still did not function. The service advisor initially indicated that the warning might take 12–24 hours to disappear. I returned to the dealership because the problem persisted after waited for a weekend. The parking assistance system remains inoperative, reducing the driver's ability to receive proximity warnings when maneuvering or parking near obstacles, pedestrians, or other vehicles. I am reporting this incident because the driver-assistance warning and parking sensor failure persisted after the initial repair. The underlying cause of the sensor damage has not been established.

NHTSA ID

11774423

Incident

Oct 1, 2026

As I was driving on the Highway. My speed was approximately 65 MPH. The suburban slowed itself down and flashed on the driver screen "slow down/reduced acceleration". I was driving with my family in the car on the highway. The car forcing a slow down like that could have caused an accident that could have killed my 3 year old or my 9 year old. We drove the car home in fear after reading online that the rear tires could force stop on us. We immediately did an at home diagnostic on the vehicle and were given the following codes: P0700, P0747. We have taken the vehicle to the nearest Chevrolet Dealership and had it diagnosed. We were called today and told that the valve body needs replacement. There were no prior warnings or other symptoms of the problem prior to the failure. We've had it serviced at this dealership, had any recalls checked at this dealership and no warnings had been provided.

NHTSA ID

11771305

Incident

Oct 11, 2026

I was driving south on Highway 395 with 2 of my friends on our way home from vacation, which is a 2 lane road in the mountains. About 45 miles north of Victorville, CA. As I was accelerating, my vehicle all of a sudden dropped adaptive cruise control, the engine light started blinking, traction control errored, and I got a service ESC message on the dash. I let off the gas a little and everything seemed fine but when I reapplied pressure to the gas pedal the engine started making a loud ticking sound and had barely any propulsion. I had to keep going and was luckily able to find a safe place to pull off the road (which had many blind curves and minimal shoulder space along the highway). Had there not been a safe place to pull over before the engine completely died we could have been hit by any of the many semi trucks traveling on that road. After waiting 2 hours for a tow truck and having the vehicle towed to the Chevrolet dealer in Victorville, I was provided a small SUV rental vehicle to drive the remaining 150 miles home while I left my 2023 Suburban High Country for them to disassemble. When I called the next day they verified there was a Rod Bearing Failure inside the engine and they were submitting to GM for engine replacement. There were NO symptoms before the engine failure happened.

NHTSA ID

11770951

Incident

Oct 12, 2026

My 2023 Chevy Sububan Z71 wipers sometimes does not working when I driving on raining days since I bought it new and took it to dealers many times can not fix it

NHTSA ID

11681210

Incident

May 11, 2023

Automatic Emergency Braking system activated at ~77mph. Essentially I had started braking appropriately and at about the same time the AEB system seemed to conclude more breaking was needed. This led to brief loss of vehicle control when brakes COMPLETELY LOCKED at high rate of speed ~77mph. According to vehicle manual this system should not activate at speed great than 50mph (photo attached). This is dangerous because i could have lost control and/or someone behind me could smash into me. My vehicle does not have adaptive cruise. Vehicle and other systems otherwise work perfectly. As a side note the extreme brake application at high speed caused cargo within the vehicle to slam forward and destroy the windshield, in addition to being a scary event.

NHTSA ID

11582408

Incident

Oct 22, 2023

On Star module failure. The module controls many different safety features and it has failed and has been on a backorder for months creating a safety issue every day.

NHTSA ID

11557477

Incident

Jun 1, 2023

The contact owns a 2023 Chevrolet Suburban. The contact stated while driving at an undisclosed speed, the vehicle experienced phantom braking. Additionally, the windshield wipers were inoperable. On another occasion, while driving at approximately 70 MPH, the vehicle experienced phantom braking. There was no warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed that there was a loss of communication with the control module, steering, gateway module, engine, body control module, and brakes. The dealer retrieved DTC codes: U0101, U0131, U0146, U152B, U160F, and U1561. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 15,000.

NHTSA ID

11546032

Incident

Jun 15, 2023

Mileage

15,000 mi

There were no accidents or near accidents but the computer system was spitting out different problems and telling me that different system were needing service such as the ESC system, the steering wheel column l, collision traction , etc plus the engine light came on. Thus occurred on the 20th of June. I took it in for service and they said they fixed the problem but then while coming home on the 22nd the system started acting up again. Took it back to the dealership and they said the computer lost communication. They had to keep my vehicle because they cannot figure out jow to adjust the computer harness and why I am continuing to get the error codes. This vehicle is only 4 months old (3/11/23). I am concerned that could be a major problem if it cannot be fixed.

NHTSA ID

11528662

Incident

Jun 20, 2023

Multiple time the full safety camera system has failed. The front rear and 360 degree view camera have intermittently failed multiple times. Restarting the vehicle has had no effect on restoring functionality of the very vital rear back up camera, front camera, parking and pedestrian sensors. This is a random occurrence, has happened at least 5 separate occasions since purchase, and occurs intermittently. Date is the last time this issue occurred.

NHTSA ID

11495507

Incident

Nov 26, 2022