2023 Chevrolet Suburban Electrical System Problems

Car entertainment screen shot down, next day car completely dead, had to get a booster, now the engine sign is on, and car has only 33,000 miles on it

The lights flash high beam, low beam, high beam, low beam, while I’m driving. Nothing seems to keep them from doing that.

Since purchasing the car in March 2023, the battery has died 5-7 times. We contacted our dealer and they claimed nothing wrong and the battery was fine. We have contacted them about this issue and there is no fix. They performed an update in June 2025 which was supposed to fix it but it didn’t. The latest it has died is November 25. There was nothing left on for the battery to die. I have 4 children and it’s starting to get very cold outside. I live in a rural area with poor cell reception. I am worried I’ll be stranded somewhere with a new baby and 3 younger children.

My vehicle suddenly stalled while driving. I later replaced the battery and discovered the telecom module was damaged, making the OnStar system inoperable. GM disagreed with my warranty claim and required me to replace the module at my own expense. I discovered the same issue is common in various GM models from 2023-2025. My Suburban and Yukon both have the same issue, making them defective. However, GM will not provide a free replacement under warranty.

Issue: The vehicle intermittently displays a “Key Not Found” or “No Key Detected” message on the dash and refuses to start, despite both original factory-issued key fobs being present and having fresh batteries. The issue began in summer 2023 and has progressively worsened. The vehicle has stranded our family multiple times, sometimes requiring a tow, family impact, missed obligations. Luckily for all urgent needs like trips to the ER or Urgent care, we were able to use our other vehicle, but we no longer have that vehicle and it is important that our sole vehicle be a reliable one. Impact: •Two emergency room visits and multiple urgent pediatric appointments affected •Forced to rely on one family vehicle for months •Paid for tow and fob batteries •Multiple instances of no rental coverage •GM and dealers often declined documentation or action due to the issue being “intermittent” ⸻ Request: We believe there is a systemic defect in the Suburban’s keyless entry/ignition system (likely receiver or antenna module). We request that NHTSA investigate and that GM be required to issue a recall or permanent repair for affected models. This issue poses a safety concern and has created financial and logistical hardship for our family.

The contact owns a 2023 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle lost electrical power, failing to display any information on the instrument panel; however, the vehicle still had motive power. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the instrument panel control module needed to be reset. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 2,000.

While driving on the highway at night during rainy conditions the wipers stopped in the up position, and at the same time, the headlights turned off. After a few seconds they resumed normal operation. My headlights were in the auto position and my wipers were also in the automatic setting. Being as that I was on a highway at night, in the rain, and going approximately 65mph surrounded by traffic, this was an extremely dangerous situation to be in. Without headlights and windshield wipers, my windshield was immediately obstructed and I was unable to see the road without headlights. More so, other traffic might have had trouble seeing my vehicle. This problem has not been replicated by myself or a dealer. It has been random in nature. When the incident happened, there were no warning lights on the gauge cluster or anything else inside the vehicle that seemed to be affected.

While driving the vehicle on an extended road trip trip on the interstate the vehicle randomly shut off while driving at highway speeds. When the vehicle turned off all interior and exterior lights did not work. The engine turned off. In order to begin driving again the vehicle needed to be restarted. This issue happened 3 separate times. In between, the vehicle has been turned off. It is a safety issue to have your vehicle turn off randomly while driving at any speed. The issue has not been reproduced by the dealer. The vehicle has been seen by the dealer and stated "they are unable to find any issue" There was not indication before or after the 3 events that would indicate issue.

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.

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.