There are 4 owner-reported electrical system complaints for the 2024 Chevrolet Suburbanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The engine light comes on and then the rpm's drop to 35 and a notification comes up that says "reduced acceleration. driving with caution". If I stop and turn of the vehicle and restart the rpm's will be better but the truck still seems to have a difficult time increasing in rpm's and accelerating gears. It's incredibly dangerous as if I'm driving at a substantial speed on the highway or freeway and it drops rmp's rapidly I'm likely to be in an accident which could be detrimental. The dealer has had my vehicle on two separate occassions. The most recent time they've had it for 5 days and still do not know what's wrong with it. The engine light will not turn off.
I have had my cruise control set and my car will slam on the brakes with no vehicles in front of my car or on each side. This has happened multiple times, it doesn’t matter if I am going 40MPH or 60+MPH. I have taken it in and they say there is nothing they can do for the issue. I’m worried for the safety of myself, my family, and my unborn child. As well as any cars around (behind me potentially) when this happens. I do not want to unintentionally cause an accident.
The contact owns a 2024 Chevrolet Suburban. The contact stated that while towing a trailer, the message "Trailer Brakes Disconnected" was displayed. Due to the failure, the trailer brakes locked up and the trailer came to an abrupt and rough stop. Upon investigation, the contact discovered Technical Service Bulletin: 23-NA-149; which was related to the solar panel battery charger or generator on the trailer. The trailer battery was fully charged and had a higher charge than the battery needed and could back feed into the trailer brake power module and cause it to shut down. The dealer was notified of the failure, and the contact was informed that the vehicle was not under recall. The manufacturer was also notified of the failure, and the contact was referred to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was approximately 5,000.
The check engine light came on at 14k miles indicating there was an emissions error. The brakes squeal and have had to be replaced 3 times since the original purchase in March of 2024. After the third replacement of brakes they still squeal. Even if the car is not braking it makes the noise. The radio shuts on and off constantly. Chevy reported they are aware of the issue but there is no fix at this time. The dealerships reset the radio but the issue persists. I’ve had to park the car because I’m afraid the brake issue is much more than they’re willing to admit.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026