2024 CHEVROLET TAHOE Electrical System Problems

Unknown but there was many lights on at the time of brake failure. I was driving home from Florida to NJ with my four young children in the vehicle on a 65mph highway when all these lights came on, the brakes completely stopped working and it told me it was reducing speed to 62mph for safety because the brakes were failed. It also stated service svc. By the grace of god I was able to off-road it a bit to get it to slow down to a stop. The second time it happened was in my driveway parked. Inbetween the two incidents I brought my vehicle for regular service and asked them to look at the brakes again for me as this is a major safety concern as well as my transmission slipping and they complete refused and only changed my oil.

The contact owns a 2024 Chevrolet Tahoe. The contact stated that while her husband was driving at an undisclosed speed, the vehicle stopped at a traffic light, and the engine unexpectedly shut off while the brake pedal was depressed. The transmission inadvertently shifted to neutral(N). The message to "Push Start to Start Engine" was displayed. The contact's husband pressed the Auto Start/Stop button, but the engine failed to start. The contact's husband then shifted the transmission to park (P), pressed the Auto Start/Stop button again, and the engine restarted. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 700.

Mileage: 700

On one morning w/20 something temperature, Tahoe started and immediately shut down. When restarted, multiple malfunction lights were lit: engine, ABS/brake, steering column, traction control, etc. Reached Onstar for advice to see if Tahoe was drive-able, but only got confirmation of system malfunctions and offered roadside assistance but declined since at home and would call back if needed. About an hour later and several restarts, all malfunction lights finally cleared except engine light, which stayed on for another day or so. Tahoe drove okay during engine light on.

vehicle has been doing this since February 2024 but dealer would state the recall would fix the issue. February 18 2025 vehicle claimed to have a dead battery. Took to dealer once it was jumped they kept till February 28,2025 when I picked up vehicle less than 5 mile down the road vehicle shut off and luckily I was at a red light and the vehicle behind was not following close. The vehicle had just left dealership. Once i was able to get the vehicle back on it stated I needed to service the transmission. Took vehicle back to dealership and then they kept it to check. March 4,2025 I was told to pick up vehicle I did and it seemed well drove 6 miles to destination. Parked it and went inside came back out an hour later and vehicle was dead again. Had to call tow truck to pick me up and they left vehicle at dealer and it has been there since and they are stating it is in line.

Key fob does not work even when inside vehicle or either cup holders. I was able to use auto start a few times but having both keys inside or using one or the other spare or primary causes the no key fob message. The only thing that has worked has been to open hood, disconnect primary battery terminal and wait ten minutes. Afterwards, everything seems to be working. I refuse to believe that a brand new vehicle has to be operated in such a manner. I’m a nurse who works 15 hours a day and all I wanted was to go home to my family but now I’m stuck at work waiting for my husband to come disconnect my tahoes battery for ten mins before it hopefully works again.

7 weeks after purchase of my new 2024 Tahoe the check engine light came on, showing safety restraint system compromised and then I lost all sound and entertainment features. 4 months later and my car is still sitting in parts at the dealership because wiring harness is on back order.

Audible warnings for turn signals, Blind Spot monitoring and lane monitoring periodically quits along with all sound from radio and Bluetooth system. Haptic feedback on lane change seems to not function at this time as well. Warning lights function. This has occurred 7 times since Oct 22 2024 when the vehicle was purchased. MFG has been unable to repair.

After start up, there is no audio coming from the vehicle. No audio from entertainment system, no audio from turn signal and no audio from fasten seat belt "chime". Restarting vehicle does not change the outcomes, initially. Exiting the vehicle and restarting about 10 minutes later, all audio returns, including entertainment sytem, audible turn signal indicator and fasten seat belt chime (if seat belt is not engaged). This has occured on several occasions since about 11/1/2024.

While driving at night in the rain. The front windshield wipers paused in an upright position for 3-5 seconds and all exterior illumination/lighting went out. They all came back momentarily.

I was approaching an intersection to make a left turn from a two-way highway with a posted speed limit of 65mph. Another vehicle had approached the same intersection in the other direction and stopped to make a left turn, so both vehicles were making left turns in opposite directions, but the vehicle opposite my vehicle had to stop because I was approaching and signaling to turn and another vehicle, towing a trailer, was following behind my vehicle. As I approached the intersection, I began to turn the wheel and my vehicle shutdown and stopped in the lane, causing the vehicle behind me to take evasive action to avoid colliding into the rear of my vehicle. I received an alert on my dashboard to start the engine, which I did, but it didn't accelerate. I received another alert on the dash to start the engine and to place it in drive. After performing the actions, the vehicle felt as though it had lost power and I slowly drifted off the side of the road where I shut the vehicle off and restarted it again without further issues. The issue has not been reproduced and the dealership I purchased the vehicle from could not confirm any known issues. The vehicle has not been inspected due to the dealership not having any insight into any known issues that may have caused the incident. No other warning lights were displayed prior to the incident.