Seven problems related to electrical system have been reported for the 2023 Chevrolet Blazer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2023 Chevrolet Blazer based on all problems reported for the 2023 Blazer.
"I am the owner of a 2023 Chevrolet Blazer rs. The digital odometer and speedometer screen intermittently crashes and goes completely black for 15 to 20 seconds while the vehicle is in motion on public roads. This creates an immediate safety hazard as I am left with zero knowledge of my current speed. General motors has acknowledged this specific software stability bug under technical service bulletin 22-na-023 but refuses to fix the issue due to the vehicle being 9 days past its 3-year calendar warranty, despite having only 32,400 miles. " I contacted your gm agent @ 800-222-1020 and was told its out of warranty sorry, that is horrible service espeacially for a safety issue and a 55,000 vechicle that only has 32,400 miles.
The vehicle has turned off twice while driving. Endangering the safety of everyone in the vehicle.
My bright lights do not go off when oncoming vehicles or vehicles in front of me are close and when they do dim they go on and off. People flash their brights at me causing me not to be able to sleep and this happens even when they turned off of auto. Another item of concern is that the car would lock and unlock and the interior lights would go on and off. This was fixed but it was a line under the front that was not soldered together at the manufacturer is what the chevy dealership stated.
Thermostat not working. Causing fan to run as if the vehicle is overheating.
2023 Chevrolet Blazer 42334 miles 9/18/2026 component failed: 2023 Blazer rs eboost system. Integrated electronic brake booster / master cylinder / brake pedal sensor assembly. Component available for inspection. Same left front corner had frozen caliper frc13443c at 37,940 miles June 2025 to pass inspection, sold as certified at 38,038 miles. Vehicle currently 42,334 miles. Safety risk: hard brake pedal, loss of brake assist, increased stopping distance. Same condition reported before front collision August 2025. Left front remains hot. Driver scared to drive. Nhtsa ea26006 open for eboost 2023 Blazer describes same failure - spindle fracture, loss of abs/stability, 21 crashes. Reproduced/confirmed: yes. Independent shop a+ automotive ro 82780 sept 15 2026 confirmed hard pedal remains after full bleed, measured 8mm front/rear. Second shop sept 17 2026 confirmed system is all-wire eboost, no vacuums, no vacuum leaks possible. Dealer sept 16-17 2026 stated "checked vacuum on the brakes no leaks" and "pedal fine braking normal" on eboost vehicle that has no vacuum. Inspected by others: manufacturer not yet. Dealer inspection 09/16-17/26 misdiagnosed as vacuum issue. Independent inspections a+ automotive 09/15 and 09/17/26 confirmed eboost no vacuums and hard pedal remains. Warning lamps/messages: no warning lamps. No abs light. Symptom is hard pedal that feels like manual brakes without assist. Also left front heat. First appeared June 2025 as frozen left front caliper, returned as hard pedal after bleed. Dealer claimed normal operation.
I was turning left at an intersection on 5/5/23 and the brakes locked up for no reason. As I entered the intersection the vehicle flashed the automatic emergency braking lights and locked up the brakes as I turned left. The lane in front of me was perfectly clear and the sudden stop fortunately didn't cause the vehicle behind me to rear end me. My wife and I were totally shocked and confused why this happened when there was clearly no obstruction ahead of us or reason to lockup the brakes. This is an absolute flaw and could have caused an accident and/or injury. This adas system is very sensitive in my opinion and constantly goes off on parked cars when driving in my subdivision. This I guess is unavoidable but the incident that happened is not explainable or acceptable!.
Since I’ve got the vehicle I experienced issues with it not going in drive or reverse sporadically. I was air to obtain this in video and show it to the dealer for the first time Dec 2023. In addition and overtime it’s seems this issue may go hand and hand with the lane assist issue that had been known on chevy models where they either don’t work of they don’t recognize the lanes correctly and they pull although your in the correct lane. I have specifically taken the car in on 3 or more occasions about it disengaging and not driving forward or backwards. More recently it started to seem as if while u was actually driving the car did not want to accelerate forward and then while trying to accelerate the steering wheel pulled and caused the car to spin out of control on the freeway. The car was just in the shop from end of April till may and the issues are unable to be duplicated so I just keep getting pushed off with the car. The car radio constantly malfunctions and glitches I several different forms, black screen no sound or not allow bluetooth capabilities. My most main concern is this power train issue and me getting stuck with a car that is going to be it of warranty and the issue has never been resolved even though I have showed the dealership a live video of the occurring issue that there is something wrong here.
| Electrical System problems | |
| Instrument Panel Speedometer/odometer problems |