2022 Chevrolet Blazer electrical problems

Filed Oct 20, 2026 · Electrical, Engine · TX

1. Vehicle completely shut off at a stoplight during the nighttime. The vehicle lost all power including lights, hazard lights, horn and electrical system. Would not start back up for several minutes while sitting in the middle of the highway during the nighttime, creating an immediate safety hazard in traffic. Vehicle self-corrected after a few minutes.

Filed Oct 12, 2026 · Brakes, Electrical · GA

I had no warning or indication whatsoever that my battery was going bad. I was at a major red light and my car shut down, then started back on its on with the entire panel lite up. The light changed and when I tried to turn I had hardly any stirring and almost no brakes. I almost ran into the car in front of me. I was able to get it into a parking spot and then it still gave me no light or notice of a battery issue. Because it had a recall on it that was repaired four days prior I had it towed to the dealership. They told me it was the battery but even when I picked up the car (for AAA to install the battery), it still showed 13.6% power on a 14 volt battery. This issue almost caused me to have an accident and caused me to waste $168 for a tow.

Filed Oct 9, 2026 · Electrical · 83,000 miles · CT

The contact owns a 2022 Chevrolet Blazer. The contact stated that upon coming to a complete stop, the vehicle shut off. After several attempts, the vehicle was restarted, and the contact continued to drive. The vehicle was taken to an independent mechanic, where it was diagnosed, and the contact was advised that the failure was not duplicated. The vehicle was taken to a dealer where it was diagnosed, and the contact was informed that the failure was not duplicated; however, the dealer suggested that the fuel pump driver control module be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 83,000.

Filed Sep 30, 2026 · Brakes, Electrical · MI

I am reporting a severe powertrain safety hazard involving my 2022 Chevrolet Blazer at approximately 69,000 miles. The vehicle's 9-speed transmission is experiencing a critical internal hydraulic failure that causes unpredictable and violent lurching. Specifically, there is a severe delayed engagement when shifting into Reverse. The engine revs without moving until the hydraulic pressure suddenly spikes, causing the vehicle to violently slam backwards and catch the gear. Furthermore, the transmission exhibits harsh and slipping shifts while driving forward, specifically violently jerking during the 2nd-to-3rd gear upshift. ​These exact symptoms align with widely documented hydraulic control and valve body defects in the GM 9T50/9T65 transmissions, which are known to cause harsh shifts, delayed engagement, and flaring between gears. Concurrent with these transmission failures, the ABS warning light illuminated. An independent shop misdiagnosed the severe drivability issue as a standard ABS fault, while a local Chevrolet dealership denied Goodwill assistance despite this being a premature internal transmission failure. ​This creates a severe safety hazard. The unpredictable lurching in Reverse endangers pedestrians and other vehicles in parking lots. Additionally, the violent shifting at speed creates a high risk of sudden internal component failure and a complete loss of propulsion while driving in active traffic.

Filed Sep 18, 2026 · Electrical · 12,000 miles · IA

The contact owns a 2022 Chevrolet Blazer. The contact stated that after the dealer had performed a software update under TSB Number: N212355740, the computer blew up. The contact was informed of the failure, provided a loaner vehicle, and advised that the manufacturer was notified of the failure by phone. The dealer was awaiting a callback from the manufacturer before performing further repairs. The contact expressed concerns and dissatisfaction that the dealer had recently confirmed the vehicle was covered under the TSB, but the manufacturer had failed to send a notification of the TSB. The failure mileage was approximately 12,000.

Filed Sep 1, 2026 · Electrical, Steering · NC

"Steering Assist is Reduced, Drive With Care" showed up on the dashboard. The temperature gauge dropped to dead cold. Once the car was parked and cut off, the fan still kept running for 5 minutes. From my research it seems these are the signs of a thermostat being stuck open. It also seems this is a very common problem with this car, according to the internet. This vehicle has around 70K miles. There were no other issues prior to this failure.

Filed Aug 14, 2026 · Brakes, Electrical · PA

My 2022 Chevrolet Blazer abruptly Shut down all power for about five seconds while I was stopped at a red light. The vehicle restarted after I pressed the push-button ignition, but the dashboard displayed a brake system error warning with no explanation of the cause or instructions for next steps. No other warning lights preceded the shutdown. The vehicle appeared to resume normal operation after restart, but the brake system warning remained. This appears consistent with complaints filed by other 2022 Blazer owners describing simultaneous electrical and brake system failures.

Filed Aug 10, 2026 · Brakes, Electrical · AL

Intermittent electrical defects are beginning to occur that impact the power steering or power brakes. After starting the vehicle, there are times either the power steering or the power brakes do not function. When the braking defect occurs, the engine warning lamp is displayed and indicates brake system control module. Sudden switch to manual steering or manual braking are a safety hazard. A couple ignition recycles eventually corrects the electrical defect and restores the vehicle to normal operations. Vehicle has been dropped off at dealership for warranty repair.

Filed Aug 8, 2026 · Driver assistance, Electrical · FL

My infotainment system has completely blacked out. I have no navigation, no rear view camera or warning signals. I have no phone and no SOS 🆘 emergency calls. I have no music no lane merging alerts. My charging station does not work in the front of the vehicle.

Filed Jun 14, 2026 · Electrical, Engine · FL

BROUGHT MY CAR TO CHEVROLET CENTER IN WINTER HAVEN FLORIDA BECAUSE I HAD 2 DIAGNOSTIC CODES SHOW UP WITH A CHECK ENGINE LIGHT, THE CODES WERE (U1345: Indicates a communication fault on the LIN (Local Interconnect Network) Bus, usually tied to modules like the active grille shutters, cooling fans, or charge air cooler (CAC) pump.U0632: Indicates lost communication specifically with Cooling Fan 1.) THE DEALERSHIP TOLD ME THEY DIDN'T FIND ANY CODES IN THE SYSTEM AND THEY TRIED TO CHARGE ME $165 FOR A DIAGNOSTIC FEE. RIGHT AFTER I LEFT THE DEALERSHIP I WAS HAVING THE SAME CODES POP UP, WITH THE CHECK ENGINE LIGHT AND MY CAR WAS OVERHEATING. CHEVROLETS ECM/PCM WARRANTY IS 8 YEARS OR 80,000 MILES.