2021 Chevrolet Silverado 1500 electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 17, 2026PAElectrical SystemEngineTransmission & Drivetrain

   2021 silverado engine failure. Yes it was inspected by a dealership and my extended warranty company and serviced by the dealership. Back on August 5th I experienced a misfire cylinder 3 and felt loss of power. On August 7th the dealership diagnosed both camshafts, 1 lifter, 1 valve, and 1 fuel injector was damaged and never received at warning lights or messages on the dashboard. I was without the vehicle for 39 days and within 10 hrs after picking up the truck i got an…

   NHTSA complaint #11764947 · source
2. Filed Sep 9, 2026FLElectrical SystemEngineFuel, Hybrid & EV Propulsion

   My 2021 Chevrolet Silverado 1500 RST with the 6.2L engine experienced an engine seizure. The engine was replaced by a Chevrolet dealership under a GM safety recall. Immediately after picking up the vehicle following the recall engine replacement, the truck stalled while still in the Chevrolet dealership parking lot. There was no warning before this first stall. We continued our trip because we did not realize at the time that the stall could indicate a problem following the…

   NHTSA complaint #11763216 · source
3. Filed Sep 5, 2026KYElectrical SystemOther / Unknown

   The automatic power-unlatching tailgate assembly failed. The tailgate unlatches, opens, and cycles closed completely on its own while the vehicle is in motion and driving on public roads and when the gear shifts from drive to park and park to drive. The vehicle and the tailgate assembly are fully available for inspection upon request. The tailgate opening unpredictably while driving at road speeds creates an extreme safety hazard. It risks cargo flying out into traffic,…

   NHTSA complaint #11762348 · source
4. Filed Aug 28, 2026OHElectrical System

   The check engine light came on and my engine would stall sometimes, it would stall at start up so no safety issue. I took my truck to the dealer a week later where they said a wire was corroded from rubbing on something causing the issues and that it was a common issue.

   NHTSA complaint #11760302 · source
5. Filed Aug 21, 2026TXElectrical SystemOther / UnknownSteering

   When I put the pickup in park, I get a message that states "Shift to Park". The pickup is completely stopped, the gear shift indicator is in "P". When I get out of the vehicle I get two loud two-horn alerts indicating that the pickup in not in Park, when in fact it is. Doing some research, I have seen that this is a common problem for GM vehicles. The console shift vehicles are actually involved in a class action lawsuit, while the steering column shift vehicles are not.

   NHTSA complaint #11758467 · source
6. Filed Aug 16, 2026TXElectrical System

   The key will not release from the ignition when in park. This is all over the internet as a very big problem. People are bypassing the ignition interlock so they don’t have to leave the vehicle unattended with the key in the ignition inviting theft. Therefore while driving the ignition could be cut off and the key can come out. This is a huge safety issue. This will kill people.

   NHTSA complaint #11757276 · source
7. Filed Jul 15, 2026CAElectrical System

   May 28 ,2026 I left work to get some lunch And when I went back inside my vehicle I turned it on and the check engine light came On and on the dash it was telling me to park the truck and it wasn’t going more then 45mph so I called my dealer ship simspson Chevrolet in garden grove and they told me they couldn’t do anything because it wasn’t under warranty so I had to take my truck to a near by auto shop because my truck is my daily and I use to get to work so the. The body…

   NHTSA complaint #11750532 · source
8. Filed Jul 14, 2026TNElectrical SystemEngine

   Loss of engine power while merging or passing traffic. * Reduced acceleration making it difficult to enter highways safely. * Engine overheating if the active grille shutters fail in the closed position. * Unexpected limp mode causing sudden speed reduction in traffic. * Increased risk of a rear-end collision due to loss of power or reduced speed. * Check engine light and warning messages distracting the driver. * Vehicle stalling while driving or at intersections. * Reduced…

   NHTSA complaint #11750443 · source
9. Filed Jul 14, 2026110,881 miKSBrakesElectrical System

   The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the message that the rear seats were occupied and that the windows were rolled down was displayed, which required the contact to press the OK button. The vehicle was taken to the dealer where it was purchased, but no assistance was provided. The traction control and the ABS warning lights were illuminated while depressing the brake pedal. Additionally, the cruise…

   NHTSA complaint #11750243 · source
10. Filed Jul 2, 2026FLElectrical System

    Vehicle experienced sudden power steering failure and needed to be towed. A list of preceding error codes presented upon diagnostic review including power steering motor circuit, control module power circuit low input/low voltage, steering failure mitigation, power steering malfunction, lost communication with power steering control module to name a few. Dealership traced it back to a known GM part issue with the body to chassis ground strap identified in GM consumer…

    NHTSA complaint #11748065 · source
11. Filed Jun 21, 2026TXElectrical SystemEngine

    Check engine light flashes when pulling a load and accelerating above 50mph. Check engine light code is PO300 Random multiple misfires. Took it to the shop and there we’re currently no active misfires.

    NHTSA complaint #11745433 · source
12. Filed Jun 8, 2026MIElectrical SystemEngineTransmission & Drivetrain

    When i first purchased the vehicle off the lot a few years back (its a 21, so probably in 22?) Brand new off the lot minimal miles. Within the first few months we started having issues with the power wanting to shift down. We took it in, the dealership found nothing wrong with it and cleared the codes. This happened a few more times. The last 2 times I took it in. They mentioned that there were recalls on it and could possibly be causing the issue. Took care of that (last…

    NHTSA complaint #11742660 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology