This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
full bulletin at NHTSA ↗2021 Chevrolet Camaro electrical problems
moderate Owners of the 2021 Chevrolet Camaro have filed 3 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of October 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
| Model year | electrical complaints |
|---|---|
| 2017 Camaro | 19 |
| 2018 Camaro | 14 |
| 2019 Camaro | 6 |
| 2020 Camaro | 6 |
| 2021 Camaro (this page) | 3 |
Of the 12 model years of Chevrolet Camaro we track for electrical problems, this one has the fewest owner complaints on file (3).
No new NHTSA electrical complaint has been filed on this vehicle in over 3 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
full bulletin at NHTSA ↗This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
full bulletin at NHTSA ↗The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
When operating the car it began to slow down. Once I approached a stop the car engine shut off. After a few minutes I was able to start again. After I drove through the light and proceeded home about 2 miles away from the initial stop, the car shut off again. It was sent to vandergriff Chevrolet in arlington, texas and the issue they said had something to do with a cam magnet- this was nov 2021.…
Rear view mirror camera will not function. This camera is used to give one a better view of what is behind them.it was working great one day and then the next time I drove the car it would not funtion. Checked fuses and they were good.
Tl* the contact owns a 2021 Chevrolet camaro equipped with the hill start assist feature. The contact stated that the vehicle had a manual transmission. While stopped on an incline with the brake pedal and clutch pedal depressed, the hill start assist feature activated, locking the transmission to prevent the vehicle from rolling backwards. The contact stated that while attempting to move from…
Common questions
How serious is the electrical problem on the 2021 Chevrolet Camaro?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.