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 ↗2020 Chevrolet Spark electrical problems
severe 6 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
When does it fail?
Of the 6 electrical complaints filed for the 2020 Chevrolet Spark, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
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.
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 ↗This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
full bulletin at NHTSA ↗This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 6 most recent
The contact owns a 2020 Chevrolet Spark. The contact stated that while driving at 15 MPH and depressing the accelerator pedal, the vehicle lost motive power. The contact exited the vehicle, unlatched the hood, and wiggled the battery cable, and the vehicle worked as intended. No warning light was illuminated. An independent mechanic and the dealer were contacted. The vehicle was taken to the…
Our car broke down on 07/08/2021 and went into the shop on 07/12/2021. It was eventually determined the engine had to be replaced. The car was in the shop until 09/02/2021. The following day during a test drive I noticed some minor, unusual response, almost unnoticeable, from the brakes, but there were no warning lights or messages. I connected a code reader and received the following codes:…
The contact owns a 2020 Chevrolet Spark. The contact stated that after the vehicle was idle at a red light, while attempting to accelerate, the vehicle stalled. The contact attempted to restart the vehicle several times before the vehicle restarted. There were no warning lights illuminated. The contact took the vehicle to the dealer who was unable to identify the cause of the failure. The contact…
Vehicle caught on fire from the inside somewhere towards the driver side in dash. Instrument cluster and dash completely burnt. Entire inside interior of car burnt
I sent this unit to the dealership to have a key programmed but they can't program the key. They said they need further information to program a key. Please advise.
The contact owned a 2020 Chevrolet Spark. The contact stated that the police department informed them that the vehicle caught on fire. The contact stated that the fire may have started under the instrument panel and air bags had deployed. The vehicle was severely burned and only the contact’s vehicle was burned. The fire department was able to extinguish the fire. A police report was filed. The…
Common questions
How serious is the electrical problem on the 2020 Chevrolet Spark?
It's a meaningful issue. 6 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 6 complaints filed, electrical issues most often appear around 109,458 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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.