2021 Chevrolet Suburban Electrical System Problems
NHTSA lists 26 electrical system complaints for the 2021 Chevrolet Suburban, 13% of all complaints for the year, with one fire and 4 injuries reported. A related recall (22V827000) addresses daytime running lights that fail to deactivate, fixed with a free over-the-air software update.
- Electrical System complaints
- 26
- 13% of 199
- Crashes reported
- 0
- Fires reported
- 1
- Injuries reported
- 4
- Median mileage
- 68,448 mi
- Related recalls
- 1
Typical electrical symptoms owners report
- Headlights suddenly point downward or inward, cutting visibility at night, often traced to a broken or failed headlight adjuster.
- Random dashboard warnings appear together, including forward collision, traction control, and stability system alerts, sometimes with vibration or jerking.
- Windshield wipers or turn signals activate on their own or run at the wrong speed without driver input.
- False alerts appear for the back hatch or cargo light while the hatch is actually closed.
- A recurring 'Service Safety Restraint System' warning affects the airbag control module and reappears after dealer visits.
- Owners report vehicles losing power while driving, in one case linked to a failed fuel pump power control module.
When 2021 Chevrolet Suburban electrical complaints were filed
First complaint Jun 10, 2021, latest Sep 22, 2026.
Electrical System recalls for the 2021 Chevrolet Suburban
- NHTSA 22V827000Nov 3, 2022Electrical System338,735 vehiclesOver-the-air fix
Exterior lighting:lighting control module:software
General Motors, LLC (GM) is recalling certain 2021 Yukon, Yukon XL, Chevrolet Tahoe, Chevrolet Suburban, Cadillac Escalade, and Cadillac Escalade ESV vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Daytime Running Lights that do not deactivate as intended may cause a glare, reducing visibility and increasing the risk of a crash.
Remedy: Dealers will provide an over-the-air (OTA) update for the Body Control Module software, free of charge. Owner notification letters were mailed December 15, 2022. Owners may contact GM customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222382220.
Electrical System complaints by Suburban model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many electrical system complaints does the 2021 Chevrolet Suburban have?
- NHTSA lists 26 electrical system complaints for the 2021 Suburban, which is 13% of all 199 complaints filed for that model year.
- Is there a recall for electrical problems on the 2021 Chevrolet Suburban?
- Yes. Recall 22V827000 covers daytime running lights that may not deactivate as intended. GM's remedy is a free over-the-air update to the Body Control Module software.
- What mileage do electrical failures typically show up at on the 2021 Suburban?
- The median mileage at failure for electrical system complaints on the 2021 Suburban is 68,448 miles.
- Have any crashes, fires, or injuries been linked to these electrical complaints?
- NHTSA data shows 0 crashes, 1 fire, and 4 injuries associated with electrical system complaints on the 2021 Suburban.
- What kind of electrical issues do owners describe most?
- Owners most often describe headlights that point downward or inward due to adjuster failures, along with random warning lights and wipers or turn signals activating on their own.