How common are electrical problems on the 2020 Chevrolet Blazer?

NHTSA has logged 76 Electrical System complaints for the 2020 Blazer, which is 35% of the 219 total complaints filed for that model year, the largest share of any Blazer model year in the data.

Is there a recall for the 2020 Chevrolet Blazer's electrical system?

No. The data shows no related recalls filed for this component on the 2020 Blazer.

At what mileage do 2020 Blazer electrical problems usually show up?

The median mileage at failure for Electrical System complaints on the 2020 Blazer is 38,000 miles.

What electrical failures do 2020 Blazer owners report most?

Owners describe false TPMS alarms, rearview camera dropouts or overheating, shift-to-park error messages that block the engine from shutting off, and infotainment lockups.

Did any 2020 Blazer electrical complaints involve crashes or fires?

No. NHTSA data for this component and model year shows 0 crashes and 0 fires reported.

2020 Chevrolet Blazer Electrical System Problems

NHTSA lists 76 Electrical System complaints for the 2020 Chevrolet Blazer, 35% of its 219 total complaints, the highest share among Blazer model years. There are no related recalls on file, and reported failures include TPMS glitches, rearview camera dropouts, and shift-to-park errors, with median mileage at failure around 38,000.

Electrical System complaints: 76; 35% of 219
Crashes reported: 0
Fires reported: 0
Injuries reported: 0
Median mileage: 38,000 mi
Related recalls: 0

Typical electrical symptoms owners report

TPMS sensors flash false alarms for each tire in sequence and then reset after a period of normal driving.
Rearview and backup cameras go black intermittently or overheat to the touch, creating a blind spot while backing up.
Vehicles display a false 'Shift to Park' message that prevents the engine from being turned off, sometimes requiring the shifter to be cycled again.
Dashboard shows a 'steering assist reduced' warning tied to a stuck thermostat valve that forces the cooling fan into a default high-speed mode.
Infotainment and instrument cluster lock up, with radio volume and steering column controls becoming unresponsive.

When 2020 Chevrolet Blazer electrical complaints were filed

First complaint Jan 26, 2021, latest Sep 19, 2026.

76 complaints filed with NHTSA from Jan 2021 to Sep 2026; peak Oct 2025 (9).

Electrical System recalls for the 2020 Chevrolet Blazer

No safety recalls on record for this model year.

Electrical System complaints by Blazer model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

201960 (32%)
202076 (35%)
202138 (29%)
202216 (32%)
202310 (23%)
20247 (15%)
20258 (25%)

Frequently asked questions

How common are electrical problems on the 2020 Chevrolet Blazer?: NHTSA has logged 76 Electrical System complaints for the 2020 Blazer, which is 35% of the 219 total complaints filed for that model year, the largest share of any Blazer model year in the data.
Is there a recall for the 2020 Chevrolet Blazer's electrical system?: No. The data shows no related recalls filed for this component on the 2020 Blazer.
At what mileage do 2020 Blazer electrical problems usually show up?: The median mileage at failure for Electrical System complaints on the 2020 Blazer is 38,000 miles.
What electrical failures do 2020 Blazer owners report most?: Owners describe false TPMS alarms, rearview camera dropouts or overheating, shift-to-park error messages that block the engine from shutting off, and infotainment lockups.
Did any 2020 Blazer electrical complaints involve crashes or fires?: No. NHTSA data for this component and model year shows 0 crashes and 0 fires reported.