CarModelProblems.com

2021 Chevrolet Blazer Problems & Recalls

Built from official NHTSA complaint and recall data · data through 07/12/2026

High complaint levelIts most-reported problem — Electrical System — runs 2.7× the fleet median for that category across the 2547 model-years tracked on this site.
123Complaints
1Recalls
5Crashes
1Fires
6Injured
0Deaths

Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

Is this problem acknowledged?

The most-reported problem — Electrical System (29.3% of complaints) — recall and investigation status for this vehicle is currently unavailable.

Electrical System complaints here are 2.7× the median for that category across the 2547 model-years tracked on this site.

Complaint categoryReportsOfficial statusReference
Electrical System36 · 29.3%not available
Engine36 · 29.3%not available
Service Brakes18 · 14.6%not available
Power Train17 · 13.8%not available
Fuel/propulsion System16 · 13%not available
Steering15 · 12.2%not available

Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.

Complaints by component

ENGINE36 · 29.3%
Unspecified / other20 · 16.3%
SERVICE BRAKES18 · 14.6%
POWER TRAIN17 · 13.8%
FUEL/PROPULSION SYSTEM16 · 13%
STEERING15 · 12.2%
SUSPENSION4 · 3.3%
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING4 · 3.3%
TIRES2 · 1.6%

Percentages are the share of the 123 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.

Recalls — 1 campaign

Seat Belts

NHTSA campaign 20V811000 · 2020 · reported 12/23/2020

If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury. Recall repairs are free at authorized dealers.

PARK-IT: NO  · PARK-OUTSIDE: NO  ·  OVER-THE-AIR FIX: NO

Park it Park outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.

What owners report

“Car was running fine yesterday, today does not want to start. Thought it was the battery, bought anew battery. Still wouldn't start. Rest of cat…”NHTSA complaint 11699684 — filed 11/16/2025 · ELECTRICAL SYSTEM
“Request for Recall Review – 2021 Chevrolet Blazer Steering Assist and Cooling Fan Issue Hello, I am writing to report a recurring issue with my…”NHTSA complaint 11692416 — filed 10/09/2025 · ELECTRICAL SYSTEM
“The vehicle has 14,000 miles on it and the fuel pump control module has gone out on it. This happened while away from home and…”NHTSA complaint 11675095 — filed 07/21/2025 · ELECTRICAL SYSTEM

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Complaint trend by year filed

14202172022192023212024982025342026

Frequently asked questions

What are the most common problems with the 2021 Chevrolet Blazer?

Electrical system issues are the most-reported category, cited in 36 of 123 NHTSA complaints (29.3%), followed by engine (36), unspecified/other issues (20), service brakes (18). Complaints are unverified owner reports.

How many complaints does the 2021 Chevrolet Blazer have?

123 complaints were on file with NHTSA as of 07/12/2026. Of those, 5 involved a crash, 1 involved a fire, and 6 reported injuries. No deaths were reported.

Does the 2021 Chevrolet Blazer have any recalls?

Yes — 1 NHTSA safety recall campaign, including campaign 20V811000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.

Has NHTSA acted on the 2021 Chevrolet Blazer's reported problems?

Recall or investigation data is partly unavailable for this vehicle right now — check your VIN at nhtsa.gov/recalls for the authoritative answer.

Is a complaint proof of a defect?

No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.