CarModelProblems.com

2021 Chevrolet Blazer Problems & Recalls

Built from official NHTSA complaint and recall data · data through 09/08/2026

High complaint levelIts most-reported problem — Engine — runs 2.4× the fleet median for that category across the 2584 model-years tracked on this site.
130Complaints
1Recalls
6Crashes
1Fires
7Injured
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 — Engine (30% of complaints) — has no NHTSA recall or open investigation on file.

Engine complaints here are 2.4× the median for that category across the 2584 model-years tracked on this site.

None of the 6 most-reported categories on this page have a recall or open investigation on file — they rest on unverified owner reports alone.

Complaint categoryReportsOfficial statusReference
Engine39 · 30%No official action
Electrical System37 · 28.5%No official action
Service Brakes18 · 13.8%No official action
Power Train18 · 13.8%No official action
Fuel/propulsion System17 · 13.1%No official action
Steering15 · 11.5%No official action

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

ENGINE39 · 30%
Unspecified / other20 · 15.4%
SERVICE BRAKES18 · 13.8%
POWER TRAIN18 · 13.8%
FUEL/PROPULSION SYSTEM17 · 13.1%
STEERING15 · 11.5%
SUSPENSION4 · 3.1%
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING4 · 3.1%
TIRES3 · 2.3%

Percentages are the share of the 130 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

“In September 2023, when getting my vehicle serviced for a routine oil change, I was told there was a leak in my radiator. They replaced…”NHTSA complaint 11701205 — filed 11/24/2025 · ENGINE
“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 · ENGINE
“Was informed at today's oil change that my radiator is leaking and it's something that they are seeing a bunch.”NHTSA complaint 11688507 — filed 09/19/2025 · ENGINE

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

Complaint trend by year filed

14202172022192023212024982025422026

Frequently asked questions

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

Engine issues are the most-reported category, cited in 39 of 130 NHTSA complaints (30%), followed by electrical system (37), unspecified/other issues (20), service brakes (18). Complaints are unverified owner reports.

How many complaints does the 2021 Chevrolet Blazer have?

130 complaints were on file with NHTSA as of 09/08/2026. Of those, 6 involved a crash, 1 involved a fire, and 7 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?

0 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.

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 09/08/2026.