CarModelProblems.com

2020 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 3.1× the fleet median for that category across the 2547 model-years tracked on this site.
211Complaints
3Recalls
5Crashes
0Fires
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 — Electrical System (33.6% of complaints) — recall and investigation status for this vehicle is currently unavailable.

Electrical System complaints here are 3.1× the median for that category across the 2547 model-years tracked on this site.

Complaint categoryReportsOfficial statusReference
Electrical System71 · 33.6%not available
Power Train70 · 33.2%RecalledRecall 20V668000
Engine68 · 32.2%not available
Steering40 · 19%not available
Service Brakes10 · 4.7%not available
Suspension4 · 1.9%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

POWER TRAIN70 · 33.2%
ENGINE68 · 32.2%
Unspecified / other54 · 25.6%
STEERING40 · 19%
SERVICE BRAKES10 · 4.7%
SUSPENSION4 · 1.9%
VEHICLE SPEED CONTROL4 · 1.9%
FUEL/PROPULSION SYSTEM4 · 1.9%
WHEELS3 · 1.4%

Percentages are the share of the 211 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 — 3 campaigns

Tires

NHTSA campaign 21V115000 · 2021 · reported 02/25/2021

Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash. Recall repairs are free at authorized dealers.

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

Air Bags:side/window:curtain:inflator

NHTSA campaign 20V446000 · 2020 · reported 07/30/2020

If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash. Recall repairs are free at authorized dealers.

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

Power Train:automatic Transmission

NHTSA campaign 20V668000 · 2020 · reported 10/29/2020

Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire. 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

“Coolant temperature would not read, steering assist malfunctioning, air conditioner intermittent. Wiring harness for sensors loomed together with coil pack wiring interrupting signals.”NHTSA complaint 11655693 — filed 04/20/2025 · ELECTRICAL SYSTEM
“COMMON ISSUE, The steering assist is reduced and temp gauge is stuck on C. This either a thermostat or temp sensor issue.”NHTSA complaint 11651005 — filed 03/27/2025 · ELECTRICAL SYSTEM
“We have experienced 2 issues that are very well known issues, I will list them here. First, is the Shift to Park issue, that involves…”NHTSA complaint 11628254 — filed 12/02/2024 · ELECTRICAL SYSTEM

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

Complaint trend by year filed

420201220211420221920237920241372025862026

Frequently asked questions

What are the most common problems with the 2020 Chevrolet Blazer?

Electrical system issues are the most-reported category, cited in 71 of 211 NHTSA complaints (33.6%), followed by power train (70), engine (68), unspecified/other issues (54). Complaints are unverified owner reports.

How many complaints does the 2020 Chevrolet Blazer have?

211 complaints were on file with NHTSA as of 07/12/2026. Of those, 5 involved a crash, 0 involved a fire, and 7 reported injuries. No deaths were reported.

Does the 2020 Chevrolet Blazer have any recalls?

Yes — 3 NHTSA safety recall campaigns, including campaign 21V115000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.

Has NHTSA acted on the 2020 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.