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 category
Reports
Official status
Reference
Electrical System
71 · 33.6%
not available
—
Power Train
70 · 33.2%
Recalled
Recall 20V668000
Engine
68 · 32.2%
not available
—
Steering
40 · 19%
not available
—
Service Brakes
10 · 4.7%
not available
—
Suspension
4 · 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.
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.
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
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
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 itPark 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
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.
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