CarModelProblems.com

2021 Chevrolet Trailblazer Problems & Recalls

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

Elevated complaint levelIts most-reported problem — Electrical System — runs 1.9× the fleet median for that category across the 2547 model-years tracked on this site.
181Complaints
4Recalls
7Crashes
3Fires
5Injured
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 (20.4% of complaints) — recall and investigation status for this vehicle is currently unavailable.

Electrical System complaints here are 1.9× the median for that category across the 2547 model-years tracked on this site.

Complaint categoryReportsOfficial statusReference
Electrical System37 · 20.4%not available
Power Train35 · 19.3%not available
Engine33 · 18.2%not available
Service Brakes29 · 16%RecalledRecall 20V588000
Fuel/propulsion System16 · 8.8%not available
Forward Collision Avoidance: Automatic Emergency Braking8 · 4.4%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

Unspecified / other51 · 28.2%
POWER TRAIN35 · 19.3%
ENGINE33 · 18.2%
FUEL/PROPULSION SYSTEM16 · 8.8%
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING8 · 4.4%
STRUCTURE:BODY6 · 3.3%
STEERING6 · 3.3%
VEHICLE SPEED CONTROL5 · 2.8%

Percentages are the share of the 181 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 — 4 campaigns

Seats:critical Fasteners

NHTSA campaign 20V537000 · 2020 · reported 09/03/2020

If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant. Recall repairs are free at authorized dealers.

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

Tires

NHTSA campaign 20V295000 · 2020 · reported 05/21/2020

If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash. Recall repairs are free at authorized dealers.

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

Service Brakes

NHTSA campaign 20V588000 · 2020 · reported 09/24/2020

If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash. Recall repairs are free at authorized dealers.

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

Equipment:mechanical:accessory Scissor/screw/bottle Jack/lift:stand

NHTSA campaign 21V440000 · 2021 · reported 06/10/2021

A fractured jack can cause the vehicle to collapse, 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

“Found standing water in spare tire well. Back seat constantly wet, growing mold. The whole back area is moldy, mold under driver seat. My back…”NHTSA complaint 11636360 — filed 01/16/2025 · UNKNOWN OR OTHER
“2021 Chevy Trailblazer When I go to park my car, there is a constant error of 'Shift to Park'. The car is already in park…”NHTSA complaint 11628521 — filed 12/03/2024 · UNKNOWN OR OTHER
“When I place my car in park, a "shift to park" message appears on the dashboard. I am unable to fully turn my car off…”NHTSA complaint 11626823 — filed 11/22/2024 · UNKNOWN OR OTHER

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

Complaint trend by year filed

72020282021292022222023632024752025402026

Frequently asked questions

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

Unknown or other issues are the most-reported category, cited in 51 of 181 NHTSA complaints (28.2%), followed by electrical system (37), power train (35), engine (33). Complaints are unverified owner reports.

How many complaints does the 2021 Chevrolet Trailblazer have?

181 complaints were on file with NHTSA as of 07/12/2026. Of those, 7 involved a crash, 3 involved a fire, and 5 reported injuries. No deaths were reported.

Does the 2021 Chevrolet Trailblazer have any recalls?

Yes — 4 NHTSA safety recall campaigns, including campaign 20V537000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.

Has NHTSA acted on the 2021 Chevrolet Trailblazer'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.