MODELYEARINDEX

Which Chevrolet Blazer years to avoid

No Chevrolet Blazer model year in 2019–2021 falls into the flagged band. The weakest are 2021 and 2020, and even those sit close to this model’s own median.

Ownership label · Chevrolet Blazer Full report
C
Grade 2019–2021
2021 vs model median 1.4×
Model median3× median
Electrical 24
Engine 20
Brakes 16
Weakest

2020 · 2021

Best

2019 · 2020

Year by year

Severity-weighted complaints filed in each model year’s first 60 months on the road, so every year is measured over an identical window.

Year Complaint volume vs median Reports Grade
2019
0.88× 84 B
2020
1.00× 96 C
2021
1.37× 123 C
2022 P
0.73× 68 B
2023 P
0.75× 61 B
2024 P
0.79× 68 B
2025 P
0.50× 40 B

P — provisional. These years have not completed 60 months on the road, so their totals are incomplete and they are excluded from the verdict.

What owners report

The component groups most often named, with one representative report. These are unverified — allegations, not findings.

2020 C 96 reports · median 6,000 mi

  1. Drivetrain 21

    With approximately 1500 miles on the vehicle, the blazer's automatic transmission failed while driving. I was stopped at a red light. owner complaint filed with NHTSA

  2. Engine 16

    In 2 occasions my vehicle came to a complete stop and turned off on me. I was thinking it was a safety feature but after the 2nd time I was concerned. Took it to dealership and they found nothing wrong with it. owner complaint filed with NHTSA

  3. Electrical 15

    After driving the vehicle for random periods of time and at random speeds, all the TPMS sensors will give alarms and then register as dashes on the dashboard. owner complaint filed with NHTSA

7 crash · 10 injuries

2021 C 123 reports · median 28,000 mi

  1. Electrical 24

    While driving the the whole dash goes blank for a few second, then then it reboots and eventually most of it comes back. owner complaint filed with NHTSA

  2. Engine 20

    I had just purchased my vehicle around december 9 2021. On around decmeber 16, 2021 around 8 AM I was driving on the highway 65 miles an hour. & the vehicle came to a complete stop. owner complaint filed with NHTSA

  3. Brakes 16

    Occasional grinding noise when braking' grinding noise when vehicle had less than 400 miles owner complaint filed with NHTSA

4 crash · 3 fire · 3 injuries

The best year for the Blazer

Ranked by overall score among years with a full 60 months on the road.

2019 is the best-scoring Blazer model year with a full 60 months on the road, at 72.9 out of 100 — a score that combines complaint rate, recall campaigns and open investigations.

Yearvs medianReportsGrade
2019 0.88× 84 B
2020 1.00× 96 C
2021 1.37× 123 C

Recalls

9 campaigns on record.

Campaign Component Model years Units affected
20V668000 POWER TRAIN:AUTOMATIC TRANSMISSION 2019, 2020 194,105
21V115000 TIRES 2019, 2020 33,838
23V172000 POWER TRAIN:AUTOMATIC TRANSMISSION 2023 8,744
20V446000 AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR 2020 769
24V737000 LATCHES/LOCKS/LINKAGES:DOORS:LATCH 2025 731
20V811000 SEAT BELTS 2021 470
23V869000 STRUCTURE:BODY:DOOR 2024 265
22V359000 SEATS 2022 221
23V042000 POWER TRAIN:DRIVELINE:DRIVESHAFT 2023 10

How long do they last?

Complaint records show when problems get reported, not how long a car survives. Where owners gave an odometer reading, faults on the 2021 were reported at a median of 28,000 miles. Treat that as the point problems start being noticed, not a lifespan.

Common questions

Answered directly from this model’s record.

Which Chevrolet Blazer years should you avoid?
No Chevrolet Blazer model year in 2019–2021 scores in the flagged band. The weakest are 2021 and 2020.
What is the best year for the Chevrolet Blazer?
2019 is the best-scoring Chevrolet Blazer model year with a full 60 months on the road, at 72.9 out of 100. The score combines complaint rate, recall campaigns and open investigations.
How many recalls does the Chevrolet Blazer have?
9 distinct recall campaigns are on record across all scored Chevrolet Blazer model years. A recall is a matter of record: the manufacturer filed a defect report with NHTSA.

How this was calculated

Every model year is scored over an identical window: complaints filed with NHTSA during the first 60 months after that model year went on sale. Without this, older cars look worse purely because they have had longer to accumulate reports.

Limitations. Complaints are unverified reports submitted voluntarily by owners; they are allegations, not findings, and reporting rates vary between models. Model years with fewer than 60 months on the road are marked provisional and excluded from verdicts. Cross-model comparison is withheld pending production-volume data.

Full methodology · Sources · Data vintage August 9, 2026

Working 2021 Blazer
Complaints in window
123
Severity-weighted
183
Model median (weighted)
134
vs model median
1.37×
Recall campaigns (weighted)
1
Open investigations
0
Score 63.4 C