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#BS-2021-CHEBLA-4CAA2021 Chevrolet BlazerProblems, Recalls & Reliability
Based on reports from 215 owners and 1 recall for this exact model.
Data updated ·NHTSA complaints through October 28, 2026
Preliminary Verdict
Think Twice
Based on 215 complaints, 7 crashes, 3 fires, and 1 recalls.
Top reported problems
service light steering assist problem traction control
2 complaints • Severity 4/10
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Mechanic Inspection Checklist
45 owners reported engine issues — failures commonly reported around 36K miles.
Failure Timeline by Mileage
Peak failure range: 0–30K miles (12 reports) • Median: 36K miles
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Engine (45 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
2021 Chevrolet Blazer: Known Issues & Problem Areas
Engine Issues
Engine complaints account for 21% of all reports filed for the 2021 Chevrolet Blazer, with 45 owners filing complaints with NHTSA. The median mileage at time of complaint is 36,000 miles, suggesting issues tend to surface around the 36K-mile mark.
Electrical Issues
Electrical complaints account for 18% of all reports filed for the 2021 Chevrolet Blazer, with 39 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.
Brakes Issues
Brakes complaints account for 10% of all reports filed for the 2021 Chevrolet Blazer, with 21 owners filing complaints with NHTSA. Owners should pay attention to brakes-related symptoms during test drives and pre-purchase inspections.
Drivetrain Issues
Drivetrain complaints account for 9% of all reports filed for the 2021 Chevrolet Blazer, with 19 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 2021 Chevrolet Blazer. Recent trend: decreasing.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (1 recall)
SEAT BELTS:CRITICAL FASTENERS
General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
2021 Chevrolet Blazer NHTSA Safety Ratings
Overall
★★★★★5 of 5 stars
Frontal crash
★★★★★5 of 5 stars
Side crash
★★★★★5 of 5 stars
Rollover
★★★★★4 of 5 stars
From NHTSA's New Car Assessment Program (5-Star Safety Ratings). Where NHTSA tested more than one version of this vehicle, the lowest rating is shown.
The worst model year for the Chevrolet Blazer is the 1994 — worth knowing if you're cross-shopping years. The biggest problem area is engine.
2021 Chevrolet Blazer vs. Class Average (Small Sport Utility Vehicle 2WD)
This vehicle
215
Class avg
207
Complaint volume is roughly in line with other small sport utility vehicle 2wd vehicles from 2021.
Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 215 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 1 recall found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Last updated . NHTSA complaints received through October 28, 2026; safety ratings from NHTSA's 5-Star program.
Other Chevrolet Blazer Model Years
2021 Chevrolet Blazer: Frequently Asked Questions
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What’s in the full report?
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Get the Full 2021 Chevrolet Blazer Report
10 sections of AI analysis based on 215 owner reports. Know before you buy.