Reliability & 5-year cost of ownership — 2021 Chevrolet Trailblazer
NHTSA data on file today
The 2021 Chevrolet Trailblazer has 4 NHTSA recall campaigns and 197 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
NCAP overall rating: 4.5 out of 5 stars, averaged across 4 NHTSA-tested trims.
Recall campaigns on file
- NHTSA #21V440000 Emergency Jack can Fracture While in Use NHTSA notice
- NHTSA #20V588000 Sensor Contamination in Electronic Brake Boost NHTSA notice
- NHTSA #20V537000 Front Seat Rear Attachment Bolts May Be Missing NHTSA notice
- NHTSA #20V295000 Missing Tire Pressure Information/FMVSS 110 NHTSA notice
Most-cited components in owner complaints
- Unknown or Other 56 complaints
- Electrical System 41 complaints
- Power Train 41 complaints
- Engine 39 complaints
- Service Brakes 30 complaints
- Fuel/Propulsion System 17 complaints
Of the 197 complaints on file, 7 report a crash and 3 a fire; across all 197 complaints, owners report 5 injuries (owner-reported, not verified by NHTSA).
Average
Estimated 5-year repair + maintenance cost: $5,000–$12,000AI estimate — not from NHTSA data
The 2021 Chevrolet Trailblazer has an average reliability rating with a moderate number of complaints and a few recall campaigns. Most issues reported involve the electrical system, powertrain, and engine, but available evidence is limited, making it difficult to identify specific common failures.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| Electrical system | 40,000–70,000 miles | $200–$600 | common |
| Power train | 50,000–80,000 miles | $1,000–$3,000 | common |
| Engine | 60,000–90,000 miles | $1,500–$4,000 | common |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake pad replacement
- Coolant system flush
- Transmission fluid change
- Tire rotation and balancing
- Air filter replacement
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Electrical issues
- Transmission slipping
- Engine misfires
- Brake system warning
- Unusual engine noises
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2021 Chevrolet Trailblazer at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.