Used Chevrolet Trailblazer: Inspection checklist
Pick the model year you are going to see. Each sheet lists the checks for the problems owners reported on that year, in the order you would do them at the car. Owners filed 400 complaints across these 6 years; the 2021 drew the most.

Choose a model year
2026
Few owner complaints
3 complaints0 recallsOpen checklist
2025
Most reported: electrical
19 complaints0 recallsOpen checklist
2024
Fewest complaintsMost reported: electrical
32 complaints0 recallsOpen checklist
2023
Most reported: electrical
62 complaints0 recallsOpen checklist
2022
Most reported: transmission
102 complaints1 recallOpen checklist
2021
Most complaintsMost reported: transmission
182 complaints4 recallsOpen checklist
Problems that follow the Trailblazer from year to year
Each of these is a top-three complaint area in at least two model years. Darker cells mean more complaints that year. Whatever year you are looking at, give these extra time.
| Area | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|---|
| Electrical | 32 | 15 | 13 | 9 | 8 | 77 | |
| Transmission | 35 | 29 | 9 | 5 | 6 | 84 | |
| Brakes | 18 | 9 | 11 | 4 | 42 | ||
| Engine | 20 | 7 | 13 | 4 | 44 |
Trailblazer generations and updates
First years of a new generation and mid-cycle updates are marked. Each year links to its checklist.
First generation
2021–now
2024 update: New front fascia design; New running lights; New LED taillights; New exterior colors
Mileages where Trailblazer problems start
From owner reports for each model year, lowest mileage first. Compare these with the odometer of the car you are seeing.
| Typical mileage | Problem | Year |
|---|---|---|
| 0–200 miles | Brake system failures | 2026 |
| 0–200 miles | Transmission issues | 2026 |
| 2,000–12,776 miles | Brake squeal and grinding | 2023 |
| 14,000–29,700 miles | False Shift to Park warning | 2022 |
| 20,000–45,000 miles | Shift to Park fault | 2021 |
| 23,000–90,000 miles | Turbo reduced engine power | 2021 |
| 25,000–60,000 miles | Turbo failure, reduced engine power | 2023 |
| 30,000–36,800 miles | Exhaust bolts rust and shear | 2022 |
| 43,906–77,000 miles | Evap purge pump code | 2021 |




