2021 Chevrolet Trailblazer - Electric Vehicle Guide
The 2021 Chevrolet Trailblazer is catalogued in the Know Your Ride maintenance database. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion Trailblazer entirely. It is configured as all-wheel drive with an automatic 9-spd.
The high-voltage battery is covered for 8 years or 100,000 miles, separate from the bumper-to-bumper warranty. Routine upkeep centers on tire rotation, DOT 3 brake fluid, Dex-Cool battery/cabin coolant, cabin air filters and brake service rather than engine oil. Know Your Ride lists 13 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include lug nut 100 ft-lb.
NHTSA complaints for this vehicle cluster around unknown or other (28), power train (23), engine (14). A representative report reads: "I needed to have my muffler welded in November to pass inspection. I was told I would likely need the entire thing replaced in a year. I now hear another..." There are 4 safety recalls on record; one covers: General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The....
Estimated annual charging cost runs near $1,550.
Quick Specs
| Battery warranty | 8 yr / 100,000 mi |
| Est. annual charging | $1,550 |
| Tire size | 245/60R18 |
| Coolant | Dex-Cool |
| NHTSA overall | 5 / 5 stars |
| Open recalls on record | 4 |
| Technical service bulletins | 200 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
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Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.