2020 Chevrolet Blazer - Electric Vehicle Guide
The 2020 Chevrolet Blazer belongs to a Chevrolet Blazer lineup that Know Your Ride tracks across 27 model years, from 1981 to 2026. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion Blazer entirely. It is configured as front-wheel drive with an automatic 9-spd. The 2020 sits mid-run, with both earlier (1981) and later (2026) Blazer model years also documented.
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 14 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 power train (28), engine (27), unknown or other (27). A representative report reads: "Thermostat stuck open radiator broke. Told by 4 GM Dealerships, this is a very common problem in a GM 3.6L V6. GM even claims it's common in its Tech..." There are 3 safety recalls on record; one covers: ...certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500....
Estimated annual charging cost runs near $1,900.
Quick Specs
| Battery warranty | 8 yr / 100,000 mi |
| Est. annual charging | $1,900 |
| Tire size | 245/60R18 |
| Coolant | Dex-Cool |
| NHTSA overall | 5 / 5 stars |
| Open recalls on record | 3 |
| 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
Related Vehicles
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.