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NHTSA-Verified · Common Problems

2021 Chevrolet Trailblazer
Common Problems

Ranked from 58 federal NHTSA complaints and 1 recalls. Every problem links to the complaint IDs behind it.

2
Safety
5
High severity
4
Medium
1
Low
2 problems on this vehicle involve a crash, fire, or injury risk. If you are experiencing one, stop driving and have it inspected.

12 Common Problems

Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.

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  1. 1

    Faulty shift to park functionality

    16complaints
    High severityElectrical

    The shift to park feature malfunctions, preventing the vehicle from turning off or locking, requiring multiple attempts to resolve.

    $200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs labor
    Get local quotes
  2. 2

    Engine Power Reduction

    11complaints
    Medium severityEngine

    The engine experiences reduced power, causing the vehicle to move slowly and the engine light to come on.

  3. 3

    Brake system failure with intermittent operation

    6complaints
    Safety riskBrakes

    The brake system intermittently fails, causing the vehicle to stall or lose power during operation, posing a safety risk.

    $150–$1,000est. brake system diagnosis + repair · 1–4 hrs labor
    Get local quotes

    Related recall: 20V588000

  4. 4

    Infotainment system failure

    6complaints
    Low severityElectrical

    The infotainment system, including the radio and backup camera, stops functioning, affecting convenience and safety features.

    $200–$1,500est. infotainment unit service · 0.5–3 hrs labor
    Get local quotes
  5. 5

    Fuel System Leaks

    5complaints
    High severityFuel system

    Fuel system leaks cause strong gasoline odors, potentially leading to a fire or explosion.

  6. 6

    Brake System Malfunction

    4complaints
    High severityBrakes

    The brake system malfunctions, causing loss of control and potential safety risks during driving.

    $150–$1,000est. brake system diagnosis + repair · 1–4 hrs labor
    Get local quotes

    Related recall: 20V588000

  7. 7

    Electrical System Issues

    4complaints
    Medium severityElectrical

    Random malfunctions of electronic components, including power steering and brake failures, accompanied by abnormal sounds and sensitivity issues.

  8. 8

    Electrical System Low Voltage

    4complaints
    Medium severityElectrical

    The electrical system operates at low voltage, causing various electronic issues and unexpected shutdowns.

  9. 9

    Transmission Shift Interlock Failure

    4complaints
    High severityTransmission

    The transmission shift interlock fails to recognize the gear change, preventing the vehicle from shutting off properly.

    $200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs labor
    Get local quotes
  10. 10

    Engine coolant control valve failure

    2complaints
    Medium severityEngine

    The engine coolant control valve fails, leading to overheating issues and a check engine light.

  11. 11

    Forward Collision Avoidance System Malfunction

    2complaints
    Safety riskElectrical

    Lane departure, forward collision avoidance, and automatic emergency braking systems fail or stop working entirely.

  12. 12

    Severe Wiper Malfunction

    2complaints
    High severityOther

    Wiper systems fail completely, leading to poor visibility during rainy or snowy conditions.

Other years & sources

2022 Chevrolet TrailblazerAll NHTSA complaints for this vehicle →

Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.