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NHTSA-Verified · Common Problems

2016 Chevrolet Impala Eco Eassist
Common Problems

Ranked from 352 federal NHTSA complaints. Every problem links to the complaint IDs behind it.

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

9 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

    Reduced Engine Power

    170complaints
    Safety riskEngine

    The engine power is reduced during driving, leading to sudden loss of speed and difficulty accelerating, posing a safety risk.

  2. 2

    Auto Stop/Start System Failure

    101complaints
    Safety riskElectrical

    The auto stop/start feature intermittently shuts off the engine when the brake is released, causing the car to stall or fail to restart.

    $150–$900est. stop-start system diagnosis · 1–4 hrs labor
    Get local quotes
  3. 3

    Engine Power Reduction During Driving

    80complaints
    Safety riskEngine

    The engine suddenly reduces power while driving on highways or streets, causing the car to slow down dramatically.

  4. 4

    Shift to Park Issue

    72complaints
    High severityElectrical

    The vehicle does not recognize it is in park, leading to issues such as inability to turn off the engine or lock doors.

    $200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs labor
    Get local quotes
  5. 5

    Incorrect Shifting to Park

    65complaints
    High severityTransmission

    The car fails to properly shift into park, requiring multiple attempts to shut off the engine.

    $200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs labor
    Get local quotes
  6. 6

    Electrical System Issues Causing Random Malfunctions

    54complaints
    High severityElectrical

    Random malfunctions occur in the electrical system, such as the check engine light coming on and various warning messages appearing.

  7. 7

    Electrical System Failure Causing Engine Power Reduction

    15complaints
    High severityElectrical

    The electrical system malfunctions, leading to the engine reducing power and the car slowing down.

  8. 8

    Brake Booster Vacuum Pump Failure

    10complaints
    Safety riskBrakes

    The brake booster vacuum pump fails, causing the brake pedal to become stiff and the brakes to fail, increasing crash risk.

    $500–$1,300est. brake booster replacement · 2–5 hrs labor
    Get local quotes
  9. 9

    Shift to Park Warning Message

    5complaints
    Medium severityElectrical

    The vehicle displays a 'Shift to Park' warning message when in park, preventing the car from turning off completely.

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

Other years & sources

2015 Chevrolet Impala Eco EassistAll 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.