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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERBATTERY, CHARGING SYSTEM AND STARTING SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSTOP/START SYSTEM MALFUNCTION (LE2)CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Trax Premier, AWD

Circuit/System Verification

2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify that no DTCs are set.
    • Go to next step: If no DTC is set 
  3. Verify the scan tool parameter:Stop/Start Select Switch = Inactive
    • If not the specified value 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified value 
  4. Press and hold the switch:S112 Fuel Economy Mode Switch
  5. Verify the scan tool parameter:Stop/Start Select Switch = Active
    • If not the specified value 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified value 
  6. Press and hold the switch:S112 Fuel Economy Mode Switch
  7. Verify the component activates:Stop/Start Select Switch Indicator
    • If the component does not activate 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the component activates 
  8. Verify the scan tool parameter:
    • Battery Sensor Module Battery State Information = Available
    • Battery Sensor Module Reset Occurred - Using Estimated State of Charge = No
    • If not the specified value 
    1. Refer to:Battery Sensor Module Learn 
    2. Road Test - Vehicle

      Verify the correct operation:Stop/Start System

      • Go to next step: If no condition exists
    3. All OK.
    • Go to next step: If the specified value 
  9. Test drive the vehicle.

    Verify a condition does not exist with the component:Stop/Start Function

    • Go to next step: If no condition exists 
  10. Verify a condition does not exist with the component:Infotainment System State - During an autostart or autostop event
    • If a condition exists 

      Refer to: Circuit/System Testing - Test 3

    • Go to next step: If no condition exists 
  11. All OK.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.