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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER LT, 1.2L ENG VIN PREPAIR AND DIAGNOSISGENERAL INFORMATIONRESET PROCEDURESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK56 SERIAL DATA GATEWAY MODULE: PROGRAMMING AND SETUPUNSUCCESSFUL PROGRAMMING RECOVERY
2025 Chevrolet Trailblazer LT, 1.2L Eng VIN P

Unsuccessful Programming Recovery

2025 Chevrolet Trailblazer LT, 1.2L Eng VIN PSECTION Unsuccessful Programming Recovery

In the event of an interrupted or unsuccessful programming event, perform the following steps:

  1. Ignition ON/Vehicle In Service Mode. Ensure the control module, DLC and programming tool connections are secure and the SPS software is up to date.
  2. Verify the control module can be reprogrammed.
    • If the control module cannot be reprogrammed 
    1. Ignition/Vehicle OFF for one minute, ignition ON/Vehicle In Service Mode.
    2. Verify the control module can be reprogrammed.
      • If the control module cannot be reprogrammed, replace the control module.
      • Go to next step: If the control module can be reprogrammed.
    3. All OK.
    • Go to next step: If the control module can be reprogrammed 
  3. All OK.
RENDER: 1.0x

NO RELATED

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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.