Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2018SONIC PREMIER, 4D SEDAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSK71 TRANSMISSION CONTROL MODULE: PROGRAMMING AND SETUPUNSUCCESSFUL PROGRAMMING RECOVERY

2018 Chevrolet Sonic Premier, 4D Sedan, Standard Trans

Unsuccessful Programming Recovery

2018 Chevrolet Sonic Premier, 4D Sedan, Standard TransSECTION Unsuccessful Programming Recovery

WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

If programming a control module is not successful, perform the following procedure:

Verify the control module, data link connector and programming tool connections are secure and the SPS software is up to date.
Ignition On/Vehicle In Service Mode
Access SPS and follow the on-screen instructions for the control module: K71 Transmission Control Module - Programming
Verify the control module programming is successful.
- If the programming is not successful
1. Ignition/Vehicle Off - For greater than 2 min
2. Ignition On/Vehicle In Service Mode
3. Perform the SPS function: K71 Transmission Control Module - Programming
  - If the programming is not successful, replace the component: K71 Transmission Control Module
  1. Perform the SPS function: K71 Transmission Control Module - Programming
  2. After the programming is complete, select: Setup - If available
    If Setup is not available in SPS - Perform the appropriate learn/reset procedure with the scan tool
  3. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
  - If the programming is successful
4. Perform the following steps: Setup - If available
  If Setup is not available in SPS - Perform the appropriate learn/reset procedure with the scan tool
5. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
6. All OK.
- If the programming is successful
Perform the following steps: Setup - If available
If Setup is not available in SPS - Perform the appropriate learn/reset procedure with the scan tool
Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
All OK..

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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.