2012 Chevrolet VoltFACTORY OEM SERVICE PROCEDURE

Adding Keys (With SPS)

NOTE:
  • This procedure may be used with or without existing learned keys being present.
  • This procedure will take more than 15 minutes to complete.
  • A total of eight keys maybe be learned to a single vehicle.
  • This procedure will only learn the vehicle key information. This procedure will not learn any immobilizer information between the body control module (BCM) and engine control module (ECM).
  • If the battery voltage is low, charge the battery before continuing with the procedure.
  1. Connect a scan tool to the vehicle and access SPS.
  2. Ensure that all power consuming devices are turned OFF on the vehicle.
  3. Select the SPS application and follow the on-screen instructions.
  4. Select Reprogram ECU.
  5. Select IMMO Immobilizer Learn - Setup.
  6. Select the Program Transponder or Remote Key (Add) function.
    7. NOTE:
    • At multiple times during the learn procedure, SPS will instruct you to turn the vehicle to Service Mode. Make sure the vehicle is actually in the Service Mode before continuing on the SPS terminal. If the vehcile is not in the Service Mode, the learn procedure will fail.
    • The key slot is located inside the upper instrument panel storage compartment. The rubber mat lining the bottom of the compartment needs to be removed to access the slot.
  7. Follow the on-screen instructions.
    8. NOTE:

    If the programming does not complete or hangs during the programming operation, refer to Unable to Complete Programming below.

  8. After programming all keys, Programming Complete, is displayed.
  9. Press and hold the vehicle ON/OFF switch for 15 seconds.
  10. Press the lock and unlock button on each key that was programmed. This will awaken each key and allow passive and active keyless entry functions to be established.
  11. With a scan tool, clear any DTCs.
  12. Verify each key is operating properly. Operate each of the keyless entry functions using the buttons on the key and then start the vehicle. When verifying operation, make sure that no other keys are near the vehicle.
Factory Service Tools

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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.