Diagnostic Aids
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
- Unwanted or inadvertent door lock/unlock activation may be requested by the OnStar® Remote Link application. It is possible that a customer may be unaware of account usage, resulting in an unwanted or phantom door lock/unlock. If normal system diagnosis results in an inability to verify the customer's concern, contact Technical Assistance Center (TAC).
- If the vehicle has a current DTC that illuminates the malfunction indicator lamp (MIL), the cause of the DTC must be diagnosed before proceeding with the Remote Vehicle Start Inoperative diagnostic.
- The remote vehicle start system will not operate if any of the following conditions are present:
- A current emissions related vehicle DTC that illuminates the malfunction indicator lamp (MIL)
- The vehicle is not OFF
- The vehicle is in valet mode
- The hatch or tonneau, if equipped, is not closed
- The oil pressure is low
- The 30 minutes of run time may have been used. The vehicle must be cycled ON and OFF again to reset the 30 minutes.
- The fuel level is low enough to cause the low fuel indicator to be active
- A key fob is left in the vehicle
- The hazard switch is in the ON position
- The vehicle hood is ajar
- A current hood ajar DTC is set
- Incorrect BCM software is installed and remote vehicle start is not enabled
- The content theft deterrent system detects an alarm trigger
- Excessive engine RPM occurring after starting
- Excessive coolant temperature occurring after starting
- Accelerator pedal position greater than 0 percent
- Vehicle not in park
- Vehicle theft deterrent not passed
- A current automatic transmission shift lock control system DTC is set
- A vehicle speed is detected by the ECM