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.
Normal Operation and Fault Conditions
The selectable drive mode switch is part of the FCIM. The selectable drive mode feature allows the driver to select between several driving modes. Pressing the drive mode switch sends a ground signal to the FCIM which then sends messages to various modules on the CAN. Pressing the drive mode switch multiple times cycles through the available drive modes. For additional information on selectable drive modes, refer to Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.
The IPC displays various messages to alert the driver to system errors. There are several modules involved in the selectable drive mode system, an internal error or DTC in one or more modules causes the system to shut down and remain inoperative.
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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.