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.
Emergency Mode In The Event Of A Fault
An emergency program is activated to deal with the fault when the transmission control module (TCM) detects a transmission fault (permanent fault). The transmission control module (TCM) then implements certain corrective actions to protect the transmission, while leaving the car in the best possible drivable condition. Minor malfunctions do not activate an emergency program. There are different programs depending on the type of fault.
- Emergency/limp-home mode
- Failsafe action (temporary action)
The failsafe action is indicated as soon as the fault is detected. Normal function is resumed if the fault disappears. Emergency mode is activated for minor faults and the Limp home mode for the most serious faults. If the malfunction is intermittent, the transmission control module (TCM) returns to normal operation the next time the ignition is switched on.
The warning lamp in the combined instrument panel lights and a text message appears in the display in the combined instrument panel if emergency/limp home mode is engaged. No text is displayed until the fault has been detected when the ignition is switched on.
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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.