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.
Arming/Disarming UTD
When a lock command is received by Door Control Modules (DCMs), Body Control Module (BCM) will arm Universal Theft Deterrent (UTD) system. The BCM turns off courtesy lights and sounds vehicle horn indicating UTD is armed. When doors or hatch is unlocked, BCM disarms UTD.
To send a disarm UTD message to BCM, the following conditions must exist: a valid transmitter is in range, key is not in ignition, and remote control door lock receiver has identified unlock command or hatch release command from a valid transmitter.
To send an arm UTD message to BCM, transmitter LOCK button must be pressed when key is not in ignition.
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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.