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.
Retained Accessory Power (Rap)
BCM will de-energize Retained Accessory Power (RAP) battery supply circuit for courtesy lighting after about 9-11 minutes from the time ignition switch is turned to OFF/LOCK position. RAP feature is also mileage-sensitive. When vehicle is driven less than 15 miles, lighting is disabled in 2-3 minutes. BCM restores power to RAP circuits when one of the following actions occur: Ignition switch is turned from OFF/LOCK position to ACC/ON position. Key is removed from ignition switch. Opening any door. Turning instrument panel dimmer switch to DOME position. Interior courtesy lighting or roof rail reading light is turned on. When BCM receives a message from Remote Control Door Lock Receiver (RCDLR) module for Remote Keyless Entry (RKE) requests (BCM type 3 or 4) or, when locking or unlocking a door is using a key (BCM type 4).
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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