Retained Accessory Power (RAP) Power Mode

Retained accessory power (RAP) is a vehicle power mode that permits the operation of selected customer convenience items after the ignition switch is turned OFF. These selected items will remain in operation until a passenger compartment door is opened or until the RAP function timer reaches its limit.

The body control module (BCM) turns OFF the RAP function and de-energizes the RAP relay when one of the following conditions are met:

• The BCM senses the opening of any door or the lift gate.
• The ignition switch transitions from OFF to ON.
• The BCM receives a message from its internal timer indicating the end of the RAP period after 10 minutes.
• The BCM detects a decrease in battery capacity below a prescribed limit.

The BCM monitors the ignition switch position, battery condition, and passenger compartment door status to determine whether RAP should be initiated. If the ignition switch transitions from ON to OFF, the battery voltage is within the acceptable range and the passenger compartment doors are closed, the body control module energizes the RAP relay. This provides power for the following:

• Driver information center (DIC)
• Outside rearview mirror switch
• Power door lock control switches
• Power window control switches
• Radio
• Sunroof