Rear Park Assist ( RPA ) Chime Inoperative - kw assist BCM clearance module program URPA repeat reverse

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Rear Park Assist (RPA) chime inoperative

The RPA chime may be inoperative and diagnostics may show no codes. One frequent point of confusion is that if a BCM has been replaced recently, and it is noticed that the ultrasonic RPA system CHIME does not work but the LEDs do, the BCM may not have been properly setup. When programming the BCM and choosing the options specific for RPA, there are TWO Rear Park Assist choices listed and BOTH need to be selected. When done in this manner, the CHIMES will operate as intended. If the BCM has just been replaced and is not 'secured' due to key cycles, go back in and also select the second RPA option. If this cannot be accomplished, the BCM will have to be replaced using the above information in the setup. Techline has been requested to investigate issue for greater simplification.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(2002-2004 Buick Rendezvous)

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