Enhance your custom conversion or upgrade project with RPO codes AU3 and A31, enabling power windows and power door locks functionality in your vehicle’s Body Control Module (BCM). This service ensures your BCM supports these features, perfect for custom builds requiring BCM programming for power windows and locks.

Supported Vehicles

• Chevrolet Silverado: 2003–2006, 2007 Old Body Style

• GMC Sierra: 2003–2006, 2007 Old Body Style

Important Notes

• The 2007 model year must be the Old Body Style (GMT800 platform)

• Customers must send their BCM for this service

• Installation requires compatible hardware, including power window regulators, power lock actuators, and door panel switches for AU3/A31 functionality

• This service does not include hardware; it only programs your existing BCM to support power windows (A31) and power door locks (AU3)

Service Includes

• Programming your BCM to enable AU3 and A31 features

• Return shipping of your programmed module

FAQ

Q: Will this work on 2007 Silverado/Sierra standard body style?
A: No. It only works on the Old Body Style (GMT800 platform).

Q: Do I need to send my BCM?
A: Yes. The BCM must be shipped to us for programming.

Q: Does this service provide hardware like motors or switches?
A: No. Hardware must already be installed. This service only activates functionality in your existing BCM.

Q: Can I use this for a new custom conversion?
A: Yes. This service is designed for custom conversions or upgrades requiring BCM support for power windows and door locks.

Q: How long does the service take?
A: Once we receive your BCM, programming is typically completed and shipped back the next business day.

Q: What if my BCM is damaged or non-communicative?
A: Contact us before ordering, as some modules may require repair or replacement before AU3/A31 programming.