Is your Saturn Outlook or other GM vehicle suffering from strange and unpredictable electrical problems? A failing Body Control Module (BCM) is often the culprit. The BCM acts as the central nervous system for your vehicle’s electronic accessories, controlling everything from your power windows and locks to the interior lights and security system. When it fails, it can cause a cascade of frustrating issues that can be difficult to diagnose.
This is a direct-fit replacement Body Control Module, part number 20921436, for a wide range of General Motors vehicles. To make your repair as simple as possible, we program the module to your vehicle’s specific VIN before shipping. This ensures it communicates correctly with your vehicle’s other systems right out of the box, saving you a trip to the dealership for expensive programming.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Dashboard warning lights appearing randomly (e.g., airbag, ABS, traction control).
- ✔ Radio or climate control systems behaving unpredictably.
- ✔ A ‘Service Electrical System’ or similar message on the instrument cluster.
- ✔ Complete loss of communication with the diagnostic port.
Installation Notes for your 2007-2010 Outlook BCM
While this module is pre-programmed for your convenience, some vehicles may require additional post-installation steps, known as relearn procedures. These are simple calibrations that sync the new BCM with other vehicle components. Depending on your specific model and its options, you may need a professional scan tool to perform these functions.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is necessary. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration might be required.
We provide this pre-programmed 2007-2010 Outlook BCM to get you most of the way there, but always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Guaranteed Compatibility and Fitment
This BCM is a direct replacement for a multitude of part numbers, ensuring broad compatibility across the GM lineup. If your original module has any of the following part numbers, this unit will work for your vehicle: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle responsible for managing and controlling body-related electronic functions. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central hub for these features.
Do I need to program this BCM?
No. We handle the programming for you before shipment. Simply provide us with your vehicle’s 17-digit VIN during or after checkout, and we will flash the module with the latest GM software specific to your car.
What if my airbag light is on after I install the BCM?
This is a common occurrence. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A technician with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this a new part?
This is a reliable, fully tested original equipment (OEM) part that has been verified to meet or exceed factory specifications. It is not a new part, but a proven component ready for years of dependable service.
Where is the BCM located on my Saturn Outlook?
On the 2007-2010 Saturn Outlook, the Body Control Module is typically located in the center dash area. Always consult a service manual for your specific vehicle to confirm the location and proper removal procedure.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.