Is Your GM Vehicle Experiencing Strange Electrical Problems?
If you’re dealing with flickering lights, power windows that have a mind of their own, or a security system that won’t behave, the culprit is often a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, managing everything from your interior dome lights and power locks to the anti-theft system. When it starts to fail, it can create a cascade of frustrating and seemingly unrelated issues.
The Simple, Reliable Solution for a Complex Problem
Instead of a costly trip to the dealership for diagnostics and programming, this direct replacement BCM offers a streamlined solution. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This ensures that the BCM communicates perfectly with your vehicle’s other systems right out of the box, restoring full functionality and getting you back on the road with confidence.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The security system engaging randomly or the horn sounding without reason.
- ✔ A persistent parasitic battery drain that kills your battery overnight.
- ✔ Instrument cluster warning lights appearing for no reason.
- ✔ Remote keyless entry failing to work.
Your Direct Replacement GM Body Control Module 22915542
This module is a direct fit for a wide range of Chevrolet, GMC, Buick, and Cadillac vehicles, including the Impala, Traverse, Acadia, Savana, and Express vans. It is a reliable replacement for original part numbers 22915542 and 22820314. By providing us with your VIN during checkout, you receive a module that is loaded with the latest GM-certified software for your exact vehicle configuration. This critical step ensures seamless integration and avoids the common compatibility conflicts that arise from using a non-programmed module.
Installation and Post-Installation Notes
Physically installing the BCM is a straightforward process, typically involving disconnecting the battery and swapping the module in its mounting location (often under the driver’s side dash). However, due to the complexity of modern vehicle systems, a couple of additional steps may be required after installation:
- Airbag System Sync: In some cases, the new BCM may need to be synchronized with the vehicle’s Sensing and Diagnostic Module (SDM), also known as the airbag module. If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure proper brake light operation and traction control function, a brake pedal position sensor relearn procedure may be necessary. This also requires a compatible diagnostic tool.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that controls and monitors many of your vehicle’s non-engine related functions. This includes power windows, power locks, the security system, interior and exterior lighting, and wipers, among other things.
Why do you need my VIN?
Your vehicle’s VIN allows us to program the BCM with the exact software and settings for your specific model, year, and options package. This ensures the module works correctly with all other systems in your car, eliminating the need for expensive dealership programming.
Is this a plug-and-play installation?
For most vehicles, yes. Because we pre-program it, the physical installation is plug-and-play. However, as noted, some vehicles may require an additional relearn procedure for the airbag system or brake pedal position sensor using a professional scan tool.
What if my airbag light comes on after installation?
This indicates that the BCM needs to be synced with the airbag module (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ will need to be performed by a technician with a capable diagnostic tool to resolve this.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
How do I know for sure that my BCM is the problem?
While the symptoms listed are strong indicators, proper diagnosis is key. A qualified technician can use a scan tool to check for communication errors (U-codes) and test BCM inputs and outputs to confirm it is the source of the fault before you order a replacement.