Restore Your Vehicle’s Electrical System
Are you dealing with strange and frustrating electrical problems in your GM vehicle? Flickering lights, malfunctioning power windows or locks, a security system that acts up, or even a car that won’t start can all point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing symptoms. This pre-programmed GM Body Control Module is the definitive solution to get your vehicle operating correctly again.
Is Your GM Body Control Module Failing?
A failing BCM doesn’t always trigger a check engine light, making it difficult to diagnose. Look out for these common indicators:
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working or operating on their own.
- ✔ The security system or keyless entry system malfunctioning.
- ✔ The horn sounding unexpectedly or not working at all.
- ✔ Wipers behaving erratically or not turning off.
- ✔ A ‘Service Theft System’ or similar warning message on the instrument cluster.
- ✔ A no-start condition where the engine cranks but won’t fire up due to a security fault.
A True Plug-and-Play Solution
The biggest hurdle in replacing a BCM is the need for expensive, dealer-specific programming. We eliminate that step entirely. Simply provide us with your vehicle’s 17-digit VIN during checkout, and we will program the module with the latest GM software specific to your car. This ensures that when you receive the part, it’s ready for installation without any additional programming required. This module is a direct replacement for a wide range of part numbers, including 15872421, 22860591, 25892622, and many more, covering vehicles like the Chevy Impala, GMC Acadia, Cadillac DTS, and Chevy Express vans.
Important Post-Installation Information
While this module is programmed for a simple installation, some vehicles may require a ‘relearn’ or ‘sync’ procedure for specific subsystems. These can typically be performed with a high-end diagnostic scan tool.
- Airbag System Sync: If the airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that acts as the central hub for your vehicle’s body-related electronic features. It controls functions that aren’t related to the engine, such as power windows, locks, lights, wipers, security systems, and more.
Does this BCM require any programming?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN when you order, and the module will arrive ready to install.
How do I find my original BCM part number?
The part number is printed on a sticker on the case of your original BCM. Its location varies by model but is often found under the dashboard on the driver’s side, in the center console, or behind the glove box.
What if my airbag light comes on after I install this part?
This indicates that the new BCM needs to be synchronized with your vehicle’s airbag system (SDM). A technician with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge?
No, there is no core charge for this part. You can keep your old module.
Will this fix my no-start problem?
If your no-start issue is caused by the vehicle’s anti-theft system (Passlock/Passkey) being triggered by a faulty BCM, then yes, this programmed module should resolve the problem.