Restore Full Functionality to Your Cadillac’s Electronics
Is your 2008-2013 Cadillac CTS plagued by bizarre electrical issues? Flickering lights, malfunctioning power windows, a dead instrument cluster, or a security system that acts on its own are common signs of 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 frustrating and difficult-to-diagnose problems. This replacement Body Control Module, part number 25826124, is the definitive solution to get your luxury sedan operating as it should.
From the Diagnostic Bay
We had a 2011 CTS in the shop that was driving the owner crazy. The radio would randomly turn off, the interior lights would pulse, and occasionally the car wouldn’t start, just showing a ‘Service Theft System’ message. The owner had already replaced the battery and checked the grounds. After connecting our diagnostic tool, we saw multiple communication loss codes pointing to the BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our pre-programmed units. The car started right up, and every single electrical gremlin was gone. It’s a common failure, and having a ready-to-install solution is a game-changer.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ ‘Service Electrical System’ or ‘Service Theft System’ warnings on the dash.
- ✔ Problems with the keyless entry and security system.
- ✔ Unexplained battery drain when the vehicle is off.
A Simple, Programmed Solution for Your 2008-2013 CTS BCM
Don’t let a faulty module keep you off the road or force you into an expensive dealership repair. We make the process simple. This genuine GM module is professionally programmed with the latest software updates specifically for your vehicle using the VIN you provide. This ensures perfect compatibility and function right out of the box, eliminating the need for additional programming fees or special tools. This is a direct-fit replacement for a wide range of GM vehicles, ensuring reliability and longevity.
Installation and Post-Install Notes
Installation is straightforward for a knowledgeable DIYer or any professional technician. After installing the new BCM, some vehicles may require additional steps:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control operation.
- No Core Charge: You are not required to return your old, faulty module.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module do on a Cadillac CTS?
The BCM acts as the central computer for your car’s body-related electronic features. It controls functions like power windows, locks, lights, wipers, the security system, and the instrument cluster.
Is this BCM truly plug-and-play?
Yes, it is. We program the module to your vehicle’s specific VIN before shipping. This means you can install it without needing to visit a dealership for expensive programming. In some rare cases, minor relearn procedures may be required post-installation.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN to ensure it is programmed correctly for your exact vehicle.
What if my airbag light is on after I install the BCM?
If the airbag light comes on, it means the new BCM needs to be synced with the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ 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.