Restore Full Electronic Functionality to Your Vehicle
Are you battling frustrating and unpredictable electrical problems in your vehicle? Flickering lights, malfunctioning power windows, erratic door locks, or a security system that won’t cooperate are all classic signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your car’s body electronics, and when it starts to fail, it can create a cascade of confusing issues. This replacement Body Control Module, part number 25910474, is the definitive solution to restore your vehicle’s systems to their original, reliable operation.
Unlike a generic part from a local store, this module is not a one-size-fits-all solution. We provide a crucial service by programming the module specifically to your vehicle’s Vehicle Identification Number (VIN) before it ships. This VIN-specific programming ensures that the BCM communicates flawlessly with all other computers in your vehicle, from the engine control module to the anti-lock brake system. This eliminates compatibility conflicts and the need for expensive dealership programming, saving you significant time and money.
From the Diagnostic Bay
We had a 2010 Cadillac STS come into the shop with a laundry list of bizarre symptoms. The owner complained that the radio would sometimes change stations on its own, the driver’s side window would work intermittently, and the key fob would occasionally fail to unlock the doors. There were no check engine lights, and initial scans showed no consistent fault codes. After chasing wires and checking grounds, we focused on the BCM. These intermittent, seemingly unrelated electrical gremlins are textbook symptoms of an internal BCM failure. Swapping in a VIN-programmed BCM like this one resolved every single issue instantly. The vehicle’s electronics were stable and predictable again, proving that the BCM was the true source of the problem.
Diagnosing a Faulty 2010 STS Body Control Module
A failing BCM can be difficult to diagnose because its symptoms often mimic other problems like bad wiring or faulty switches. However, if you’re experiencing multiple issues from the list below, the BCM is the most likely culprit. This module is the direct solution for these common failures.
Common Symptoms of BCM Failure
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ Malfunctioning windshield wipers or washers.
- ✔ Security system issues, including false alarms or failure to recognize the key fob.
- ✔ Problems with the instrument cluster gauges or warning lights.
- ✔ Radio or climate control systems behaving erratically.
- ✔ A parasitic battery drain that kills your battery overnight.
Installation and Post-Install Requirements
Installation is straightforward for a qualified technician or experienced DIYer. After installing the module, some vehicles may require additional relearn procedures to ensure all systems are synchronized. These are simple steps that can be performed with a compatible high-end scan tool.
Airbag System Sync: If the airbag warning light is illuminated after installation, the ‘Setup SDM Primary Key in BCM’ procedure must be performed. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be necessary. This ensures the brake lights function correctly and that the traction control and stability control systems receive accurate data from the sensor.
This module is a direct replacement for a wide range of GM part numbers, including 10382479, 15880684, 20815898, 22860591, 25892622, and many more, making it a versatile solution for numerous vehicles including the Cadillac STS, DTS, CTS, Chevrolet Impala, Tahoe, GMC Acadia, and Savana vans. Please verify your part number and consult the fitment list to ensure compatibility.
Frequently Asked Questions
What does the Body Control Module do on my 2010 Cadillac STS?
The BCM is a computer that controls and monitors most of your vehicle’s non-engine related electronic functions. This includes power windows, door locks, interior and exterior lighting, the alarm system, climate controls, and the instrument panel.
Do I need to program this BCM?
No. We handle the programming for you. Simply provide us with your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your car. This makes the installation process much simpler.
Is this a difficult part to replace?
For someone with automotive repair experience, the replacement is typically straightforward. The BCM is usually located under the dashboard. However, due to the potential need for post-installation relearn procedures, we recommend installation by a professional technician with access to a proper diagnostic scan tool.
What happens if I don’t perform the post-installation procedures?
If required for your vehicle, skipping these procedures can lead to lingering issues. For example, the airbag light may stay on, or the brake lights might not function correctly, which are serious safety concerns. It’s crucial to ensure all systems are properly synced after installation.
Will this fix a parasitic battery drain?
In many cases, yes. A common failure mode for a BCM is an internal short that causes it to stay ‘awake’ after the car is turned off, slowly draining the battery. If you’ve ruled out other causes, a faulty BCM is a very likely culprit for a parasitic drain.