Is Your Cadillac SRX Experiencing Strange Electrical Issues?
If your 2007-2009 Cadillac SRX is suffering from flickering lights, malfunctioning power windows or locks, or random warning messages on the dash, a failing Body Control Module (BCM) is the most likely cause. The BCM acts as the central nervous system for your vehicle’s body electronics, coordinating everything from the interior lights and security system to the power accessories. When it fails, it can create a host of confusing and frustrating problems.
From the Diagnostic Bay
We had a 2008 GMC Acadia (which uses this same BCM) come into the shop with a laundry list of bizarre symptoms. The radio would turn on and off by itself, the dome lights wouldn’t work, and the liftgate would intermittently refuse to open. The owner had already replaced the battery, but the problems persisted. After a quick scan, we pinpointed a communication fault with the BCM. Installing a VIN-programmed replacement like this one resolved every single issue. The vehicle’s electronics were stable again, and the customer was relieved to have a simple, effective solution without a massive dealership bill.
Diagnosing a Faulty 2007-2009 SRX BCM
A failing BCM can manifest in numerous ways, often mimicking other problems. Here are the most common signs that your Body Control Module needs replacement:
- ✔ Power windows, mirrors, or door locks working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The vehicle’s security system acting erratically or preventing the car from starting.
- ✔ False warnings appearing on the instrument cluster (e.g., “Service Airbag,” “Service StabiliTrak”).
- ✔ Issues with the heating and A/C blower motor or controls.
- ✔ Key fobs not being recognized by the vehicle.
A True Plug-and-Play Solution
Don’t let a faulty module keep you off the road. This Body Control Module is a direct-fit replacement for your vehicle, solving these issues effectively. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your SRX. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money. It arrives at your door ready for installation.
Installation and Post-Install Notes
While installation is straightforward for those with mechanical experience, some vehicles may require additional steps after the new BCM is installed. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” function to sync the systems.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control functionality.
This module is a guaranteed fit for part number 15921352 and is interchangeable with a wide range of other GM part numbers, including: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls all the non-engine related electronic functions, such as power windows, locks, lights, security system, and climate controls.
Do I need to have this BCM programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before shipping it to you. It arrives ready to be installed, saving you the time, cost, and hassle of a dealership visit.
What do I need to do after I purchase?
After you place your order, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive your VIN to perform the necessary programming.
Is this part difficult to install?
For the 2007-2009 SRX, the BCM is located on the left-hand (driver’s) side of the dash. Installation typically involves removing a few trim panels for access and disconnecting the electrical connectors. It is a manageable job for a DIYer with basic tools.
Will this fix my airbag light?
If the airbag light is caused by a faulty BCM, this part will resolve the root cause. However, after installation, the airbag system may need to be re-synced with the new BCM using a professional diagnostic tool to turn the light off.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.