Is Your Cadillac SRX Experiencing Strange Electrical Issues?
If your 2007-2009 Cadillac SRX is plagued by baffling electrical problems like flickering lights, malfunctioning power windows, a dead key fob, or random warning messages, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of frustrating and unpredictable issues. This isn’t just an inconvenience; it can affect the safety and security of your vehicle.
We had a 2008 SRX come into the shop with a list of complaints that seemed unrelated. The dome light would stay on, the driver’s power lock wouldn’t work with the fob, and the radio would randomly shut off. The owner had already replaced the battery and checked every fuse. After hooking up our diagnostic tool, we saw multiple communication errors pointing back to one source. We installed a VIN-programmed BCM, and instantly, all the gremlins vanished. It’s a perfect example of how one single component can cause widespread, confusing problems.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system acting up, or the car alarm going off for no reason.
- ✔ Keyless entry remote (fob) not working or responding intermittently.
- ✔ Unexplained battery drain that leaves you with a dead battery.
- ✔ Dashboard warning lights, like the airbag or security light, illuminating.
- ✔ HVAC (heating and air conditioning) controls not responding correctly.
Why Choose Our Programmed 2007-2009 SRX BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by programming the module to your vehicle’s specific VIN before it ships. This means you receive a part that is ready to be installed right out of the box, eliminating the need for a costly trip to the dealership for programming. This module is a direct replacement for part number 20935349 and a wide range of other GM part numbers, ensuring perfect compatibility and function.
Upon installation, some vehicles may require simple relearn procedures. For example, if your airbag light is on, a professional scan tool may be needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary to ensure proper brake light and traction control operation. These are standard procedures when replacing a BCM and are crucial for full system integration.
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 a wide variety of electronic accessories, such as power windows, locks, lights, wipers, the security system, and more.
Is this BCM really plug-and-play?
Yes, for the most part. We program it to your VIN so it communicates with your vehicle correctly. However, as with any BCM replacement, some minor post-installation relearn procedures for systems like the airbags or brake sensor may be required.
How do I provide my vehicle’s VIN?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit VIN, or add it to the notes section during checkout. We cannot ship your order without it.
Will this fix my specific problem?
This module will correct any issue directly caused by a faulty BCM. If your vehicle is experiencing the symptoms listed above, there is a very high probability that this is the solution you need.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
Does this fit other vehicles besides the SRX?
Yes, this BCM hardware fits a wide variety of GM vehicles. However, this specific listing is for a 2007-2009 SRX BCM, and the programming we provide will be tailored specifically for that model and your VIN.