Restore Your Vehicle’s Electrical Stability
Are you battling bizarre electrical issues in your 2011-2013 Chevrolet Caprice? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). The BCM is the central command for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it’s a matter of reliability and safety. This replacement Body Control Module is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN with the latest GM software updates.
From the Diagnostic Bay: The Phantom No-Start
I once had a 2012 Caprice PPV in the shop that was giving the department mechanics fits. It had an intermittent no-start condition with no rhyme or reason. Sometimes the key fob wouldn’t work, other times the dash lights would flicker wildly. After checking the battery, starter, and grounds—all of which were fine—I hooked up my professional scan tool. The key was the sheer number of communication error codes (U-codes) pointing back to one source. The BCM was failing internally, periodically dropping communication with the powertrain and security modules. Swapping in a VIN-programmed BCM like this one solved every single issue in one shot, saving hours of further diagnostic guesswork.
Is Your Vehicle Showing These Common BCM Failure Symptoms?
- ✔ Intermittent or total failure of power windows, door locks, or interior/exterior lighting.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Unresponsive key fob or push-to-start system.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0140 (Lost Communication With Body Control Module) or various B-series codes.
- ✔ Erratic behavior from the instrument cluster gauges or warning lights.
- ✔ A persistent battery drain that leaves you with a dead battery overnight.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On the 2011-2013 Caprice, the Body Control Module is typically located in the cabin, under the driver’s side of the dashboard. You may need to remove a lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical connectors into their correct ports.
- ✔ Power Up and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all related functions—windows, locks, lights, and starting the engine.
Important Post-Installation Steps
While this BCM is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new module. Depending on your specific model and options, you may need a qualified technician with a high-level scan tool to perform the following relearn procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is necessary to sync the systems.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be required.
Disclaimer: We always recommend consulting a factory service manual or a certified technician for procedures specific to your vehicle.
Verified Vehicle Compatibility
This BCM, part number 20839063, is a direct replacement for a wide range of General Motors vehicles. While this listing is for the 2011-2013 Chevrolet Caprice, it also fits the models listed below. We flash it specifically for the vehicle you provide via VIN. It is a direct replacement for part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, or 22860591
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-12 Body Control (BCM)
EXPRESS 3500 VAN 08-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-12 Body Control (BCM)
SAVANA 3500 VAN 08-12 Body Control (BCM)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping. This saves you the time, expense, and hassle of a dealership visit.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle.
Is there a core charge for this part?
Absolutely not. There is no core charge. You can keep your old module, so you won’t have to worry about the cost or hassle of shipping it back.
Will this fix my car’s security light and no-start problem?
A faulty BCM is a very common cause of security system issues that prevent the engine from starting. If the BCM is the root cause of the problem, this part is the correct fix.
What if I order the wrong part?
Providing your VIN is the best way to ensure compatibility. The extensive fitment list and interchangeable part numbers help confirm the correct part, but the VIN-specific programming is the final check to guarantee it’s right for your car.