Restore Full Functionality to Your GM Vehicle
If you’re dealing with bizarre electrical gremlins in your 2010 Cadillac Escalade ESV—like power windows with a mind of their own, flickering dash lights, or a security system that prevents your vehicle from starting—a failing Body Control Module (BCM) is the likely culprit. As the central nervous system for your vehicle’s comfort and convenience features, a faulty BCM can cause widespread and frustrating issues. This replacement BCM, part number 15921352, is the reliable, cost-effective solution to get your vehicle back in perfect working order.
A Technician’s Notebook: The Case of the Haunted SUV
I’ll never forget a 2010 Escalade ESV that came into my shop. The owner was at his wit’s end. The radio would switch stations randomly, the interior lights wouldn’t turn off, and the alarm would go off in the middle of the night. He’d already replaced the battery twice. After connecting my scan tool, I saw multiple communication error codes (U-codes) pointing to a network problem. Instead of chasing ghosts, I went straight to the BCM. A quick voltage drop test on the main power and ground circuits confirmed my suspicion: the BCM was failing internally. Swapping in a VIN-programmed module like this one solved every single issue instantly. It’s a classic failure I’ve seen on hundreds of these GM platforms.
Is Your Vehicle Showing These Common BCM Failure Signs?
A failing BCM doesn’t always trigger a check engine light. Instead, watch for these performance and electrical symptoms:
- ✔ Erratic power windows, door locks, or mirrors that work intermittently or not at all.
- ✔ The security or anti-theft light stays on, often resulting in a no-start condition.
- ✔ Interior dome lights or dashboard lights flicker, stay on, or won’t turn on.
- ✔ Horn honking unexpectedly or not working when you press it.
- ✔ Communication DTCs like U0140, U0155, or U0164 stored in other modules.
- ✔ Rapid battery drain with no obvious cause, leading to a dead battery overnight.
The Smart Solution: Pre-Programmed for You
The biggest headache with replacing a BCM has always been the mandatory, and expensive, trip to the dealership for programming. We eliminate that step entirely. When you purchase this 2010 Escalade ESV BCM, you provide us with your vehicle’s VIN. Our technicians will then program the module with the latest, most stable software from General Motors specifically for your vehicle’s configuration. It arrives at your door ready for installation, saving you time, towing fees, and dealership labor costs.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- ✔ Locate the BCM: On a 2010 Escalade ESV, the Body Control Module is typically located under the driver’s side of the dashboard, near the steering column.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- ✔ Install the New Module: Mount the new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly, ensuring they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal. The vehicle will now power up with the new BCM.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, radio, etc. Note that some vehicles may require the post-installation procedures mentioned below.
Important Post-Installation Information
While this module is designed for a simple installation, some GM vehicles require a final ‘handshake’ between modules. Depending on your specific model and options, the following may be necessary:
- ✔ Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- ✔ Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn procedure might be required.
Disclaimer: We offer this module with no core charge. You can keep your old part. For specific procedures, always consult your vehicle’s factory service manual or a certified automotive technician.
Guaranteed Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your vehicle is on this list and that the location matches. This part replaces the following numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
Do I need to program this BCM?
No. This module comes fully programmed to your vehicle using the VIN you provide during checkout. It is ready for installation right out of the box.
What information do I need to provide?
After your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This ensures we load the correct software for your specific options.
Is there a core charge or do I have to send my old part back?
There is absolutely no core charge for this part. You can keep your original module.
Where is the BCM located on my 2010 Escalade ESV?
The Body Control Module on the 2010 Escalade ESV is located under the driver’s side dashboard, attached near the steering column assembly.
What does the ‘Setup SDM Primary Key’ procedure involve?
This is a security procedure required on some vehicles to sync the new BCM with the airbag control module (SDM). It can only be performed with a professional-grade diagnostic scan tool and is only necessary if the airbag light comes on after installation.