Restore Full Electrical Control to Your GM Vehicle
Are you dealing with baffling electrical issues in your 2010 Cadillac Escalade ESV? One moment the power locks don’t work, the next the interior lights are flickering, or the security system is acting up. These aren’t separate problems; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable issues. This isn’t just an inconvenience—it can affect vehicle security and visibility.
We offer a dependable and straightforward solution: a replacement Body Control Module, part number 20935349, that comes pre-programmed specifically for your vehicle. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates. This means you can skip the expensive trip to the dealership and the hassle of programming tools. You get a part that’s ready to install right out of the box, getting you back on the road with confidence.
A Technician’s Notebook: The Ghost in the Machine
A customer brought in their 2010 Yukon—a vehicle that shares its platform with the Escalade—with a list of complaints that sounded like a poltergeist had taken up residence. The radio would turn on by itself, the driver’s side window wouldn’t go down, and the anti-theft light would stay on, sometimes preventing the truck from starting. They had already replaced the battery and checked fuses, but the gremlins persisted. After connecting my scan tool, I saw multiple communication loss codes with various modules. In my 20+ years of experience, a flurry of unrelated body electrical faults almost always points to one culprit: the BCM. We installed a VIN-programmed BCM, and instantly, all the bizarre symptoms vanished. It’s a perfect example of how one central component can create widespread chaos when it fails.
Is Your Vehicle Showing These Signs of BCM Failure?
- ✔ Erratic or non-working power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system or alarm malfunctioning or falsely triggering.
- ✔ The horn sounding unexpectedly.
- ✔ A persistent battery drain with no other obvious cause.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
- ✔ Warning lights on the dashboard, especially for the airbag or anti-theft system.
Your Straightforward BCM Installation Guide
Installing your new BCM is manageable for a DIYer with basic tools. While the exact location varies by model (see fitment list), the process is generally similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2010 Escalade ESV, the BCM is typically found under the steering column, accessible from the driver’s side footwell. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
- Reconnect Battery: Re-attach the negative battery terminal.
- Post-Installation Procedures: After installation, two critical steps are often required. You will need a capable diagnostic tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the airbag light. Some vehicles may also require a Brake Pedal Position Sensor recalibration to ensure proper brake light and stability control function.
Verified Fitment for a Wide Range of GM Vehicles
This BCM is a direct replacement for part number 20935349 and is interchangeable with numerous other part numbers. It fits a vast array of GM cars, trucks, and vans. Please verify your model and options below. Note: Part location is in parentheses.
Vehicle Compatibility:
ACADIA 07-12 (LH dash) | AVALANCHE 1500 10 (under steering column) | CAPRICE 11-13 | CAPTIVA SPORT 12 (center dash) | CTS 08-13 (LH/RH dash) | DTS 06-11 (RH center dash) | ENCLAVE 08-12 (LH dash) | EQUINOX 07-09 (center dash) | ESCALADE/ESV/EXT 10 (under steering column) | EXPRESS/SAVANA VANS 08-12 (center dash) | G8 08-09 (center dash) | HUMMER H2 08-09 (LH firewall) | IMPALA 06-13 (LH dash) | LUCERNE 06-11 (right side dash) | MONTE CARLO 06-07 (LH steering column) | OUTLOOK 07-10 (center dash) | SRX 07-09 (LH dash) | STS 10 (center dash) | SUBURBAN 1500 10 (under steering column) | TAHOE 10 (under steering column) | TORRENT 07-09 (center dash) | TRAVERSE 09-12 (LH dash) | VUE 08-10 (center dash) | YUKON/YUKON XL 1500 10 (under steering column)
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, seats, interior/exterior lighting, security system, wipers, and more, ensuring they all work together.
Why is a pre-programmed BCM a better choice?
A pre-programmed BCM saves you a significant amount of time, money, and hassle. It arrives ready for installation, allowing you to avoid a trip to the dealership and their expensive programming fees. It’s the most efficient way to complete the repair.
Do I need to send my old BCM back (core charge)?
This listing does not require a core return. You can keep or responsibly dispose of your old module without any core charge.
What happens if I don’t perform the post-installation procedures?
If you don’t perform the ‘Setup SDM Primary Key’ procedure, the airbag warning light will likely stay illuminated on your dash. Skipping the brake pedal recalibration (if required for your vehicle) could lead to improper brake light operation or issues with the stability control system. These steps are vital for safety and full functionality.
Is this a difficult part to replace for a DIYer?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is typically accessing the module, which is often tucked under the dashboard. Our pre-programming service removes the most complex part of the job—the software configuration.