Restore Your GM’s Electronic Stability and Comfort
Is your 2010 GMC Yukon XL 1500 acting possessed? Flickering lights, malfunctioning power windows or locks, a security system that won’t cooperate, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can turn your reliable SUV into a source of daily headaches. This isn’t just an inconvenience; it can affect safety features like exterior lighting and anti-theft systems. Stop chasing electrical gremlins and get the definitive solution.
A Technician’s Notebook: The Case of the Spooky SUV
I remember a 2010 Yukon XL 1500 rolling into my bay last winter. The owner was at his wit’s end. The dome lights would stay on, the radio presets would randomly reset, and the remote start was useless. He’d already replaced the battery and checked fuses with no luck. After connecting my scan tool, I saw a flurry of communication errors (U-codes) pointing to the BCM. These modules, often located under the dash, are susceptible to voltage irregularities and internal solder joint fatigue over time. We swapped in a VIN-programmed BCM, and it was like an exorcism—all the strange electrical issues vanished instantly. This is a repair I’ve done hundreds of times, and a pre-programmed module is the key to a fast, successful fix without a trip to the dealer.
Why is This Pre-Programmed BCM the Smart Choice?
Traditionally, replacing a BCM meant buying the part, having your vehicle towed to a dealership, and paying them significant labor fees for programming. We eliminate that entire ordeal. By providing us with your vehicle’s VIN at checkout, you receive a 2010 Yukon XL 1500 BCM that is flashed with the latest GM software and coded specifically to your vehicle’s options. It arrives ready for installation, saving you hundreds in dealership fees and days of downtime. This is the most efficient way to get your truck back to 100% functionality.
Common Signs of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on, flickering, or not turning on.
- ✔ The security system or keyless entry failing to work correctly.
- ✔ A “Service Theft System” or other warnings on the instrument cluster.
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0100.
- ✔ The engine cranks but refuses to start due to anti-theft system confusion.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On most GM trucks and SUVs like the Yukon, the BCM is located under the driver’s side of the dashboard, near the steering column. 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 must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting) for 10-15 seconds to allow the systems to initialize. Then, start the vehicle and test all functions: lights, locks, windows, radio, etc.
Important Post-Installation Information
While our programming handles the majority of the setup, some vehicles may require additional steps after installation. Please be aware of the following:
- Airbag System Sync: If the 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: In some cases, a brake pedal position sensor recalibration may be necessary to ensure correct brake light and traction control operation.
- No Core Charge: You are not required to return your old module. This saves you the cost and hassle of a core return.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a qualified professional if you are unsure about any step.
Verified Fitment Across the GM Family
This Body Control Module is a direct replacement for part number 20839063 and a wide range of other interchangeable part numbers. It is compatible with numerous GM vehicles. Please verify your part number or consult the list below. Note that some models require matching the ID number on your original module.