Restore Your Vehicle’s Electrical System with a Reliable BCM
Are you dealing with baffling electrical issues in your Cadillac STS? Flickering lights, malfunctioning power windows, a security system that acts up, or dashboard warning lights that have a mind of their own are all classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can turn your daily drive into a frustrating ordeal. This isn’t just an inconvenience; it can affect the proper function of critical systems. This listing is for a direct-replacement Body Control Module, part number 25826125, that arrives at your door programmed and ready for installation.
We take the guesswork and extra expense out of the repair. Simply provide your vehicle’s VIN at checkout, and our technicians will flash this module with the latest GM-certified software specific to your 2010 STS. This means you can bypass the costly trip to the dealership for programming. This is the straightforward, reliable solution to get your vehicle’s electronics functioning as they should.
Case Study: A Tricky Diagnosis
I remember a 2011 Cadillac DTS that came into my shop with a laundry list of intermittent complaints. The owner reported the radio would randomly shut off, the interior lights would flicker, and occasionally the car wouldn’t recognize the key fob. No check engine light was on, but a deep scan with a pro-level tool revealed a slew of U-codes (communication errors) between various modules. After confirming power and ground integrity at the BCM connector, it was clear the module itself was failing internally, causing a communication breakdown on the CAN bus network. Replacing the BCM with a VIN-programmed unit like this one resolved all the issues in a single visit. These symptoms are incredibly common across the GM platforms that use this BCM.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the likely cause. A bad module can often generate communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-series codes.
- ✔ Erratic or non-functional 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 randomly activating or failing to set.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ Key fob not being recognized or intermittent remote start issues.
- ✔ A vehicle that won’t start despite having a good battery and starter.
A Straightforward Guide to Installation
For the handy DIYer or professional technician, installing this 2010 STS Body Control Module is a manageable job. The BCM in the 2010 Cadillac STS is typically located in the center dash area. Always confirm the location for your specific vehicle with a service manual.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: Gain access to the module. This may require removing trim panels around the center console or dashboard.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in place and securely reconnect all electrical connectors.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns: Start the vehicle. Some models may require post-installation procedures as outlined below to ensure full functionality and clear any warning lights.
Important Post-Installation Steps
Because this 2010 STS Body Control Module is the central hub for many systems, some security and sensor handshakes may be required after installation. These are standard procedures for this type of repair.
- 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: Depending on your vehicle’s specific configuration, a brake pedal position sensor relearn may be necessary to ensure the brake lights and traction control system operate correctly.
Please Note: Specific requirements can vary. We always recommend consulting a factory service manual or a certified technician for detailed instructions.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles. Please verify that your vehicle and original part number are listed below to guarantee fitment. This unit replaces the following part 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.
Fits: ACADIA 07-12, AVALANCHE 1500 10, CAPRICE 11-13, CAPTIVA SPORT 12, CTS 08-13, DTS 06-11, ENCLAVE 08-12, EQUINOX 07-09, ESCALADE 10, ESCALADE ESV 10, ESCALADE EXT 10, EXPRESS VANS 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS 08-12, SRX 07-09, STS 10, SUBURBAN 1500 10, TAHOE 10, TORRENT 07-09, TRAVERSE 09-12, VUE 08-10, YUKON 10, YUKON XL 1500 10. (Please check the detailed fitment list for specific options and IDs).
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. We use your VIN to load the latest GM software for your specific vehicle, making it ready to install out of the box.
Is there a core charge for my old BCM?
Absolutely not. You can keep your old module. There is no core charge and no need to send anything back to us.
How difficult is the installation?
For someone with moderate mechanical skill, it’s a straightforward process of removing some dash panels and swapping the module. However, if you are not comfortable working around vehicle electronics, we recommend professional installation.
Will this fix my ‘Service Security System’ message?
A faulty BCM is a very common cause of security system errors on these GM vehicles. While other issues can cause this message, replacing a bad BCM often resolves the problem.
What happens if my airbag light comes on after installation?
This is a normal security measure. The new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.