Is Your Buick LaCrosse Experiencing Strange Electrical Problems?
If your 2012-2013 Buick LaCrosse is suffering from a host of baffling electrical issues—from flickering interior lights and malfunctioning power windows to a security system that won’t cooperate—the culprit is often a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can create a cascade of frustrating and seemingly unrelated problems. This listing is for a replacement BCM, part number 13580696, that is professionally programmed with your vehicle’s original data, providing a seamless and effective solution.
From the Diagnostic Bay
We once had a 2012 Buick Regal come in with a complaint of intermittent no-starts and a security light that would flash randomly. The owner had already replaced the battery and checked all the fuses, but the problem persisted. After connecting our diagnostic tool, we found multiple communication error codes pointing towards the BCM. Instead of a complex and expensive rewiring job, we performed a BCM clone. By transferring the data from the original, failing unit to a quality replacement, we were able to solve all the electrical gremlins in one go. The customer was back on the road the next day, saving hundreds compared to a dealership visit.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ Malfunctioning windshield wipers or climate control systems.
- ✔ The vehicle’s security system or keyless entry fails to operate correctly.
- ✔ Warning lights appearing on the dashboard without a clear cause.
- ✔ Communication errors with other vehicle modules, leading to a no-start condition.
The Simple, Reliable Solution: Our Mail-In Programming Service
Forget about costly dealership programming and lengthy vehicle downtime. Our specialized service makes replacing your BCM straightforward. Here’s how it works:
- Place Your Order: Purchase this BCM service. We will then contact you with shipping instructions.
- Ship Us Your Original BCM: Carefully remove your original BCM and send it to us.
- We Handle the Programming: Upon receipt, our technicians will transfer the critical data—including VIN, mileage, and key information—from your original module to this replacement unit.
- Receive Your Ready-to-Install BCM: We ship the newly programmed BCM back to you. Installation is as simple as plugging it in, with no further programming required.
Technical Specifications and Fitment for 2012-2013 LaCrosse BCM
This Body Control Module is a direct replacement for part number 13580696 and is also compatible with several other part numbers, including 123589093, 13588446, 13584692, and 13583542. While it is a primary fit for the 2012-2013 Buick LaCrosse, it also fits a wide range of other GM vehicles. Please verify the part number on your original module to ensure compatibility.
- Buick Regal: 2012
- GMC Terrain: 2012
- Chevy Spark: 2013
- Chevy Camaro: 2012-2014
- Chevy Equinox: 2012
- Cadillac SRX: 2012
- Buick Verano: 2012
- Chevy Volt: 2012
- Buick LaCrosse: 2012-2013
Important Post-Installation Information
While our programming service makes this a plug-and-play part, some vehicles may require minor recalibrations after installation. These are simple procedures for any qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the airbag system with the new BCM. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control functionality.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions, such as power windows, door locks, interior and exterior lighting, security system, and climate controls.
How does this mail-in programming service work?
You purchase the service, ship your original BCM to us, and we transfer all the necessary vehicle-specific data to the replacement BCM. We then ship the programmed module back to you, ready for installation.
Is this part truly plug-and-play?
Yes, because we clone the data from your original module, this part will not require any additional programming at a dealership. In some rare cases, a simple relearn procedure for the airbag or brake pedal sensor may be needed, as detailed above.
Do I need to send my keys or any other parts with my BCM?
No, we only need your original BCM. All key data is stored within the module, so there is no need to send your keys.
What happens if my airbag light is on after I install the BCM?
This indicates that the BCM needs to be synchronized with the airbag system’s Supplemental Deployment Module (SDM). A technician with a professional diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Which part numbers does this BCM replace?
This module, 13580696, is a direct replacement for several part numbers, including 123589093, 13588446, 13584692, and 13583542. Always match the part number from your original unit for guaranteed compatibility.