Restore Full Functionality to Your GM Vehicle
Are you battling bizarre electrical issues in your vehicle? Flickering lights, malfunctioning power windows, a security system that has a mind of its own, or even a no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can create a cascade of frustrating and difficult-to-diagnose problems. This is a common issue I’ve seen countless times in my 20+ years of diagnostics, especially in this generation of GM vehicles.
Instead of facing a costly trip to the dealership for a new module and expensive programming, we offer a streamlined and reliable solution. This listing is for a replacement BCM (part number 13580696, which is compatible with 13583542 and others) that is professionally programmed using the data from your original module. This cloning process ensures a seamless, plug-and-play installation. We transfer all the critical information, including VIN, immobilizer data, and vehicle-specific options, so the replacement BCM is a perfect match for your car right out of the box.
Case Study: A Tricky Diagnosis
A customer brought in a 2012 Volt with a laundry list of intermittent complaints: the radio would sometimes not turn on, the driver’s side power window would work one day but not the next, and the ‘Service Theft Deterrent System’ message would appear randomly. Scanning for codes revealed a mess of communication errors, including the infamous U0140 (Lost Communication With Body Control Module). After verifying the network wiring was intact, all signs pointed to an internal BCM failure. Instead of a multi-day wait and a hefty bill from the dealer, we used our cloning service. The customer shipped us their faulty BCM, we programmed the replacement, and they had their Volt back on the road in a fraction of the time and cost, with all electrical gremlins gone for good.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a failing BCM could be the cause. In my shop, these are the top indicators we look for when diagnosing a faulty 2012 Volt BCM or related GM module.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Instrument cluster warning lights appearing without reason (e.g., ABS, Airbag, Traction Control).
- ✔ Vehicle will not start, or the starter does not engage, despite a good battery.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs) like U0140, U0155, or B1001.
A Straightforward Guide to Our Mail-In Service
Our process is designed to be simple and get you back on the road quickly. There’s no need for special tools or dealer appointments for programming.
- Place Your Order: Purchase this service and ensure your contact information is accurate.
- We’ll Contact You: Our team will reach out with clear, step-by-step instructions on how to remove your BCM and where to ship it.
- Remove & Ship: Carefully disconnect your battery, remove your original BCM, and ship it to our facility. For the 2012 Volt, the BCM is located in the right-hand (passenger side) of the engine compartment.
- Cloning Process: Once we receive your module, our technicians will extract the data and program the replacement unit within 1-2 business days.
- Receive & Install: We ship the plug-and-play BCM back to you with tracking. Simply install it, reconnect your battery, and your vehicle’s body electronics will be restored.
Important Post-Installation Notes
While our cloning makes this a direct-fit solution, some GM systems require a ‘handshake’ after a new module is introduced. Be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a recalibration of the brake pedal position sensor may be needed to ensure proper brake light and stability control function.
- No Core Charge: You can keep your original module. There is no core charge or need to send it back after the service.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician if you are unsure.
Verified Vehicle Compatibility
This BCM and programming service are compatible with a wide range of GM vehicles. Please verify your part number and model from the list below. This module is a direct replacement for part numbers 13580696, 123589093, 13588446, 13584692, and 13583542.
- Buick LaCrosse: 2012, 2013
- Buick Regal: 2012
- Buick Verano: 2012
- Cadillac SRX: 2012
- Chevrolet Camaro: 2012, 2013, 2014
- Chevrolet Equinox: 2012
- Chevrolet Spark: 2013
- Chevrolet Volt: 2012
- GMC Terrain: 2012
Frequently Asked Questions
How does the mail-in cloning service work?
After you purchase, we’ll email you instructions. You ship your original BCM to us. We copy its unique data to the replacement BCM and ship the newly programmed module back to you. This makes it plug-and-play, avoiding dealer programming.
Will this fix my specific problem?
This service corrects issues caused by a faulty BCM. If you’re experiencing multiple, strange electrical problems like those listed above, it is very likely the solution. A proper diagnosis is always recommended to confirm the BCM is the root cause.
How long does the programming process take?
Once we receive your original module, our technicians typically complete the programming and ship your replacement BCM within 1-2 business days.
Do I need to send my keys with the BCM?
No, you do not need to send your keys. We clone all the necessary security data directly from your original BCM module, so your existing keys will work perfectly upon reinstallation.
Is there a core charge for my old BCM?
No, there is no core charge. After we have cloned the data from your original module, you are free to keep it. We only need it for the initial data transfer.