Are you battling frustrating and unpredictable electrical issues in your vehicle? One moment the power windows work, the next they don’t. Perhaps the security light is flashing for no reason, or you’re dealing with intermittent starting problems. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central hub for your car’s body electronics, a faulty BCM can create chaos. This listing offers a straightforward, reliable solution: a professionally programmed BCM, ready for installation upon arrival.
This is not just a part; it’s a complete service. We take the complexity out of the repair by cloning the essential data from your original BCM onto this replacement unit. This means the replacement module will be a perfect electronic match for your vehicle, preserving your specific settings and security information. The result is a true plug-and-play solution that eliminates the need for an expensive trip to the dealership for programming. Simply send us your original module, and we’ll handle the rest, getting you back on the road quickly and affordably.
Case Study: A Tricky Diagnosis
I remember a 2012 GMC Terrain that came into my shop with a laundry list of bizarre symptoms. The owner complained of the radio turning off randomly, the dome lights flickering, and a persistent ‘Service StabiliTrak’ message. Initial scans showed a dozen intermittent communication codes (U-codes), pointing fingers at multiple modules. A less experienced tech might have started replacing parts randomly. However, after seeing this pattern hundreds of times, I knew the real culprit was likely the BCM. We swapped in a known-good BCM for a quick test, and all the issues vanished. This experience highlights how a single failing 2013 Spark BCM (or its equivalent in other models) can mimic a multitude of other problems, making a reliable, correctly programmed replacement essential for an accurate fix.
Common Symptoms of a Failing BCM
- ✔️ Intermittent or non-functional power windows, locks, or mirrors.
- ✔️ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔️ False security system alarms or a persistent anti-theft light.
- ✔️ Dashboard warning lights (like Airbag, ABS, or Traction Control) illuminating without a clear cause.
- ✔️ Communication error codes (often U-codes) stored in the system, indicating a loss of connection with other modules.
- ✔️ Problems with the key fob or remote start system.
- ✔️ In some cases, a no-start or crank-no-start condition.
A Straightforward Guide to Installation
- âś” Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electronic component replacement.
- âś” Locate Your BCM: The BCM’s location varies by model. For the 2013 Spark, it’s typically found in the left lower A-pillar area. For other models, it may be under the dash or in a kick panel. Consult a service manual for your specific vehicle.
- âś” Remove the Original BCM: Carefully disconnect all electrical connectors from the module. Then, unbolt or unclip the module from its mounting bracket. Be gentle with the connectors to avoid damaging the pins or wiring.
- âś” Install the New BCM: Mount your newly programmed BCM in the same location and securely reconnect all electrical connectors.
- âś” Final Steps: Reconnect the negative battery terminal. Start the vehicle and test all functions controlled by the BCM (lights, locks, windows, etc.) to confirm the repair is successful.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. Please 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 is necessary. This requires a professional-grade scan tool to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn might be needed to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Always consult a factory service manual or a certified technician if you are unsure about any part of the installation or post-installation process.
Verified Vehicle Compatibility
This BCM service is compatible with part number 13588446 and interchanges with 13580696, 123589093, 13584692, and 13583542. It is confirmed to fit the following vehicles:
- 2013 Chevrolet Spark (Body Control (BCM); left lower a-pillar)
- 2012 Buick Regal (Body Control (BCM); LH dash)
- 2012-2013 Buick LaCrosse (Body Control (BCM); LH kick panel, ID 13580696)
- 2012 Buick Verano (Body Control (BCM); below center of dash)
- 2012-2014 Chevrolet Camaro (Body Control (BCM); RH dash)
- 2012 Chevrolet Equinox (Body Control (BCM); LH side dash)
- 2012 Cadillac SRX (Body Control (BCM); LH dash, ID 13580696)
- 2012 GMC Terrain (Body Control (BCM); LH side dash)
- 2012 Chevrolet Volt (Body Control (BCM); RH engine compartment)
By purchasing this service for your 2013 Spark BCM, you are choosing a cost-effective and reliable path to resolving your vehicle’s electrical problems. There is no core charge—you can keep your original module. Let us put our 20+ years of diagnostic and programming experience to work for you.
Frequently Asked Questions
How does the cloning service work?
After you purchase, we will contact you with instructions to ship your original BCM to us. Once we receive it, we extract the critical vehicle-specific data and transfer it to the replacement module. We then ship the fully programmed, plug-and-play module back to you.
Is this a guaranteed fix for my car’s problems?
This service fixes issues caused by a faulty BCM. While the symptoms listed are very common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before purchasing.
Do I need to send my VIN number?
No. Because we are cloning the data directly from your original module, all necessary information, including the VIN, is transferred automatically. This ensures a perfect electronic match.
How long does the process take?
We typically program and ship the replacement module within 1-2 business days of receiving your original BCM. Return shipping time will depend on your location and the shipping service selected.
What if I don’t have my original BCM?
This specific service requires your original BCM for the cloning process. If your original module is lost or destroyed, please contact us to discuss other potential solutions.
Is there a core charge?
No, there is no core charge for this service. You are not required to send your old part back to us after the repair, but we do need it initially for the programming service.