Is Your GM Vehicle Plagued by Bizarre Electrical Problems?
If your Buick LaCrosse, Chevy Malibu, or Cadillac SRX is experiencing a host of strange and unpredictable electrical issues, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, managing everything from your power windows and door locks to the interior lights and security system. When it begins to fail, it can create a cascade of frustrating problems that can be difficult to diagnose.
From the Diagnostic Bay
We recently had a 2015 Chevy Malibu come into the shop with a complaint that was all over the place. The customer reported intermittent no-start conditions, flickering dashboard lights, and a key fob that only worked occasionally. They had already replaced the battery and checked the alternator. After running network diagnostics, we found multiple communication error codes all pointing back to a single source: the BCM. Instead of a costly and time-consuming replacement and programming session at the dealership, we used a cloned LaCrosse Body Control Module from a donor vehicle. By transferring the original data, the car was back on the road the same day with all issues resolved. It’s a perfect example of how a single failing module can mimic a dozen different problems.
Common Symptoms of a Failing BCM
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system engaging randomly, preventing the car from starting.
- ✔ Keyless entry and remote start functions failing intermittently.
- ✔ False warnings appearing on the instrument cluster (e.g., ‘Door Ajar’).
- ✔ Unexplained battery drain when the vehicle is turned off.
- ✔ Complete loss of communication with other vehicle modules, leading to a no-start condition.
The Simple, Plug-and-Play Solution
Forget expensive dealership visits and the hassle of programming a new module from scratch. Our professional cloning service makes this repair straightforward and affordable. Here’s how it works: you purchase this listing and ship your original BCM to us. We will then extract the unique vehicle data—including the VIN, mileage, and key information—and flash it directly onto this replacement unit. The module you receive back will be 100% plug-and-play, ready for immediate installation with no additional programming required.
Post-Installation Procedures
While our programming service ensures the module is ready for your vehicle, certain systems may require a quick recalibration after installation. Please be aware of the following potential procedures:
- 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 BCM with the airbag system. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and to satisfy the traction control system.
Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for Your Vehicle
This LaCrosse Body Control Module is a direct replacement for a wide range of General Motors vehicles. Please verify that your original module’s part number is on this list:
Compatible Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
Fits The Following Models:
- 2014-2016 Buick LaCrosse
- 2014-2016 Chevrolet Malibu (including 2016 Limited)
- 2014-2015 Chevrolet Volt
- 2014-2016 Cadillac ELR
- 2014-2017 Buick Regal
- 2014-2015 Chevrolet Camaro
- 2014-2016 Cadillac SRX
- 2014-2016 Chevrolet Spark (EV model)
Frequently Asked Questions
What is a BCM cloning service?
Our cloning service involves transferring the essential data (like VIN, mileage, and security information) from your original, failing BCM to this fully functional replacement unit. This makes the replacement module plug-and-play, avoiding the need for expensive dealership programming.
Why is this better than just buying a used BCM?
A standard used BCM from a salvage yard will contain the data from the donor car and will not work in your vehicle without being reprogrammed by a dealer. Our service pre-programs the module specifically for your car, so it works right out of the box.
How long does the programming process take?
Once we receive your original module, the cloning process is typically completed and shipped back out within 1-2 business days. We will provide you with return tracking information as soon as it ships.
Will I need to have my keys reprogrammed?
No. Because we transfer all the original security data from your old module, the replacement BCM will recognize your existing keys without any need for reprogramming.
What if the airbag light comes on after installation?
In some cases, the BCM needs to be electronically ‘introduced’ to the airbag module. This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that can be performed by any competent repair shop with a professional-grade diagnostic tool.