Restore Your Vehicle’s Brain and Banish Electrical Gremlins
Are you chasing down bizarre electrical issues in your GM vehicle? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting? As a technician with over two decades of experience, I’ve seen these exact frustrations countless times. The culprit is almost always a failing Body Control Module (BCM), the central computer responsible for managing your vehicle’s comfort and convenience features. When it fails, it can feel like your car is haunted. This isn’t just an annoyance; it can be a major disruption to your daily life.
We offer a straightforward, reliable solution. This Body Control Module, compatible with part numbers 22820314 and 22915542, is the definitive fix for these widespread problems. The best part? We handle the most complicated step for you. Before we ship the module, our experts will program it with the latest GM software updates, specifically matched to your vehicle’s unique VIN. This means you get a part that’s truly ready for installation, saving you from an expensive trip to the dealership for programming.
Case Study: A Tricky Diagnosis
I remember a 2015 Chevy Traverse that came into my shop with a laundry list of complaints: the radio would turn off randomly, the liftgate wouldn’t open, and the “Service StabiliTrak” light was on. The owner had already replaced the battery and checked fuses, but the problems persisted. A quick scan revealed a slew of U-codes (communication errors), all pointing to a network issue. Instead of just throwing parts at it, we isolated the BCM on the CAN bus network and saw the data stream drop out intermittently. The BCM was failing internally, causing communication chaos. A new Programmed GM BCM, matched to the VIN, solved every single issue in one go. The customer was thrilled to have their vehicle back to normal without a massive dealer bill.
Is Your Vehicle Experiencing These BCM Failure Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or interior/exterior lights.
- ✔ The security or anti-theft system prevents the vehicle from starting.
- ✔ Dashboard warning lights for ABS, Airbag, or StabiliTrak are illuminated.
- ✔ Horns, alarms, or lights activate unexpectedly.
- ✔ Diagnostic scanner shows communication fault codes, such as U0140, U0155, or other U-codes.
- ✔ Wipers or climate control functions work intermittently or not at all.
Your Straightforward BCM Installation Guide
Replacing your BCM is a manageable job for a confident DIYer. Our pre-programming service eliminates the most difficult step, making this a plug-and-play repair. Follow these general steps for a successful installation:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most compatible models (like the Traverse, Acadia, or Impala), the BCM is located under the driver’s side of the dashboard, to the left of the steering column. On Express and Savana vans, it’s typically behind the center dash panel.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed to be released. Once unplugged, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, wipers, windows, locks, and radio—to ensure everything is working correctly.
Important Post-Installation Procedures
With a Programmed GM BCM, most functions will work immediately. However, due to the complex nature of modern vehicle systems, a couple of additional steps, known as ‘relearns’, may be required in some cases:
- ✔ Airbag System Sync: If your airbag warning light is on 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: On some models, a brake pedal position sensor relearn may be necessary to ensure the brake lights and traction control system function correctly.
Disclaimer: Always consult your vehicle’s factory service manual or a qualified technician for procedures specific to your make and model.
Verified Fitment For These GM Models
This module is a direct-fit replacement for the following vehicles. Please verify your model and options to ensure compatibility.
CAPTIVA SPORT: 2013-2015 (center dash)
CTS: 2014 SW (LH dash) | 2014-2015 Coupe (LH dash) | 2014 Sedan VIN D (V-Series) (LH dash)
ENCLAVE: 2013-2017 (LH dash)
EXPRESS 1500 VAN: 2013-2014 (center dash)
EXPRESS 2500 VAN: 2013-2018 (center dash)
EXPRESS 3500 VAN: 2013-2018 (center dash)
IMPALA: 2013 (ID 22820314 or 22915542) (LH dash) | 2014-2016 VIN W (Limited) (LH dash)
SAVANA 1500 VAN: 2013-2014 (center dash)
SAVANA 2500 VAN: 2013-2018 (center dash)
SAVANA 3500 VAN: 2013-2018 (center dash)
TRAVERSE: 2013-2017 (LH dash)
Frequently Asked Questions
Frequently Asked Questions
Why do I need to provide my VIN?
Your VIN is essential. We use it to load the exact, correct software and calibrations for your vehicle’s specific options. This ensures the module communicates properly with other computers in your car and makes the installation process as simple as possible.
Is this a difficult part to replace myself?
For someone comfortable with basic hand tools and working under a dashboard, this is a very manageable DIY repair. Since we pre-program the module, you avoid the need for specialized dealer computers, which is the hardest part of the job.
What happens if my airbag light is on after I install it?
This is not uncommon. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag control module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No. There is absolutely no core charge for this part. You can keep your original module.
Will this fix a “Service StabiliTrak” message?
A failing BCM is a common cause of this message. Replacing the BCM often resolves the issue, but some vehicles may also require a ‘Brake Pedal Position Relearn’ procedure after installation to clear the light and ensure the system functions correctly.