Restore Your Impala’s Electrical System and Drive with Confidence
Are you tired of dealing with the bizarre and frustrating electrical gremlins in your 2006-2013 Chevrolet Impala? One minute the power windows work, the next they don’t. The security light flashes for no reason, or worse, the car refuses to start. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can wreak havoc on everything from your lights and locks to your anti-theft system.
As a technician with over two decades of experience, I’ve seen how a bad BCM can make a perfectly good car feel unreliable. That’s why we offer a straightforward, dependable solution. This BCM, part number 15921353, is a direct-fit replacement for your original unit. The best part? We handle the programming for you. Simply provide your vehicle’s VIN at checkout, and we’ll flash the module with the latest GM software updates specific to your car. It arrives at your door ready to install, saving you a costly trip to the dealership and getting you back on the road faster.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 Impala with a complaint that was driving them crazy: an intermittent no-start condition. The battery was new, the starter checked out, but every few days, the key would turn and nothing would happen. The security light was also blinking erratically. After ruling out the basics, my scan tool pointed towards a communication breakdown with the BCM. These modules often fail due to internal circuit board corrosion or solder joint fractures from years of heat cycles and vibration. We installed one of our pre-programmed BCMs, and the problem was solved instantly. The customer was relieved to have their reliable daily driver back without the guesswork or a massive dealer bill.
Is Your Impala Showing These Telltale Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs attention:
- ✔ Erratic power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on or flashes, preventing the car from starting.
- ✔ Dashboard warning lights illuminate randomly.
- ✔ Headlights or taillights not working correctly, even with good bulbs.
- ✔ Key fob stops working or works intermittently.
- ✔ Horn sounds unexpectedly or doesn’t work at all.
- ✔ Communication errors (U-codes) when scanning the vehicle’s computer systems.
Your Straightforward Installation Guide
Replacing the 2006-2013 Impala Body Control Module is a manageable job for a confident DIYer. The BCM is typically located on the left (driver’s) side of the dash. Follow these general steps for a successful installation:
- Safety First: Always disconnect the negative terminal from your car’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most Impalas, you’ll need to remove the lower dash panel beneath the steering column to access the module. It’s a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have locking tabs that need to be depressed. Once disconnected, 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 plug in all the wiring harnesses. You should hear a click as they lock into place.
- Reconnect Power: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, two procedures are often required. First, perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible scan tool to ensure the airbag system communicates correctly and turns off the warning light. Second, some vehicles may need a Brake Pedal Position Sensor recalibration. If you are not equipped to perform these steps, a professional technician can complete them for you.
Verified Fitment Across GM Models
This BCM is a direct replacement for part number 15921353 and interchanges with a wide range of other GM part numbers. It is compatible with the following vehicles, but always verify your part number before ordering:
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
This module replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM is a computer that manages the non-engine related electronic systems in your car. Think of it as the brain for body functions like your power windows, locks, security system, interior and exterior lights, horn, and wipers.
Why do you need my VIN to program the BCM?
Your Vehicle Identification Number (VIN) allows us to flash the BCM with the precise software and settings for your car’s specific options and features. This ensures all functions work correctly right out of the box and makes the installation process much smoother.
Will this fix the ‘Service Theft Deterrent System’ message?
In many cases, yes. A faulty BCM is a very common cause of issues with the GM Pass-Key or Passlock anti-theft systems. Replacing it with a correctly programmed unit often resolves these security-related starting problems.
Do I need any special tools for the installation?
Basic hand tools like a socket set and screwdrivers are usually all that’s needed for the physical removal and installation. However, as noted in the guide, a professional-grade scan tool is required for the post-installation airbag system setup and potential brake sensor recalibration to ensure full system functionality and safety.