Restore Full Electrical Function to Your Chevrolet
Are you battling strange and frustrating electrical issues in your 2000-2004 Chevrolet Impala or Monte Carlo? Flickering lights, malfunctioning power windows, or a security system that prevents your car from starting are common signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of problems. This replacement Body Control Module, part number 10350647, is the definitive solution to restore your vehicle’s performance and reliability.
Unlike a generic part from a salvage yard, this BCM is delivered to you fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest GM factory software updates, ensuring optimal performance and compatibility. This critical programming step means you can avoid a costly trip to the dealership for flashing. It’s a true plug-and-play solution designed to get you back on the road quickly and confidently.
From the Diagnostic Bay
We had a 2003 Impala come in with a classic “haunted car” complaint. The dome lights would randomly turn on, the driver’s side door wouldn’t lock with the remote, and the security light was on, causing an intermittent no-start. The owner had already replaced the door lock actuator and a light switch with no success. After a quick scan, we saw multiple communication codes pointing to the BCM. A faulty BCM was creating network noise, causing these unrelated components to act erratically. Installing a VIN-programmed BCM like this one solved all the issues in one go, saving the customer from further diagnostic headaches and parts-swapping.
Is Your BCM Failing?
A faulty BCM can manifest in numerous ways. Look out for these common symptoms indicating it’s time for a replacement:
- ✔ Erratic power windows, door locks, or mirrors that work intermittently.
- ✔ Interior lights, headlights, or taillights staying on or not turning on at all.
- ✔ The anti-theft or security light is illuminated on the dash, often causing a no-start condition.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ The key fob remote no longer functions correctly.
- ✔ False warning messages appearing on the driver information center.
Understanding Your 2000-2004 Impala BCM Installation
This module is a direct-fit replacement, physically located on the left-hand side of the steering column. Because it arrives programmed to your VIN, the most complex part of the job is already done. However, after installation, some vehicles may require additional calibration procedures to ensure all related systems communicate correctly. These are simple procedures for any professional technician with a capable scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag system. This is a safety-critical step that should not be ignored.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be necessary to ensure proper brake light operation and traction control system function.
Best of all, there is no core charge for this part. You can keep your original module without the hassle of shipping it back.
Compatible Part Numbers:
This module is a direct replacement for the following GM service numbers: 10323612, 10340320, 10350647, 10432318, 10432571, 10438145, and 10445875.
Frequently Asked Questions
What does the Body Control Module do on my Impala?
The BCM is a computer that manages and controls your vehicle’s non-engine related electronic systems. This includes power windows, door locks, the security system, interior and exterior lighting, wipers, and the instrument cluster.
Why does this BCM need my VIN?
The BCM is programmed to a specific vehicle’s options and security system. Programming it to your VIN ensures that it works seamlessly with your car’s existing components and allows the engine to start. A non-programmed module will not work.
Is this part difficult to install?
Physically, the BCM is a plug-and-play part located under the driver’s side dashboard. The main challenge is the potential need for post-install relearn procedures, which may require a professional diagnostic tool. However, our VIN programming saves you the most complex step.
Do I need to return my old BCM?
No, there is no core charge on this item. You can keep your original module.
How do I provide my VIN after purchase?
After you complete your purchase, please send us a message with your vehicle’s 17-digit VIN. We cannot program and ship your BCM without it.