Q: Installing a new BCM, 2009 Pontiac G8

asked by on

I'm having trouble with my Body Control Module I think - BCM. My Tire Pressure Monitoring System – TPMS and Brake Pedal Position Sensor - BPPS started giving me problems about 6 years ago and so were my brake lights that were staying on all the time. I had the recall fix done for the brake lights. The recall expired for my BPPS. So I purchased a new OEM ACDelco and they tested and installed the sensor. The BPPS did not take.

The dealership did a diagnosis that proved I need a new BCM. So I bought a new one – not a refurbished one, because I'm frugal. I would like to install it myself and drive to the dealer to have it flashed. I am wondering though if the car will start after installing the new BCM. I heard a new BCM will learn the first ignition key it sees. Is this true? Will there be other conditions? If it doesn’t start I will have to have it towed to the dealer 17 miles away. What do you think? Do you know anything about this? Thanks.

According to the factory repair information, a replacement BCM must be programmed using OEM equipment. It states the vehicle will not start and many other functions will not operate properly until programming has taken place. My advice is to have the BCM replaced by a professional with the correct equipment. This type of problem is best handled by the dealer.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Installing a new BCM, 2009 Pontiac G8

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Guage, fuel and thermostat needles moving very fast

You may have a connection that is getting corroded and is causing intermittent connection problems. If the problem happens again then have the connection to the dashboard cluster disconnected and then add dielectric lube to connection and pins. At the...

Q: What does it mean when your charging system failure light comes on out of no where while driving?

Claimed by Tim J. Wolf

Q: Car seats won't move; is it due to fuses or relay?

Hello. If the seat functions stopped all of a sudden then you either have a blown fuse or a bad circuit breaker. Both are common issues, especially if something is failing in the seat. I would usually check the fuses...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.