Skip the auto shop - Our mechanics make house calls

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.

A: According to the factory repair information...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: Rear windshield wiper broken

For your 2005 Kia Spectra5, if you can hear the motor run without proper wiper operation, then you know a couple things. The switch is working, and the fuse and wiring are okay, too. The problem must be in the...

Q: Code 102 Mass Airflow Low Volts - 1998 Pontiac Grand Prix

Hi. If you unplug the mass air flow sensor and the car stalls that usually means the sensor is operating like it should. This does not mean that the mass air flow sensor is working 100% properly specially since there...

Q: brake light issues

Thanks for writing in about your 2006 Mitsubishi Galant. It is possible that there is a short in your electrical system or possibly a bad ground. I suggest having a certified technician, like one from YourMechanic, perform electrical testing to...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.