Pontiac Grand Am 1999 BCM Replacement

Can you tell me how hard it will be to change out the BCM in my 99 Pontiac Grand Am? I’ve heard that it’s not really that complicated and takes about 45 minutes to complete…

The BCM is under the right side of the instrument panel, next to the fan motor. It just plugs out and the new one plugs in. BUT, the BCM must be reset after installing it. Sometimes you will have to get a mechanic to reprogram the BCM to make it work correctly. But since your Grand Am is somewhat older, you might be able to reset it using the following procedure: Turn the ignition switch to the ON position (NOT the CRANK position).

Turn the ignition switch to the CRANK position, then release to the ON position (Do NOT start the vehicle). Observe the security telltale for approximately 10 minutes . After the ignition switch has been in the ON position for approximately 10 minutes , the security telltale will transition from ON, then to OFF. Hopefully this will reset it for you. And for those with late model Pontiacs, you have to get the BCM reprogrammed to make it work, they are MUCH more complex than the older ones.