I have a 2006 G6 and the remote starter recently stopped working. The remote will lock and unlock the doors but when I hit the lock and then starter button on the remote the lights will just flash and you could hear a humming noise..

maybe its something to do with door sensors

Usually with remotes you turn the key for the ignition to the off position,then turn the ignition key eight times without starting it, on the 8th time leave the key on the forward position then push any button on your remote that should fix the remote problem.

this has just recently started happening to me too, did you ever find out what was wrong with the car??

have them reprogrammed at the dealer for about 40 bucks total

The fob can get dirty inside reducing it's function. You can clean it inside with electrical contact cleaner. Your dealers parts department can test it, usualy for free. Good Luck

first make sure you have the keyless start entry setup. if u do then you need to lock the door with the transmitter after you lock the door press the start button and hold it down until it starts. It usually takes three or four seconds.

I have a 2003 sierra and my remote starter would not work, it would lock and unlock only, checked out this site found the solution, tried it and in two seconds i solved the problem, Just press the lock button and the start button and viola it works again, thanks for all your help , GGGreat site glad i found it John

i think that this is to prevent you from locking your keys in the car with the engine running.
Some remote starters have a feature that when the car is running (and in park) you can hit the remote start button twice for one second each - then you can take the key out of the ignition and still have the car running.
At this point....if you would hit the 'lock' button on your door the doors would immediately unlock. However, if you get out of the car and close the door leaving it unlocked and then you hit the 'lock' on your original car remote the doors will lock and stay locked. So now the car is running the doors are locked and you have the keys in your hands. Then you can run into the store or house real quick with your car locked.
Once you come back, you hit 'unlock' on the original car remote. the doors will unlock - you can get it - and then before hitting the brake put the key in the ignition and turn it (dont crank it) as if you had when originally using the remote starter.
Maybe this will work for you.....

Don't know for sure it will work with your but try this.

1. Close all the vehicle doors.
2. Insert the ignition key into the ignition lock cylinder.
3. Press and hold the door unlock switch.
4. While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
5. Release the door unlock switch. The doors will lock and unlock to confirm the program mode.
6. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.
7. Repeat the previous step to program up to four transmitters.
8. Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter mode.
9. Operate the transmitter functions in order to verify correct system operation.