Power door locks

Maybe the fob needs to be resynced to the car. Check online or in the manual for a procedure to relearn it. I came across one procedure that may or may not work for you: Put key in ignition, hold down door lock button. Turn key in ignition from 'on' to 'off' while continuing to hold 'lock' button. Do this two more times. Release door 'lock' button and press and hold the 'lock' button on remote 15 seconds. System should be resynced. This is from G6ownersclub.com. A lot of times when there has been a question like yours regarding multiple actuator failures, it turns out a simple relearn procedure solved the problem.

I'll try this procedure, but the fob and door lock switch works fine. It's the key that will only lock the doors and won't unlock the doors or trunk.

It didn't work. The key will still not unlock anything.

Perhaps the unlock button on the key is bad then.

There's no button on the key only a +.