GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi there I am Cam. Do you mean that your key turns but does not open the door on your vehicle, and the remotes do not work? If this is so, can you tell me what the recent history on your vehicle is? Any recent repairs?
OK, have you used the key to open the door any time recently? I suspect that A your battery is dead, but B, you had doors repaired and likely have not used it since, and the door unlock actuator is not hooked up to the door key. Does this sound plausible?
If this is the case, then it could be difficult to work around. How to get the hood open to boost it is going to be interesting. If you want to try opening the door, get a coat hanger and put a hook on the end with a sharp barb. Get it inside then use the barb to hook into the pull up. Its the hook that bites into the plastic to pull it up.
The other option is to try and gain access to the positive post of the starter through the wheel well to get power to the vehicle enough to open the door electronically.