05 GMC canyon door locks & lh window quit working

SOURCE: door panel removal

You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. If needed, you can pull back the weather seal (can't reuse it, but it's not that important) and you will be able to access everything inside the door

SOURCE: On my 2003 gmc passenger power door nothing works. can

it sounds as if the wiring harness to the door may have come disconnected or broken you have to open the door panel and check the connections manually

SOURCE: Relay System Location - Power Locks/Window

under the hood right in front of battery is a fuse box

SOURCE: Where is GMC Canyon starter located?

the starter is located on the drivers side and is not easy to get out can barely see it from under neath there is fuel lines wire harness and sensor in the way thats on the 2.8l 4 cylinder changed mine when i had the engine out.

SOURCE: 2004 GMC Canyon with 9000

Did you recently install a third party stereo?