I can open with the button but the key has stopped working. Any advice?
It is a common issue. Your microswitch has gone. I have not done a replacement but I don't think it is bad,
Check fuse. I had same problem.
Thanks. Do you recall which fuse it is?
Fuse #1 (25 Amp) Rear trunk release/sunroof or soft top.
BTW They are listed in the lid of the fuse box
Thanks again. I had already tried #1 but gave it another shot. Probably the microswitch.