Hello I have 2007 Chevy Tahoe LS and it was working fine until the other morning I tried to use the remote to unlock it and the remote didn't work. I used the key to open it and heard a clicking sound that sounded like it was coming from the power lock and window controls but the vehicle wouldn't start in fact there was no power what so ever. It looked as if all the gauge needles were jumping but only a little. Tried it again today and I didn't even hear the clicking sounds, tried to get a jump from jumper cables thinking it was a battery issue and still no power. What could the problem be? Thought about checking the fuses but haven't done so yet.

 

Welcome to the forum...
A remote start will not work if there are any current check engine codes.
if its not starting with even the key and a jump start , you need to check your battery cables, both positive and negative for corrosion, also check the mega fuse on the firewall near the battery...