One day I get in my tahoe and without warning the driver rear window won't roll up or down its dead. Drivers door switch won't work and rear door switch won't work, but all the other windows work fine I can't believe it would be the motor the truck is almost brand new.I really don't want to take it to the dealer if its something simple I just don't even know where to start to trouble shoot it... PLEASE HELP! Email me at [email protected]