2007 chevy suburban-remote will not unlock doors. key sets off alarm. key turns ignition,but sets off alarm.engine wont crank

your ccm cassis control module is malfunctioning. Pull the battery out of the suburban and take it to your favorite autoparts store for testing and/or charging. Low electrical system voltage can cause all sorts of strange issues with the computer. if this does not help you are either going to have to call a qualified locksmith with the proper key programing tools or have the truck towed to the dealer to have the system reprogramed. If this doesn't help you will probably need the computer replaced. If charging or replacing the 'bubrs battery doesn't help I would bite the bullet and have it towed to the dealer.

I am having the same issue. Battery is charging at local auto parts store and then they are testing it. It's a 2007 Suburban. Did anyone ever find out what the issue was and what fixed it?

My suburban 07 has similar issue. All door are locked with master switch (Driver side) but two rear doors do not unlock Is there any optional setting

main bus fuse has malfuction between 3-5 terminals. so you need to replace main bus fuse for the remore unit

Thanks. Can you tell the location of this main bus fuse.