Okay I've read through several threads on this , but doesn't seem to be a definitive answer. I drove my car , everything was normal. Came back a couple hours later, pushed the remote nothing. Unlocked driver door with key, alarm went off. Got in the car , attempted to start it, nothing. Engine did not turn over , dash lights up. Removed fuse 9 alarm goes off. Disconnect battery for several minutes, reconnect. Remote still doesn't work . Open door with key, no alarm. Put key in ignition, car starts. Drive home. Light on tow switch blinking red the whole time. Get home, turn off car. Put fuse 9 back in. Remote works as normal. Can lock and unlock car and start car. Obviously the alarm and anti theft system was activated and I couldn't shut it off, so the car wouldn't start. I thought when you open the car door with the key that it turns off the alarm system ? I checked the remote batteries and they're good. Car battery seems good ,12.6v ,as well as ground. Alternator putting out 14.2 v .I'm a little confused where to start trouble shooting. Is this the Skreem, the remote receiver in dome light assembly, or just a fluke?

 

Also, I thought unlocking the door with key would unlock the trunk as well?

 

It should unlock everything at once. You can program it to unlock one or both doors , on the FOB. I don't know if that transfers to the key.

 

The key overrides the fob settings, I am guessing an alarm issue. Maybe it ha shorted out inside. Disconnect alarm and see what happens. Not just removing the alarm fuse.

 

Kinda my thoughts when I saw this too... hit the panic button and see if it sounds like it's on crack... won't "rule it out" if it sounds normal.. but will confirm an issue if it does..

 

This might not apply here, but look for water in the right rear trunk cavity. Good luck!

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Put a new alarm siren in last year. Chirps when locking and unlocking. Just tested panic button, works as expected,