[tfranco41]

I have a 2008 Escalade with no power whatsoever. nothing in the Escalade works not the remote lights nothing. the truck won't even a lock with the remote or with the button inside the truck. the truck won't even turn on nothing works but the AC and the navigation. last night I was sitting in the truck with the stereo on and the key out of the ignition. I open the driver's door to open the passenger door got back into the driver seat and nothing would turn on. no lights come on nothing but the AC and navigatio. I had to get it towed to my house last night please help. I think it has something to do with the anti theft system.

 

[Nice Ride]

Try disconnecting the battery for 10 min, then re-connect. Also, make sure battery is good.

 

[bigksone]

Is it the original battery? I've seen some weird things happen to these trucks with weak batteries. If not, first thing I would do is turn off the AC and the radio, then disconnect the battery. Touch the positive and negative cables together and reinstall the battery.

 

[gloz28]

Be careful though because if your not careful you can fry the electronics/computer/ and all sorts of electrical parts of the truck if your not carefull

 

[03CTS_no4499]

I took the battery out of my 2007 escalade to jump start another car and put the dead battery in the escalade to the same results your describing. Even after the battery was fully recharged nothing in the truck worked. The dealer said i fried the BCM (body control module).

 

[evois]

If you had the stereo ON. Your battery must just be dead. Charge it and restart.

 

[new york city]

Your REAL key is being detected as the spare key that will only unlock the door physically and not turn anything on.
You need to check your key/ignition.
Maybe that is your issue. Not sure.


As for your ac and navigation turning on. I honestly don't know.

Or just a simple dead battery. Lol