Depending on the length of time the power was interrupted, your system may require GPS initialization.

If initialization is not necessary, the system proceeds directly to the Startup Confirmation screen.
If the system fails to locate a sufficient number of satellites to locate your position within 10 minutes, the following screen is displayed.

If you are experiencing GPS reception problems:
Rear Door Rear Sash Trim Replacement
NOTE: Take care not to scratch the door or related parts.
Remove the door quarter inner trim.
Remove the screw securing the trim to the door quarter.
...
Remote Transmitter
On Sport model
LOCK - Press this button once to lock all doors and the tailgate. Some
exterior lights will flash once. When you push LOCK twice within 5 seconds, the
horn will sound to verify t ...
If the Low Tire Pressure Indicator Comes On
U.S. models
■ Reasons for the indicator to come on
A tire pressure is significantly low. If the compact spare tire* is installed,
the indicator stays on for a while, and then goes off.
& ...