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:
Drive Belt Auto-Tensioner Pulley Replacement
Remove the auto-tensioner.
Remove the tensioner pulley.
Install the tensioner pulley in the reverse order of removal.
Install the auto-tensioner.
...
USB Flash Drive
...
Audio Antenna
Your vehicle is equipped with an antenna at the rear of the roof . Bef ore
using a ‘‘drive-through’’ car wash, remove the antenna by unscrewing it by hand.
This prevents the antenna f ...