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.
...
Transmission End Cover Selector Control Shaft Oil Seal Replacement (A/T)
Special Tools Required
Driver Handle, 15 x 135L 07749-0010000
Bearing Driver Attachment, 22 x 24 mm 07746-0010800
Remove the oil seal from the end cover.
Install the new oil ...
Front Door Glass Outer Weatherstrip Replacement
NOTE:
Put on gloves to protect your hands.
Take care not to scratch the door and related parts.
Lower the glass fully.
Remove the door sash outer trim.
...