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:
Anti-lock Brakes (ABS)
The anti-lock brake system (ABS) helps prevent the wheels from locking up, and
helps you retain steering control by pumping the brakes rapidly, much faster than
a person can do it.
The electronic ...
Park Pin Switch Replacement (A/T)
NOTE: The park pin switch is installed in the shift lever bracket base, and
not available separately from the shift lever bracket base; replace the park pin
switch and the shift lever bracket base ...
Cylinder Head Inspection for Warpage
Remove the cylinder head.
Inspect the camshaft.
Check the cylinder head for warpage. Measure along the edges, and three
ways across the center:
If wa ...