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:
A/T System Description - Lock-Up System (A/T)
Lock-up SystemThe lock-up mechanism of the torque converter
clutch operates in all five gears in D, in 3rd gear in D3, and 3rd and 4th
gears in S with the automatic shift mode. The pressurize ...
Center Vent
NOTE: Take care not to scratch the dashboard or its related parts.
Remove these items:
Audio unit, without navigation system
('9-11 models)
Audio unit, with ...
Steering Rack Guide Removal/Installation
NOTE: During removal/installation, do not allow dust, dirt, or other foreign
materials to enter the steering gearbox.
Remove the steering gearbox.
Loosen the locknut (A), then ...