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:
Other Features
This section describes the useful functions incorporated into the
navigation system. ...
Disassembly
Raise and support the vehicle.
Remove the rear wheels.
Release the parking brake, and
remove the brake drum.
Remove the tension pins (A) by pushing respe ...
Temporarily Repairing a Flat Tire
Canadian models with automatic transmission
If the tire has a large cut or is otherwise severely damaged, you will need
to have the
vehicle towed. If the tire only has a small puncture, from a nai ...