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:
Tire and Loading Information Label
The label attached to the driver’s doorjamb provides necessary tire and
loading
information.
The tire and loading information label attached to the
driver’s doorjamb contains:
1 The number ...
Removal
Raise and support the vehicle.
Remove the rear wheel.
Remove the wire guide grommet (A) from both sides of the axle beam.
@font-face ...
Replacement (Part -1)
Remove some of the brake fluid from the master cylinder.
Raise and support the vehicle.
Remove the front wheels.
Remove the brake hose mounting bolt (A).
...