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:
Parking Brake Lever Replacement
Release the parking brake lever fully.
Remove the center console.
Disconnect the parking brake switch connector (A) from the parking brake
switch (B).
...
Brightness Control
When the parking lights are turned on and the
ignition switch is in ON , you can
use the
(select/reset) knob to adjust
instrument
panel brightness.
Brighten: Turn the knob to the right.
...
Gauge Control Module Replacement
NOTE: Before replacing the gauge control module,
retrieve the ODO value and the maintenance minder information from
the gauge control module with the HDS.
Remove the instrument panel.
...