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:
During Route Guidance
During route guidance, route information is displayed on the map/guidance
screen.
Press the MAP/GUIDE button to display the guidance screen. ...
Daytime Running Lights
The high beam headlights come on slightly dimmer than normal when the
following
conditions have been met:
• The ignition switch is in ON .
• The headlight switch is off, or in .
• The park ...
M/T Differential Backlash Inspection (M/T)
Place the differential assembly on V-blocks (A), and install the right
driveshaft (B) and the left driveshaft (C).
Measure the backlash of both pinion gears (D) with a dial in ...