GPS Mark is not Displayed: Procedure

1. Check the cabin for any object that might interrupt radio reception on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.

   HINT: 

   The GPS uses extremely faint radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal.

   OK

   The GPS mark appears.

NG → See step   2 

OK → NORMAL OPERATION 

1. Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears.

   HINT: 

   The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle. However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction and time. For examples, see the following illustration.

   Fig 1: Identifying GPS Poor Signal Locations

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   The GPS mark is displayed.

NG → See step   3 

OK → SYSTEM RETURNS TO NORMAL 

1. Enter the "GPS Information" screen. Refer to Check GPS & Vehicle Sensors in Operation Check . Refer to OPERATION CHECK .
   Fig 2: Identifying Screen Display GPS Information

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check how many of the following codes appear in the "STS" column.

   OK

   At least 3 codes appear.

NG → See step   4 

OK → See step   5