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

   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 the vehicle. However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction, and time. For examples, see the illustration below.

   Fig 1: Reasons For Poor Reception

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   GPS mark is displayed.

NG → See step   3 

OK → SYSTEM RETURN TO NORMAL 

Fig 2: Screen Display - GPS Information

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Enter the "Navigation Check" mode and select "GPS Information". Refer to OPERATION CHECK .
2. Check how many of the following codes appear in the "STS" column.

   for DENSO Made

   T, P

   for AISIN AW Made

   08H, 04H

   OK

   At least 3 codes appear.

NG → See step   5 

OK → See step   4