Toyota Sienna Quiz
Navigation

System normal condition check

In this manual: Navigation
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
11steps
~66min
3/5difficulty
Done 0 of 11

1. CHECK NORMAL CONDITION

  1. If the symptom is applicable to any of the following, it is intended behavior, and not a malfunction.

Symptom

Answer
A longer route than expected is chosen. Depending on the road conditions, the radio and navigation assembly may determine that a longer route is quicker.
Even when distance priority is high, the shortest route is not shown. Some paths may not be advised due to safety concerns.
When the vehicle is put into motion immediately after the engine starts, the navigation system deviates from the actual position. If the vehicle starts before the navigation system activates, the system may not react.
When running on certain types of roads, especially new roads, the vehicle position deviates from the actual position. When the vehicle is driving on new roads not available on the map disc, the system attempts to match it to another nearby road, causing the position mark to deviate.
  1. The following symptoms are not a malfunction, but are caused by errors inherent in the GPS, gyro sensor, speed sensor, and radio and navigation assembly.
    CHECK NORMAL CONDITION
  2. The current position mark may be displayed on a nearby parallel road.
    CHECK NORMAL CONDITION
  3. Immediately after a fork in the road, the current vehicle position mark may be displayed on the wrong road.
    CHECK NORMAL CONDITION
  4. When the vehicle turns right or left at an intersection, the current vehicle position mark may be displayed on a nearby parallel road.
    CHECK NORMAL CONDITION
  5. When the vehicle is carried, such as on a ferry, and the vehicle itself is not running, the current vehicle position mark may be displayed in the position where the vehicle was until a measurement can be performed by GPS.
    CHECK NORMAL CONDITION
  6. When the vehicle runs on a steep hill, the current vehicle position mark may deviate from the correct position.
    CHECK NORMAL CONDITION
  7. When the vehicle makes a continuous turn of 360, 720, 1,080, etc. degrees, the current vehicle position mark may deviate from the correct position.
    CHECK NORMAL CONDITION
  8. When the vehicle moves erratically, such as constant lane changes, the current vehicle position mark may deviate from the correct position.
    CHECK NORMAL CONDITION
  9. When the ignition switch is turned to the ACC or ON position on a turntable before parking, the current vehicle position mark may not point in the correct direction. The same will occur when the vehicle comes out of parking.
    CHECK NORMAL CONDITION
  10. When the vehicle runs on a snowy road or a mountain path with the chains installed or using a spare tire, the current vehicle position mark may deviate from the correct position.
    CHECK NORMAL CONDITION
  11. When a tire is changed, the current vehicle position mark may deviate from the correct position.

HINT:

  • Diameter of the tire may change, causing a speed sensor error.
  • Performing the "tire change" in calibration mode will allow the system to correct the current vehicle position faster.

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.