Toyota TACOMA 2010 Quick Reference Manual page 356

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Circling calibration
Stop the vehicle where it is safe to drive in a circle.
Press the switch until CAL
appears on the display.
At this time, the compass display
is locked in N.
I n f o r ma t i o n P r o v i d e d b y :
3-6. Other interior features
Drive the vehicle at 5
mph (8 km/h) or less in a
circle until the direction is
displayed.
If there is not enough space
to drive in a circle, drive
around the block until the
direction is displayed.
When CAL goes off and the
compass display returns to
the normal mode, calibration
is complete.
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