Pioneer AVIC-8200NEX Operating Manual page 83

Appendix
 If you enter or exit a multi-storey parking lot or similar struc-
ture using a spiral ramp.
 If your vehicle is turned on a turntable or similar structure.
 If your vehicle's wheels spin, such as on a gravel road or in
snow.
 If you put on chains, or change your tires for ones with a
different size.

If trees or other obstacles block the GPS signals for a consid-
erable period.
 If you drive very slowly, or in a start-and-stop manner, as in a
traffic congestion.
 If you join the road after driving around a large parking lot.
 When you drive around a traffic circle.
 When starting driving immediately after starting the engine.
83