8
Safety Warnings and Precautions
GPS Use
• If you are using the product for the first time or using it after an extended period of nonuse (3
days or longer), it will take longer than usual for the GPS to determine your current location.
• GPS signal strength is susceptible to weather conditions (rain, fog, etc.) and radio wave
interference.
• The ideal ambient temperature range for the GPS receiver is 0°C - 60°C/32°F -140°F.
Maintain this temperature range inside the vehicle, especially during summer and winter
months.
• GPS reception may be low underneath an overpass, inside a tunnel, or with a high density
of buildings nearby.
• The GPS receiver may not function properly in vehicles with special coating or tinting on the
windshield or equipped with electromagnetic wave-generating devices on board.
• GPS reception may be low or unavailable altogether near high-rise buildings or power
cables due to the effects of high voltage.
• With poor GPS reception, it may take longer to determine the current location if the vehicle
is moving.
• Time and speed displays may not function properly in GPS shadow zones and under poor
GPS reception conditions.
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