G4S Digital GPS Speedometer, New HUD Car Head Up Display with Digital Speed in MPH KPH, Universal Fatigue Driving Reminder, Overspeed Alarm Trip Meter, for All Vehicle (Green)

G4S GPS Speed Meter Troubleshooting

1. No display on the screen, no power

Check whether USB line is damaged, replace USB line test, and prohibit using voltage higher than 5V

2.No speed

The satellite icon flashes indicating the star search state. Please move the car to the open road and wait until the satellite icon stops flashing

3.The speed is not allowed

Check unit correct, km KM / mile MPH, (speed unit switch reference settings)

When the car leaves the factory, the manufacturer increases the speed displayed on the dashboard by 5-7%, and the international standard is subject to satellite data

The steps to switch between KM/H and MPH are as follows: After the GPS speedometer is turned on and displayed normally, press and hold the wheel button vertically for 3 seconds to enter item 1 (1-7), then toggle the wheel button to the left or right to switch to item 5, then press the wheel button vertically to enter the speed unit adjustment, toggle the wheel button to the left or right to switch to the speed unit you want (0 for and 1 for miles), and finally press and hold the wheel button vertically for 3 seconds to save and exit.

4. Driving direction is wrong

The satellite can't tell your direction when there have no speed, and the speed exceeds 5KM / H

5. The speed is still displayed after the car is stopped

Underground parking lot, tunnel, overpass, with shielding will make the signal unstable satellite drift, please drive the car to the open road

6.Turn off the buzzer

The wheel dials left for 2 seconds to turn off the buzzer and dial left again to open the buzzer