Product introduction_x000D_ HUD short for head up display. It displays driving datas on the front windshield such as_x000D_ speed,water temperature,voltage,single mileage etc; to avoid drivers unsafety because of watching the instrument while driving.Drivers can read the driving information instantly , and can always keep the best state on the way with HUD._x000D_ _x000D_ Product function:_x000D_ _x000D_ 1.Multi function: Speed, Water temperature, Voltage_x000D_ 2.Engine icon, Water temperature icon_x000D_ 3.Voltage icon, Fatigue driving icon_x000D_ 4.Light sensor:HUD can automatically adjust the brightness according to the environment_x000D_ 5.Speed unit: MPH- mile, KM/H- kilometer_x000D_ _x000D_ Restore settingTwo ways:_x000D_ Method oneUnplug the power supply,long press 'M' button and hold until all of the LED lights on while Plug the power again._x000D_ Method twoLong press 'M' button to enter into setting mode and adjust the value of 0 to 1 in Menu 12. Long press again to save and exit._x000D_ _x000D_ Fault code clearance:_x000D_ long press '+' button and hold until all of the LED lights on, long press again to exit_x000D_ _x000D_ Turn off/on the buzzer_x000D_ Long press and hold the - button to turn off the buzzer, again to turn on._x000D_ _x000D_ _x000D_ The car are with Automatic start/stop system or Gas-electric hybrid vehicle_x000D_ Long press M button to enter into setting mode and adjust the value of Turn-off Voltage to 1 in Menu 10. Long press again to save and exit._x000D_ _x000D_ Menu setting_x000D_ Please watch the reflective image on the windshield for operation when setting.Long press and hold the 'M' button to enter into setting menus (1-12). The menu is displayed 1,use the '+' button to increase the menu options,short press '+' or '-' button to adjust the parameter value, short press 'M' button to return to the menu, long press 'M' button to save and exit._x000D_ _x000D_ Please note:_x000D_ Please disconnect the HUD if you dont drive for more than a week.Generally speaking car batterys standby time is 1 month,we kindly suggest you to unplug the OBD device when the car is not used for a long time due to different vehicle conditions._x000D_ _x000D_ OBD Troubleshooting:_x000D_ 1.The screen without any display, and no power_x000D_ Please do these operations: If OBD cable is tight enough,pull the OBD cable out several times. Try another car to test. _x000D_ _x000D_ 2.When HUD power on,HUD only shows the car voltage and be automatic power off after 30 seconds driving._x000D_ HUD is only available for cars with OBD2 and EOBD agreement(European:manufactured after 2003, Other region: after 2007)_x000D_ HUD Products dont support JOBD and OBDI,if your car is these agreement(manufactured before 2008),please replace with other cars that comply with OBD2 interface._x000D_ _x000D_ 3.Wrong operation lead to crashes _x000D_ A.If your car equip with other OBD devices (parking sensor, TPMS monitor,car window closer,ELM27)_x000D_ B.If your car had been modified(central control navigation,electronic throttle controller,speed cruise,refresh the computer system,One-click start-up,keyless entry,remote startup)will cause a crash,unplug other OBD devices and do the factory settings (more details please refer to the menu table), unplug the one-point two-wire and use the HUD alone or replace with other cars._x000D_ _x000D_ 4. Inaccurate speed_x000D_ In the case of power-on,long press the 'M' button in to enter into menu option,menu displays 1,parameter displays 107.Fine tuning of the values according to the difference between HUD and car instrument(Example:the instrument displays 100 KM but HUD displays 105KM,then calculation should be default value 107-5=102.Long press the 'M' button to save your adjustment and exit._x000D_ _x000D_ 5. The cars are with Automatic start/stop system and Hybrid electric vehicle _x000D_ After the car starts and stops automatically, the engine stops running. The HUD shuts down after 20 seconds. The turn off voltage can be adjusted to 1V in Menu 10._x000D_ _x000D_ 6.HUD can not auto power off(RPM or Speed not at 0)_x000D_ When HUD is power on,long press the button in to enter into menu,set the voltage from 0 to 13.2V or 13.5V(Menu 10).HUD will turn off after 3 minutes._x000D_ _x000D_ 7.HUD will automatically restart _x000D_ Indicates that the car voltage is higher than the starting voltage 13.2 volts,what you should do is to set voltage to 13.6-13.8V(Menu).HUD will automatically on when voltage is higher than 13.2v.