New store opening!Big discount!All items start at half price!OBD system applies to some models. OBD+GPS dual system applies to all cars. Please Note:The OBD system is suitable for most cars after 2007.The OBD2 system is not applicable to the following models:1. American models: Dodge, JEEP, IMSEOER, Chrysler full range of models.2. Vehicles manufactured in the United States prior to 2004.3. German cars before 2004.4. French and Italian cars are not available: Fiat, Maserati, Lamborghini, DS, Peugeot, Citroen, Renault, Simca, etc.5. Some Japanese cars are unavailable: Suzuki, Mazda 6, Infiniti (QX50, Q50, Q501), 2013 Toyota AVANZA, Lexus (is250, ex250, ES300H), Honda (Jazz, CRV) and cars produced before 2008.6. Some models of Kia and Hyundai in Korea (2013 Hyundai Sonata, 2017 Kia Soul PS, etc.)7. Hybrid and diesel vehicles, pickup trucks, RVs, modified on-board computers, Volvo, Switzerland, Chrysler Group, Fiat Group all brand models.The above models cannot use the OBD2 system, it is recommended to purchase the OBD+GPS dual system.If you are not sure if your car is suitable for OBD system, please contact customer service and we will tell you the answer!A: mode select GPS and OBD B: Set the pulsator C: data line interface 1.Multifunction display 2.Unit: RPM Speed Trip Mileage L/H Instantaneous Fuel Consumption V Voltage ASL Altitude L/100 Instant Fuel Consumption 100km 3.direction of travel; water temperature icon 4.Speed in KM kilometers, MPH miles 5.Rotating speed 6.Fatigue driving icon; trouble code icon; satellite iconBrightness automatically adjusts clear and distinctOBD Troubleshooting1.The screen without any display, and no power Check if the OBD cable line is tight; please pull down the OBD cables more times to ensure; check if HUD power switch turns on. If still no display, please change another car to test, analyze whether the car OBD diagnostic interface is good, if it is not good, please repair it and try again.2.When HUD power on, HUD only shows the car voltage and be automatic power off after 30 seconds driving. OBD2 system just available for cars with OBD2 agreement and EU-OBD agreement (European region: after 03 years, Other region: after 07 years) OBD2 system donnot support JOBD and OBDI and recommended to switch to GPS system.3.Inaccurate Speeda. First check the speed unit is correct or not, the speed unit including KM/H and MPH, set it at the correct one(refer to menu 9) b. When HUD is power on, vertical press the setting button for 5 seconds to enter into the menu 0 and the parameter shows 107,up or down the setting button to increase or decrease the value according to the difference until it shows correct one. After adjustment, vertical press in 5 seconds to save it.4. HUD cannot automatically turns off (when stop car, RPM and Speed are not 0) Set the menu 11 value at 13.2V or 13.5V(when the car voltage is less than 13.2V,HUD will turns off in 3 minutes later)GPS Troubleshooting 1.HUD screen without any display,and no power Check whether the cable is tight or not, pull it off and insert it several times repeatedly. when using OBD cable, the starting voltage is set to 13.2v. as long as the voltage reaches 13.2v after starting the car, the cigarette lighter can be started automatically or directly inserted with USB cable.2. No speed After the power is turned on, the GPS will search the satellite. Please drive the car to an open road. Once the satellite numbers more than 5, HUD will work.3. Inaccurate Speed When HUD is power on, vertical press the setting button for 5 seconds to enter into the menu 0 and the parameter shows 107,up or down the setting button to increase or decrease the value according to the difference until it shows correct one. After adjustment, vertical press in 5 seconds to save it.4. After the car is turned off, it will not automatically shut down. The HUD is automatically turned off after 3 minutes when the OBD line is connected.If the HUD not shut down after the car turned off,please set the menu10 value to 13.5V, or plug the USB cable into the cigarette lighter.