About HUD (Head Up Display):Thanks for purchasing our OBD smart digital meter.This product connects car OBD2 interface by OBD cable, and display the driving datas, e.g.vehicle speed, engine RPM, water temperature, fuel consumption etc. It can keep the drivers eyes always on road to avoid the dangerous of lowering down head to read the dashboard. This product wont change any car ECU datas.OBD smart digital meter is equipped with a very powerful detection for error code, the device can display the error code information clearly in text form,and it can clear the fault information,and display accelerating competitive mode,brake performance test mode, turbo preure, read the entire vehicle data stream information,and the other functions.HUD Main Features:1.Plug and Play connectivity with any OBDII or EUOBD capable vehicle;2. Screen 3.5-inch HD display3.Multi-color design makes the screen clearer and easier to read4.Nano-technology to eliminate double reflections, more clarity5.Rich Contents: speed, RPM, water temperature, voltage, single driving distance, low voltage alarm, high water temperature alarm, over speed alarm, freely switch between kilometers & miles.6. Auto power on/off: HUD power up and power down with vehicle, effective protection of the car battery with manual switch mode7. 5-level brightne adjustment, automatic and manual brightne adjustment modeNote: 1.OBD2 HUD supports cars withOBDII interface OBD2 standard protocol or EUOBD standard protocol(1) For Europe and North America, it can be used for vehicles manufacturedafter2004with OBD2 interface OBD2standard protocol (or EUOBD);other regions can be used forOBD2 interface OBD2 standard protocol (or EUOBD)produced after2008)Car.(2) Automobiles that do not support the OBD I protocol and the JOBD (Japan OBD) agreement. To avoid the mistake and dispute, pls make sure your car has the OBDII interface if your are not sure, pls dont order firstly ,you can take some pictures to me, we will check for you and recommend you suitable Item. Thanks in advance.For Toyota Land Cruiser Reiz Alphard Fortuner 86 Hiace Vellfire