Liiiyuan specializes in automotive electronics, manufacturing aftermarket Head-Up Displays (HUDs), GPS speedometers, and OBD2 gauge systems for vehicle monitoring.
Liiiyuan is a manufacturer of automotive accessories focused on enhancing the driving experience through advanced display technologies. The brand's primary product lineup includes Head-Up Displays (HUDs) and digital speedometers that project vital vehicle data—such as speed, RPM, water temperature, and voltage—directly onto the windshield or a dedicated screen.
These devices utilize both OBDII and GPS systems to ensure compatibility with a wide range of vehicles, from older models to modern cars. Liiiyuan aims to improve driving safety by allowing drivers to keep their eyes on the road while monitoring essential diagnostics.
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If using a GPS mode, the device requires a satellite signal; ensure you are driving on an open road. If the icon flashes, it is still searching for signal. For OBD models, ensure the connection to the car's OBDII port is secure.
Most Liiiyuan units allow for speed fine-tuning in the settings menu. If the displayed speed differs from your dashboard, you can adjust the parameter value (e.g., from 100 to 105) to match.
GPS-mode devices are compatible with all vehicles that have a USB power source. OBD2-mode devices are generally compatible with cars manufactured after 2008 that support standard OBDII protocols.
You can switch speed units in the device settings menu. Refer to your specific model's manual for the exact button navigation to change this setting.