VJOYCAR HUD Head Up Display 5.5" Car Overspeed Warning OBDII EUOBD Auto Windshield Projector Alarm System

1. Introduction

The VJOYCAR HUD Head Up Display projects essential driving data directly onto your car's front windshield. This innovative device helps drivers maintain focus on the road by eliminating the need to look down at the dashboard, thereby enhancing driving safety. It offers a variety of customizable operating interface modes and colors, adding a modern and technological touch to your driving experience.

This manual provides detailed instructions for setting up, operating, and maintaining your VJOYCAR HUD, along with troubleshooting tips and product specifications.

VJOYCAR HUD Head Up Display in action, projecting data onto the windshield.

2. Key Features

• 5.5" Large Screen: Provides a clear and easily readable display on the windshield.
• OBDII/EUOBD Compatibility: Automatic adaptation for plug-and-play use with compatible vehicles.
• Comprehensive Data Display: Shows vehicle speed, RPM, water temperature, voltage, fuel consumption, single mileage, total cumulative mileage, travel time, system time, intake pressure, acceleration test, and brake test.
• Multiple Alarm Functions: Includes overspeed alarm, high water temperature alarm, low voltage alarm, shift reminder, engine fault alarm, and fatigue driving reminder.
• Unit Switching: Freely switch between KM/H and MPH for speed, PSI and KPA for turbine pressure, and KM/L and L/100km for fuel consumption.
• Automatic/Manual Brightness Adjustment: Flexible brightness control to prevent dazzling in various lighting conditions.
• Automatic Power On/Off: Automatically powers on with the vehicle and shuts down when the engine is off, protecting the car battery.
• Modern Design: Features a classic blue and white display with red alarm icons for clear alerts.

Detailed view of the HUD display interface with labeled indicators.

3. Package Contents

Please check the package to ensure all items are present:

• 1 x VJOYCAR HUD Head Up Display Unit
• 1 x 16-pin OBD Cable
• 1 x Reflective Film
• 1 x Anti-slip Mat
• 1 x User Manual
• 1 x Bracket (Optional, depending on package choice)

Package contents for both normal and bracket options.

4. Setup Instructions

1. Placement: Place the anti-slip mat on your dashboard in a position that allows for clear projection onto the windshield without obstructing your view.
2. HUD Unit Placement: Place the HUD unit on the anti-slip mat. If you have the optional bracket, secure the HUD unit within the bracket and then place it on the dashboard.
3. Connect OBD Cable: Locate your vehicle's OBDII port (usually under the dashboard near the steering wheel). Connect one end of the provided 16-pin OBD cable to the HUD unit and the other end to your car's OBDII port.
4. Apply Reflective Film (Optional): For optimal clarity, especially in bright conditions, apply the reflective film to the windshield directly above where the HUD unit is placed. Clean the windshield surface thoroughly before application.
5. Power On: Start your vehicle's engine. The HUD unit should power on automatically and begin searching for the vehicle's protocol. Once connected, it will display driving data.

Connecting the HUD unit via USB cable (part of the OBD connection).

5. Operating Instructions

5.1. Basic Operation

• Power On/Off: The HUD automatically powers on when the car starts and powers off when the car is turned off.
• Menu Button: The HUD unit features a menu button (often a scroll wheel or multi-directional button) for navigation and settings adjustment.
• Navigation:
  • Push left/right: To switch between different display interfaces or adjust values.
  • Push inward (short press): To confirm a selection.
  • Long press inward: To enter or exit the settings menu.

5.2. Display Modes and Customization

The HUD offers various display interfaces. You can cycle through them using the menu button to find your preferred layout. Data displayed includes:

• Speed (KM/H or MPH)
• Engine RPM
• Water Temperature
• Voltage
• Fuel Consumption
• Single Mileage
• Travel Time
• System Time
• Intake Pressure

Choose your favorite display interface from various options.

5.3. Unit Switching

You can switch between different measurement units:

• Speed Unit: KM/H or MPH.
• Turbine Pressure: PSI or KPA.
• Fuel Consumption: KM/L or L/100km.
• Temperature: °C or °F.

5.4. Brightness Adjustment

The HUD features an automatic brightness adjustment mode that adapts to ambient light conditions. You can also manually adjust the brightness through the settings menu to suit your preference.

HUD display visibility during daytime driving.

HUD display visibility during nighttime driving.

6. Alarm Functions

The VJOYCAR HUD provides several alarm functions to alert you to potential issues or driving conditions:

• Overspeed Alarm: Alerts you when your vehicle exceeds a preset speed limit.
• High Water Temperature Alarm: Warns you if the engine coolant temperature becomes too high.
• Low Voltage Alarm: Notifies you of low vehicle battery voltage.
• Shift Reminder: Provides a reminder to shift gears, optimizing fuel efficiency and engine performance. This is a unique feature for this model.
• Engine Fault Alarm: Indicates when an engine fault code is detected.
• Fatigue Driving Reminder: Prompts you to take a break after a prolonged period of driving.

When an alarm is triggered, the corresponding icon on the display will flash, and an audible alert may sound (if enabled).

Visual representation of the 12 main functions and 6 main alarms.

7. User Tips

• Optimal Placement: Experiment with the placement of the HUD unit and reflective film on your windshield to find the position that offers the clearest view without obstructing your line of sight.
• Brightness Settings: While the automatic brightness works well, you can fine-tune it manually in the settings menu for personal comfort, especially during dawn or dusk.
• Shift Reminder Customization: The default maximum gear for the shift reminder is 5. If your car has more gears, you can adjust this setting in menu No.16 to match your vehicle's actual gear configuration for more accurate reminders.
• Unit Consistency: Ensure that the speed and other units displayed on the HUD match your vehicle's speedometer and your preferred measurement system (e.g., KM/H vs. MPH).

8. Troubleshooting

• No Display/Power:
  • Check if the OBD cable is securely connected to both the HUD unit and the vehicle's OBDII port.
  • Ensure the vehicle's engine is running.
  • Verify that your vehicle is OBDII/EUOBD compliant (most cars after 2004 are).
• Inaccurate Speed/RPM:
  • Access the settings menu to calibrate the speed or RPM values if they do not match your vehicle's dashboard. Refer to the user manual for specific calibration steps.
• Engine Fault Alarm:
  • If an engine fault alarm appears, the HUD can display the fault code. Consult your vehicle's manual or a mechanic for the meaning of the code. The HUD also has a function to clear fault codes.
• Double Image/Ghosting:
  • Ensure the reflective film is properly applied to the windshield. If not using the film, some windshields may naturally cause a double image due to their construction.
• HUD Not Compatible with Vehicle:
  • The HUD's OBD2 working mode may not be compatible with certain vehicles, including almost 98% of cars before 2004, some old oil and electricity mixing cars, diesel-powered cars, pickups, SUVs, ORVs, and mini-buses. If you are unsure about compatibility, please contact VJOYCAR customer support.

9. Specifications

10. Vehicle Compatibility

The VJOYCAR HUD is designed for vehicles with an OBDII or EUOBD compliant system. This generally includes most cars manufactured after 2004.

However, the OBD2 working mode may not be compatible with the following types of vehicles:

• Almost 98% of cars manufactured before or in the year 2004.
• Some old oil and electricity mixing vehicles.
• Diesel-powered cars.
• Pickups.
• SUVs.
• ORVs (Off-Road Vehicles).
• Mini Buses.
• A few other special car models.

If you are unsure about your vehicle's compatibility, it is recommended to contact VJOYCAR customer support for assistance before purchase.

11. Warranty and Support

VJOYCAR offers a 12-month quality warranty for this product. During this period, if you encounter any issues, you may be eligible to exchange for a new unit or receive replacement accessories.

For any technical support, questions, or concerns regarding the product, please contact VJOYCAR customer service. They provide lifelong free technical support to ensure your satisfaction.