1. Introduction
The VJOYCAR M41 Plus HUD Mirror is an advanced Head-Up Display designed to project essential driving data directly onto a transparent mirror, enhancing driver safety and convenience. This device connects via your vehicle's OBD2 port and displays information such as speed, RPM, water temperature, and voltage, allowing you to keep your eyes on the road. Its large, clear display with a white and blue design ensures readability in various lighting conditions, day or night.
2. Package Contents
Please check the box for the following items:
- 1 x VJOYCAR M41 Plus HUD Mirror Unit
- 1 x OBD Cable (1.8m)
- 1 x User Manual
- 1 x Fixing Tool (Crowbar)
- 2 x Velcros for cable management
- 1 x Tape
3. Product Overview and Features
The M41 Plus HUD Mirror offers a range of features designed for an optimal driving experience:
- Large Screen: 160mm widescreen display for clear visibility.
- HD Display: Transparent display board with no double image, eliminating the need for reflection film.
- Multi-function Display: Choose from 6 different display interfaces including Speed, RPM, Water Temperature, Voltage, and Clock.
- Auto Light Sensor: Automatically adjusts display brightness based on ambient light for optimal visibility day and night.
- Modern Design: Features a gradient color speed bar and a classic blue and white display for comfortable viewing.
- Plug and Play: Easy installation via the OBD2 interface.
- Auto Power On/Off: The HUD unit powers on and off automatically with your vehicle's engine.
- Speed Unit Switch: Easily switch between KM/H and MPH.
- Multiple Alarms: Includes alarms for over-speed, low voltage, high water temperature, engine faulty, and fatigue driving.
4. Setup and Installation
The VJOYCAR M41 Plus HUD Mirror is designed for simple plug-and-play installation:
- Connect OBD Cable: Locate your car's OBD2 interface (usually under the dashboard on the driver's side) and connect one end of the provided OBD cable.
- Hide OBD Cable: Carefully route and hide the OBD cable along the seam crossings of your car's interior to ensure a neat and secure installation. Use the provided velcros or tape if necessary.
- Connect to HUD: Connect the other end of the OBD cable to the HUD unit. Place the HUD unit on your dashboard in a position that provides a clear view of the projected display without obstructing your view of the road.
Once connected, the HUD will power on automatically when you start your car's engine.
5. Operating Instructions
The HUD Mirror is designed for intuitive operation:
5.1 Power On/Off
The HUD unit will automatically power on when your car's engine starts and power off when the engine is turned off. No manual intervention is required for basic power management.
5.2 Switching Display Interfaces
Use the 'Up' and 'Down' buttons on the HUD unit to cycle through different display interfaces. The default display typically shows speed. Available interfaces include:
- Speed
- Speed + RPM
- Speed + RPM + Clock
- Speed + RPM + Coolant Temperature
- Speed + RPM Value + RPM Bar
- Speed + RPM Bar + Voltage
Video demonstrating switching between different display interfaces.
5.3 Brightness Adjustment
The HUD features an automatic light sensor that adjusts the display brightness according to the ambient environment. This ensures the display is clear in bright sunlight and soft at night, preventing dazzling.
5.4 Speed Unit
The speed unit can be switched between Kilometers per Hour (KM/H) and Miles per Hour (MPH).
5.5 Trip Driving Distance
The single driving distance will be displayed each time the HUD powers off, providing a summary of your last trip.
6. Maintenance
To ensure the longevity and optimal performance of your VJOYCAR M41 Plus HUD Mirror:
- Cleaning: Use a soft, dry cloth to gently wipe the display surface and the unit. Avoid using abrasive cleaners or solvents that could damage the screen or casing.
- Storage: If storing the device for an extended period, disconnect it from the OBD2 port and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Ensure the OBD cable is not pinched or excessively bent, as this can damage the internal wiring.
7. Troubleshooting
If you encounter issues with your HUD Mirror, please refer to the following common problems and solutions:
7.1 No Display or Flickering Lines
- Check OBD2 Compatibility: The HUD is designed for normal cars manufactured after 2008 with standard OBD2 protocols. It may not be compatible with vehicles manufactured before 2008, some older oil/electric hybrid cars, diesel-powered cars, pickups, SUVs, ORVs, or mini-buses. If your car falls into these categories, the device might not function correctly.
- Secure Connection: Ensure the OBD cable is securely connected to both the car's OBD2 port and the HUD unit. A loose connection can cause intermittent display or no display at all.
- Vehicle Specific Issues: A few special cars after 2008 may also not be compatible with standard OBD2 protocols. If you suspect a compatibility issue, contact VJOYCAR support with your vehicle's make, model, and year.
7.2 HUD Turns Off During Driving
- Check Power Connection: Verify that the OBD cable is firmly connected.
- Vehicle Power Fluctuation: In some cases, vehicle power fluctuations might cause the device to restart or turn off. Ensure your vehicle's electrical system is stable.
- Internal Battery (if applicable): While primarily powered by OBD2, some devices may have a small internal battery for settings retention. If power issues persist, consult the manual for advanced settings related to power management or contact support.
7.3 Constant Alarm Sound (e.g., at 100 KM/H)
- Over-speed Alarm: This indicates the over-speed alarm is active and set to trigger at that speed. Refer to the user manual for instructions on how to adjust or disable the over-speed alarm setting.
7.4 Time Changes Constantly / Cannot Save Settings
- Power Interruption: Ensure the device maintains a stable power connection. Frequent power loss can reset settings.
- Internal Settings: There might be specific settings within the HUD's menu to save configurations. Consult the manual for detailed instructions on saving settings.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | M41 Plus HUD Mirror |
| Size Name | 173*85*31 mm |
| Wire or Wireless | Wired |
| Application | Normal cars after 2008 with standard OBD2 Protocols |
| OBD Cable Length | 1.8m |
| Car Alarm Functions | Over-speed, Low voltage, High Water Temp., Engine Faulty |
| Light Modification | Adjust by hand and adjust by light sensor |
| Installation Method | OBD2 interface plug and play |
| Usage | Show digital speed on mirror |
| Speed Unit | KMH, MPH |
| Warranty | 2 years |
9. User Tips
- Verify Compatibility: Before purchasing or installing, always confirm your vehicle's compatibility with OBD2 devices, especially if your car is older than 2008 or is a hybrid/diesel model.
- Customize Alarms: Take time to configure the alarm settings (e.g., over-speed, voltage) to your preference to avoid unnecessary alerts during driving.
- Secure Cabling: Properly secure the OBD cable to prevent it from interfering with driving controls or becoming dislodged, which could lead to power interruptions.
- Optimal Placement: Experiment with the placement of the HUD on your dashboard to find the position that offers the clearest view without obstructing your line of sight.
10. Warranty and Support
The VJOYCAR M41 Plus HUD Mirror comes with a 2-year warranty. For technical support, warranty claims, or any questions regarding the product, please contact VJOYCAR Official Store directly. They offer lifelong free technical support and can assist with exchanges or accessories during the warranty period.
