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VJOYCAR Manuals & User Guides

VJOYCAR manufactures automotive electronics including GPS trackers, OBD2 head-up displays, car alarms, and aftermarket accessories for Tesla vehicles.

Tip: include the full model number printed on your VJOYCAR label for the best match.

About VJOYCAR manuals on Manuals.plus

Established in 1999, VJOYCAR (Shenzhen Vjoy Car Electronics Limited) is a specialized manufacturer and global supplier of automotive electronics and vehicle safety systems. The company offers a diverse portfolio that includes Universal GPS Speedometers, OBDII Head-Up Displays (HUD), 4G/GPS vehicle trackers, and wireless DIY car alarm systems.

In recent years, VJOYCAR has expanded its expertise to the aftermarket electric vehicle sector, producing tailored accessories for Tesla Model 3 and Model Y, such as automatic soft-close door systems, electric door handles, and digital instrument clusters. Committed to quality and innovation, VJOYCAR aims to provide drivers with enhanced safety, convenience, and modern driving experiences through their wide range of electronic solutions.

VJOYCAR manuals

Latest manuals from manuals+ curated for this brand.

VJOYCAR Diffused LED Light User Guide

May 18, 2026
VJOYCAR Diffused LED Light Specifications High-concerned chemical: None Certification: FCC, CE Special Features: Full-width Taillight Item Diameter: 10cm Color: Red Voltage: 12 V Item Weight: 2kg Model Name: Tail Light…

VJOYCAR DIY Wireless Car Alarm System Instructions

March 31, 2023
DIY Wireless Car Alarm System Instructions (Fast assistance: sales@vjoycar.com skype: voicer) Package List (not work for 12V cars) 1* Wireless Siren 1* High-frequency Antenna 1* Wireless Car Adaptor Air Sensor…

VJOYCAR TK20 4G GPS Vehicle Tracker User Guide

December 5, 2021
VJOYCAR TK20 4G GPS Vehicle Tracker User Guide At a Glance Overview Accessories Power cable/ Relay Wiring Diagram Getting Started Installing the SIM card Important: A SIM card is required…

VJOYCAR P15 OBD Smart Digital Meter User Manual

November 7, 2021
OBD smart digital meter User manual Thanks for purchasing our OBD smart digital meter. This product connects the car OBD2 interface by OBD cable, and displays the driving data, e.g.…

VJOYCAR OBD Smart Digital Meter User Manual

July 20, 2021
OBD smart digital meter User manual Model:P15 Thanks for purchasing our OBD smart digital meter. This product connects the car OBD2 interface by OBD  cable, and displays the driving data,…

V70 OBD Car Computer Gauge User Manual

user manual
User manual for the V70 OBD car computer gauge, detailing its production description, specifications, operating settings, software updates, data stream parameters, and service procedures.

VJOYCAR GPS HUD Technical Specifications and User Guide

Technical Specification and User Guide
Detailed technical specifications, usage instructions, and warranty information for the VJOYCAR GPS Head-Up Display (HUD) for cars and trucks. Learn about its features, power requirements, operating conditions, and warranty policy.

VJOYCAR manuals from online retailers

VJOYCAR H500G GPS HUD Speedometer User Manual

H500G • February 13, 2026
Instruction manual for the VJOYCAR H500G GPS HUD Speedometer, providing details on setup, operation, features like speed display, compass, time, over-speed alarm, and fatigue driving alert for various…

VJOYCAR Hawk 3.0 Car Dashboard Computer User Manual

Hawk HUD • November 7, 2025
Comprehensive user manual for the VJOYCAR Hawk 3.0 Car Dashboard Computer, providing instructions for setup, operation, features, and troubleshooting of its OBD2 and GPS functions.

VJOYCAR G20 GPS Speedometer User Manual

G20 • July 27, 2025
Comprehensive user manual for the VJOYCAR G20 GPS Speedometer, covering setup, operation, features, troubleshooting, specifications, and warranty information for this universal HUD digital speed gauge.

Wireless Car Alarm System User Manual

2-Way LCD Pager Remote Control DIY Install System • July 9, 2025
Comprehensive user manual for the VJOYCAR Wireless Car Alarm System, covering DIY installation, operation, maintenance, troubleshooting, and specifications for enhanced vehicle security.

VJOYCAR Wireless Car Alarm System User Manual

New Manual Control*2 • July 9, 2025
Comprehensive user manual for the VJOYCAR Wireless Car Alarm with Remote Control, featuring DIY installation, vibration sensor, and universal 12V compatibility.

VJOYCAR G20 GPS Digital Speedometer HUD User Manual

G20 • June 26, 2025
Comprehensive user manual for the VJOYCAR G20 GPS Digital Speedometer HUD, including setup, operation, maintenance, troubleshooting, and specifications. This head-up display shows real-time driving speed from GPS satellites,…

VJOYCAR Auto Power Frunk 3.0 Instruction Manual

Auto Power Frunk 3.0 • May 24, 2026
Comprehensive instruction manual for the VJOYCAR Auto Power Frunk 3.0, detailing installation, operation, features, and compatibility for Tesla Model Y, 3, X, S, 3 Highland, and New Y…

VJOYCAR 4G SOS GPS Pendant User Manual

V51 • May 23, 2026
Comprehensive user manual for the VJOYCAR 4G SOS GPS Pendant, including setup, operation, features like fall detection, real-time tracking, and troubleshooting.

Vjoycar Dashboard Hidden HUD Cluster Dash Speedometer User Manual

2023 Newest Model 3/Y Dashboard Hidden HUD Cluster Dash Speedometer • April 26, 2026
Comprehensive user manual for the Vjoycar 2023 Newest Model 3/Y Dashboard Hidden HUD Cluster Dash Speedometer, including features, specifications, installation, operation, maintenance, and troubleshooting.

VJOYCAR 8.8-inch Rear Entertainment Display User Manual

8.8-inch Rear Entertainment Display • 1 PDF • April 26, 2026
Comprehensive user manual for the VJOYCAR 8.8-inch 4K HD Rear Entertainment Display for Tesla Model 3 and Model Y, covering installation, operation, features, specifications, and troubleshooting.

Vjoycar OBD2 HUD Dual Display Screen Instruction Manual

OBD2 HUD Dual Display Screen • April 23, 2026
Comprehensive instruction manual for the Vjoycar OBD2 HUD Dual Display Screen, providing detailed information on setup, operation, features, specifications, and troubleshooting for enhanced driving safety and data monitoring.

Vjoycar V60 / A501 OBD2 Car Head Up Display User Manual

V60 / A501 • 1 PDF • April 21, 2026
Comprehensive user manual for the Vjoycar V60 / A501 OBD2 Car Head Up Display, covering installation, operation, features, specifications, and troubleshooting for this smart car gauge with dual…

VJOYCAR support FAQ

Common questions about manuals, registration, and support for this brand.

  • How do I install the VJOYCAR DIY wireless car alarm?

    The VJOYCAR DIY wireless alarm is designed for easy installation. It usually involves attaching the magnetic siren to a steel surface under the hood, connecting the red and black cables to the positive and negative terminals of the car battery, and placing the air pressure sensor into the cigarette lighter socket.

  • How do I reset my VJOYCAR GPS tracker?

    Reset procedures vary by model, but many VJOYCAR trackers can be reset by sending specific SMS commands (such as 'RESET' or 'BEGIN123456') to the device's SIM number. Consult your specific model's user guide for the exact command.

  • Why is my OBD2 HUD not displaying correctly?

    If your VJOYCAR HUD is not displaying correctly, ensure your vehicle is compatible (typically gasoline cars manufactured after 2008). Ensure the OBDII cable is securely connected. You may also need to access the menu to calibrate the speed unit (KM/H vs MPH) or select the correct protocol.

  • Are VJOYCAR Tesla accessories compatible with all models?

    VJOYCAR offers specific accessories for different Tesla models (Model 3, Model Y, etc.). Always check the product description to ensure compatibility with your specific year and model, such as the 'Highland' or standard versions.

  • How do I update the firmware on my VJOYCAR device?

    Firmware updates are typically handled via a USB connection to a Windows PC using the 'Uplink' software available from the Vjoychina website, or via OTA (Over-The-Air) updates for connected smart devices.