How can I set the TERUNSOUl D016 dash cam to display both the front and rear camera views on the screen at the same time?

To display both the front and rear camera views simultaneously on your TERUNSOUl D016 dash cam, you need to use the Down Button (▼) located on the device.According to the manual, the Down Button (▼) serves as the toggle for display modes. Pressing this button while in the recording interface will cycle through the following views:Front camera full screenRear camera full screenSplit screen mode (showing both front and rear views at the same time)Simply press the Down Button (▼) repeatedly until the split-screen layout appears on the 3-inch IPS display. Note that if you are currently connected to the TERUNSOUl mobile app via WiFi, the physical buttons on the camera may be disabled; you may need to disconnect the WiFi or use the app to manage the live view settings.

How can I power my TERUNSOUl D016 dash cam to access files if I do not have the original DC power cord?

Yes, you can still power your TERUNSOUl D016 dash cam and access your files without the original DC car charger. The device uses a standard USB-C port for power. You have two primary options:Use a standard USB-C cable: You can connect the dash cam to a wall outlet using a standard USB-C cable and a mobile phone power adapter, or plug it into a computer's USB port. This will provide enough power to turn the device on and navigate the menus or use the built-in screen for playback.Remove the MicroSD Card: The most reliable way to access your files after an accident is to remove the 128GB microSD card from the side of the camera. You can then insert this card into a computer (using a microSD card reader) to view, copy, or save the video files directly. This avoids the need to power the camera at all.Note: If you choose to power the camera via a computer USB port, the device may enter "Mass Storage" mode, allowing you to browse the files on your computer as if the camera were a USB drive. If you need to use the TERUNSOUl App via WiFi, a standard wall charger is recommended to ensure the device has stable power.

TERUNSOUl D016 4K+4K Dual Dash Cam User Manual

1. Introduction

Thank you for choosing the TERUNSOUl D016 4K+4K Dual Dash Cam. This device is designed to provide comprehensive video surveillance for your vehicle, recording both front and rear views in high definition. It features advanced functionalities such as built-in GPS, 5.8GHz WiFi for app control, G-Sensor for incident detection, enhanced night vision, and 24-hour parking monitoring. Please read this manual thoroughly before use to ensure proper installation and operation.

2. Product Overview

TERUNSOUl D016 4K+4K Dual Dash Cam with front camera, rear camera, suction cup mount, and 128GB microSD card.

Image: The TERUNSOUl D016 dash cam system, showing the main front camera unit, the smaller rear camera, the suction cup mount, and an included 128GB microSD card.

The TERUNSOUl D016 is a high-performance dual dash camera system. Key features include:

Dual 4K Recording: Simultaneous front and rear recording at 3840x2160P resolution.
170° Wide Angle: Front camera provides a wide field of view.
Built-in GPS: Records driving routes, locations, and speed data.
5.8GHz WiFi & App Control: Connects to the TERUNSOUl App for live viewing, video management, and firmware updates.
G-Sensor: Automatically locks video footage during collisions or sudden impacts.
Super Starlight Night Vision: Enhanced clarity in low-light conditions with F1.5 (front) and F1.8 (rear) apertures.
24-Hour Parking Monitoring: Time-lapse recording and G-sensor detection for vehicle protection when parked (requires hardwire kit, sold separately).
Loop Recording: Ensures continuous recording by overwriting the oldest unlocked files.
Included 128GB MicroSD Card: Ready for immediate use, supports up to 512GB.

3. Package Contents

Please verify that all items are present in your package:

4K Dash Cam (Front Unit)
4K Rear Camera
GPS Suction Cup Mount
TERUNSOUl 128GB microSD Card (pre-installed)
21ft Rear Cam Extension Cable
11ft USB-C Fast Car Charger
User Manual
Quick Start Guide
5x Cable Clips
Wire Trim Tool
Electrostatic Films
Cleaning Pads

Diagram showing all included accessories for the TERUNSOUl D016 dash cam, including the front and rear cameras, mount, cables, microSD card, and tools.

Image: An illustration detailing all components included in the TERUNSOUl D016 dash cam package.

4. Setup and Installation

4.1 Memory Card Installation and Formatting

The 128GB microSD card is pre-installed. Before first use, or if you replace the card, it is recommended to format it within the dash cam's settings to ensure optimal performance. The dash cam supports up to 512GB microSD cards.

Insert the microSD card into the designated slot (if not already inserted).
Power on the dash cam.
Navigate to the system settings menu.
Select "Format SD Card" and confirm.

4.2 Mounting the Dash Cam

Clean the windshield area where you intend to mount the front camera. Ensure it does not obstruct your view.
Attach the electrostatic film to the chosen area on the windshield.
Attach the GPS suction cup mount to the electrostatic film.
Slide the main dash cam unit onto the GPS suction cup mount until it clicks into place.
Adjust the camera angle to ensure a clear view of the road ahead.

Front view of the TERUNSOUl D016 dash cam mounted on a windshield with a suction cup.

Image: The front dash cam unit mounted on a vehicle's windshield using the suction cup mount.

4.3 Installing the Rear Camera

Mount the rear camera on the rear windshield, ensuring a clear view.
Connect the rear camera to the main front unit using the provided 21ft extension cable.
Route the cable neatly along the vehicle's headliner and pillars using the cable clips and wire trim tool.

Diagram illustrating the installation of the front and rear dash cameras and cable routing within a car.

Image: A visual guide for connecting and routing the front and rear camera cables within a vehicle.

4.4 Power Connection

Connect the 11ft USB-C car charger to the main dash cam unit.
Plug the other end of the charger into your vehicle's 12V power outlet (cigarette lighter socket).
The dash cam will automatically power on and begin recording when the vehicle's ignition is turned on.

5. Operating Instructions

5.1 Basic Controls

Diagram of the TERUNSOUl D016 dash cam buttons and their functions.

Image: A detailed illustration of the dash cam's buttons and their corresponding functions.

Menu Button (M): Press once to enter/exit menus. Press to go back to the previous screen in menu mode.
Up Button (▲): Press once to move up in menus or play previous video in playback. Hold for 2 seconds to turn Wi-Fi on/off in recording mode.
Emergency Lock Button (🔒): Press once to lock/unlock video (indicator turns yellow when locked). Hold for 1 second to take a photo.
OK Button (OK): Press once to turn On/Off recording. Press to confirm/select in menu mode.
Power Button (⏻): Press once to turn screen off (while device is on). Hold for 2 seconds to power on/off the device.
Down Button (▼): Press once to switch front/rear camera view, split screen mode, etc. Press once to move down one line in menu. Press once to play next video in playback. Press and hold for 2 seconds to enable/disable audio recording (Recording Interface).
File Button (☰): Press once to enter file management.

Note: Once the dash cam is connected to the app, the physical buttons may be disabled. Configure the dash cam through the app or disconnect Wi-Fi first.

5.2 Loop Recording

The dash cam records continuously in 1, 3, or 5-minute segments. When the memory card is full, the oldest unlocked video files will be automatically overwritten to make space for new recordings. Locked videos (triggered by G-Sensor or manual lock) will not be overwritten.

Illustration of loop recording functionality, showing older files being overwritten by new ones, with locked files protected.

Image: A visual explanation of how loop recording works, ensuring continuous footage.

5.3 G-Sensor (Emergency Accident Lock)

The built-in G-Sensor detects sudden impacts or collisions. When an event is detected, the current video segment is automatically locked and saved to prevent it from being overwritten by loop recording. This ensures critical evidence is preserved.

Image showing two cars involved in a collision, with a lock icon indicating G-Sensor activation.

Image: The G-Sensor feature automatically locking footage during a collision.

5.4 24-Hour Parking Monitoring

To protect your vehicle when parked, the dash cam offers 24-hour parking monitoring with time-lapse recording and G-sensor detection. In time-lapse mode, the camera records at a low frame rate, saving storage space. If a collision is detected while parked, the G-sensor will trigger normal recording and lock the video.

Note: A separate hardwire kit (TERUNSOUl Ultimate USB Type C Hardwire Kit, ASIN: B0FNB4BPK2) is required for the 24-hour parking mode to function. This kit is not included in the standard package and must be purchased separately.

Illustration of a car parked with a glowing shield, indicating 24-hour parking monitoring, and a hardwire kit diagram.

Image: The 24-hour parking monitor feature, highlighting the need for a hardwire kit.

5.5 Built-in GPS Tracking

The integrated GPS module records precise driving routes, locations, and speed data directly onto your video footage. This information can be viewed in real-time on the 3-inch IPS screen or later via the TERUNSOUl App or a dedicated GPS Player software on Windows/Mac.

Image showing a car driving on a road with GPS tracking overlay, and a laptop displaying GPS data with video playback.

Image: GPS tracking in action, displaying route and speed data on the dash cam screen and a computer application.

5.6 Super Starlight Night Vision

Equipped with enhanced WDR (Wide Dynamic Range) and Starlight CMOS Sensor technology, the dash cam delivers clear and vibrant video quality even in challenging low-light conditions. The large F1.5 (front) and F1.8 (rear) apertures allow more light to reach the sensors, improving night recording performance.

Image of the dash cam screen displaying a clear night view of a car from behind, highlighting night vision capabilities.

Image: The dash cam's display showing clear night vision footage of a vehicle.

5.7 TERUNSOUl App Control (5.8GHz WiFi)

The dash cam features dual-band 5.8GHz and 2.4GHz WiFi for fast and stable connection to the TERUNSOUl App (available on iOS and Android). The app allows you to:

View live video feed from both cameras.
Replay recorded videos and photos.
Download files to your smartphone at high speed.
Share recordings directly to social media or with insurance companies.
Remotely manage camera settings.
Perform Over-The-Air (OTA) firmware updates.

Smartphone screen displaying the TERUNSOUl app interface with options to view, replay, share, and download dash cam footage.

Image: The TERUNSOUl mobile application interface for managing dash cam recordings and settings.

6. Maintenance

Regular Formatting: To maintain optimal performance and prevent data corruption, it is recommended to format the microSD card monthly. Back up any important files before formatting.
Cleaning: Use a soft, dry cloth to clean the camera lenses and the dash cam screen. Avoid abrasive cleaners.
Firmware Updates: Regularly check for and install firmware updates via the TERUNSOUl App to ensure your dash cam has the latest features and improvements.
Temperature: The dash cam is designed to withstand temperatures from -4°F to 158°F. Avoid prolonged exposure to extreme temperatures outside this range.

7. Troubleshooting

Problem	Possible Solution
Dash cam does not power on.	Ensure the car charger is securely connected to both the dash cam and the vehicle's 12V outlet. Check if the vehicle's 12V outlet is functioning (e.g., by plugging in another device). Try a different USB-C cable or car charger if available.
Recording stops or files are corrupted.	Format the microSD card regularly within the dash cam settings. Ensure you are using a high-quality microSD card (Class 10 or higher, U3 recommended). The card may be full; enable loop recording or replace with a larger capacity card.
WiFi connection issues with the app.	Ensure Wi-Fi is enabled on the dash cam (hold Up button for 2 seconds). Make sure your smartphone is connected to the dash cam's Wi-Fi network. Restart both the dash cam and your smartphone. Ensure the TERUNSOUl App is updated to the latest version.
GPS not tracking location/speed.	Ensure the GPS suction cup mount is used, as it contains the GPS module. Verify that the dash cam has a clear view of the sky for satellite reception. Allow a few minutes for the GPS signal to acquire after starting the vehicle.
Parking mode not working.	Confirm that the optional hardwire kit is correctly installed and connected. Check parking mode settings in the dash cam menu.

8. Specifications

Model: D016
Video Resolution: Front 4K (3840x2160P), Rear 4K (3840x2160P)
Front Camera Angle: 170° Wide Angle
Display: 3-inch IPS Screen
WiFi: Dual-band 5.8GHz & 2.4GHz
GPS: Built-in for route, location, and speed tracking
G-Sensor: Automatic Incident Detection
Night Vision: Super Starlight Night Vision with F1.5 (Front) / F1.8 (Rear) Aperture, WDR
Parking Mode: 24-Hour Time-Lapse + G-Sensor (requires optional hardwire kit)
Storage: Supports up to 512GB microSD card (128GB included)
Loop Recording: Yes (1/3/5 min segments)
Operating Temperature: -4°F to 158°F (-20°C to 70°C)
Dimensions: 1.46 x 3.4 x 1.97 inches (main unit)
Weight: 1.79 pounds

9. Warranty and Support

TERUNSOUl provides an 18-month warranty for the D016 Dash Cam. If you encounter any issues or have questions regarding your product, please contact our 24/7 customer support team. Our dedicated after-sales team is ready to assist you.

For support, please refer to the contact information provided in your Quick Start Guide or visit the official TERUNSOUl website.