Camera stops when engine is off

The yellow ACC wire senses ignition status to switch between driving and parking mode. If the mode doesn’t change, ensure the ACC wire is connected to an ignition-triggered circuit and parking mode is enabled on the menu.

Camera stops unexpectedly during parking mode

This usually occurs if the battery reaches low-voltage cutoff or the parking timer ends.

Camera keeps recording after turning off the engine

Confirm the ACC wire is correctly connected to an accessory circuit (not constant power).

How to install the dash cam hardwire kit?

Connect the red wire to a constant power source using a fuse tap. Connect the yellow wire to a circuit that only has power when the ignition is on (ACC). Securely ground the black wire to an unpainted metal point.

Does hardwire cable have low voltage protection function?

Yes, the hardwire kit features built-in low-voltage protection. It automatically cuts power to the dash cam when your vehicle's battery drops to 11.8V (for 12V systems) or 24.8V (for 24V systems), preventing battery drain.

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🔒 Power your peace of mind—24/7 dash cam protection made effortless!

SMART BATTERY SAVER - Customizable voltage cut-off protects your vehicle battery from draining, ensuring reliable starts every time.
SEAMLESS MODE SWITCHING - Automatic ACC detection toggles between parking and driving modes without lifting a finger.
COMPLETE INSTALLATION KIT - Includes 8-piece full set fuse taps and a 13.1ft concealed wiring harness for a clean, professional setup.
ROUND THE CLOCK SURVEILLANCE - Keep your dash cam recording even when your engine is off—never miss a moment in parking mode.
UNIVERSAL VEHICLE COMPATIBILITY - Works flawlessly with cars, trucks, SUVs, and big rigs running 12V to 24V systems.

The VIOFO HK4 Hardwire Kit delivers continuous power to compatible dash cams (A329S, A229Plus, A119Mini2, and more) with smart low voltage protection and automatic parking mode activation. Designed for 12V-24V vehicles, it includes an 8-piece fuse tap set and a 13.1ft concealed wiring harness for a sleek, professional installation that safeguards your battery while ensuring uninterrupted surveillance.