How to Install a Dash Cam: Step-by-Step Guide

Before you begin

Installing a dash cam is not a difficult project, but a few minutes of planning makes the work cleaner and avoids mistakes. First decide which cameras you need. A front-only cam handles the road ahead, while a front and rear dash cam gives you coverage behind your vehicle. If you drive for a ride-sharing service or want to record the cabin, consider a model with an interior camera. VIOFO, REDTIGER, and 70mai are common brands, and all follow the same basic installation routine.

Motor vehicle crashes are a leading cause of death in the United States, according to the CDC. A dash cam can give you a recorded account of an incident, but it only helps if the camera is installed and aimed correctly. Take a few minutes to do the job properly.

• Dash cam with mount and power cable
• Memory card
• Plastic trim tool
• Clean microfiber cloth
• Optional hardwire kit for parking mode

Choose a mounting location

Pick a spot behind the rearview mirror on the passenger side. This gives the lens a clear, centered view through the windshield and keeps the camera out of your sight line. Check that the camera sits within the area cleaned by the windshield wipers so rain and road spray do not block the lens.

Avoid placing the camera over sensor housings used by front crash prevention systems. IIHS explains that front crash prevention systems use cameras, radar, or lidar to detect vehicles ahead. Keep those areas clear so the vehicle safety systems can keep working normally.

• Behind the rearview mirror
• On the passenger side
• Within the wiper swept area
• Away from airbag cover seams
• Away from camera and radar sensor housings

Mount the front camera

Test-fit the camera before applying anything. Hold it up to the glass and confirm that the lens can see the road without the mirror blocking the view. If there is a rear camera, make sure the cable can reach the front camera before mounting anything.

Clean the windshield with automotive glass cleaner and dry the area completely. Suction mounts press directly against the glass; adhesive mounts use a pad and need a clean surface. After cleaning, press the mount firmly so it bonds evenly. Different dash cams use different mounting systems, so check the mount types article for advice on choosing between suction, adhesive, and static cling.

Route the power cable

Take the supplied cable and plug it into the camera, then route it upward along the windshield. Tuck it gently into the seam between the headliner and the glass using a plastic trim tool. Work a short section at a time, guiding the cable into the gap without forcing it.

When you reach the A-pillar, run the cable around the pillar rather than across it. If the trim is tight, lift the rubber door seal and place the cable behind it. Continue down the side of the windshield and under the dashboard toward the power source. Use cable clips if you cannot hide the cable completely.

• Do not route cables directly across an airbag cover
• Leave a little slack where the cable passes through moving parts
• Use a trim tool instead of a screwdriver to avoid scratching trim
• Coil extra cable under the dash and secure it with cable ties

Connect power

The easiest way to power a dash cam is the vehicle accessory socket. Plug the included adapter into the socket, connect the USB cable to the camera, and start the vehicle. The camera should power on and begin recording.

If you want a hidden cable and access to parking mode, use a hardwire kit. A hardwire kit connects to the fuse box with a fuse tap. Pick a fuse slot that turns off with the ignition for normal recording, or an always-on slot only if you plan to use parking mode. Check the charger or hardwire kit for low voltage protection to avoid draining the battery.

Some vehicles have multiple power sockets or USB ports, but the supplied adapter is the most reliable. Compare the advantages of cigarette lighter vs hardwire before you decide which power source matches your driving habits.

Install rear and cabin cameras

Attach the rear camera to the rear windshield or a license plate mount. Route the cable along the headliner, through the rubber boot between the body and the trunk lid, and back to the front camera. Leave a little slack at the hinge point so the trunk can open without tugging the cable.

Cabin cameras mount on the windshield or dashboard and face the interior. Aim them to capture the driver and passengers without putting the lens directly in the sun. Mirror dash cams strap over the factory rearview mirror and use a harness that plugs into the same power source.

Before mounting a rear camera, review rear camera wired vs wireless and rear camera mount types to choose the option that works for your vehicle.

Test the installation

After everything is connected, start the vehicle and check the camera screen or app. Confirm that the lens is level, the time and date are set, and the memory card is formatted in the camera. If you installed a rear camera, verify that it appears in the multi-channel view.

Use the microphone and any GPS features to check that they work. See the guide on how to test dash cam after install if you want a full checklist. Then drive a short test trip and review the recorded footage to make sure both cameras captured a clear image.

What to pick for your install

Questions

Can I install a dash cam myself?

Yes. Most dash cams come with a mount, power cable, and instructions. You only need a few basic tools and a clean windshield.

Where should I mount the front camera?

Behind the rearview mirror on the passenger side. Avoid placing it inside the sensor housing area used by front crash prevention systems and keep it out of your sight line.

How do I hide the power cable?

Tuck it into the gap between the headliner and the windshield, then run it around the A-pillar and under the dashboard. A plastic trim tool helps press the cable into seams without scratching the trim.

What if I do not want to use the cigarette lighter socket?

Use a hardwire kit connected to the fuse box or an external battery pack. A hardwire kit is the common choice for a clean, hidden cable and can support parking mode.

Do I need a professional installer?

Most installs are straightforward. Professional installation is an option if you prefer not to route cables or if your vehicle has complex trim, but many people complete the job themselves.

How long does installation take?

Time depends on the vehicle and how many cameras you are installing. A front-only install is quicker than one with a rear camera and a hardwire kit.