The comma shop is the only official retailer of comma devices (the comma two and comma three). The comma shop accepts all major credit cards. We offer free shipping in the U.S. and $30 flat rate international shipping.
It’s easy to install! Follow the video guides or use the step-by-step walk through below.
If setting up in a Nissan or GM, see install locations here.
Installation takes most users 30 minutes
How to upgrade from comma two to comma three
Removal method varies by car. The durable plastic often requires a strong tug to pop it off on Hondas. Toyotas often need a slide outward. If you’d like to see how it’s done, find a comma installation guide for your specific make on YouTube.
Unplug the existing LKAS camera connector and plug it into the harness. Now, connect the other end of the harness back into the LKAS camera.
Find where to place the harness box so the trim can still be installed over it. Peel off adhesive sticker and attach the harness in place.
Ensure the cable is fully seated.
The RJ45 cable must be brought across your car to your OBD-II port which is almost always found below the steering wheel to the left. Carefully run the cable behind the vehicle trim along the windshield, doorframe, or dash.
Plug the RJ45 cable into the comma power and then plug the comma power into the OBD-II port.
Ensure the cable is fully seated. For comma three, ensure the straight end is connected to the harness box.
Ensure the car harness fully fits inside the trim. Have the OBD-C cable come out of the top.
Clean the mounting area with the included alcohol wipe and let it dry.
Ensure the top of the mount is fully visible from the driver's seat.
Peel off the 3M tape on the mount. Press firmly in the center of the mount, then the edges. Ensure no bubbles form.
The mount must cure for 48 hours before installing the comma device. Skipping this step will compromise the integrity of the mount.
Clean all three lenses with the included microfiber cloth.
Plug the OBD-C cable into the back of the comma device. Make sure the cable is all the way in.
Pair your device and claim 3 free months of comma prime with connect.comma.ai on your mobile device.
Congratulations! Get started by watching the Installation Guide on our setup page. We find on average the installation process takes 15-30 minutes.
If you encounter an issue, we recommend you join our Discord community where hundreds of active users are available to help troubleshoot.
For updates on shipping dates, join the comma-shipping channel on Discord. Orders are fulfilled on Monday and Thursday. You can cancel your order for a full refund up until it ships by emailing firstname.lastname@example.org.
Installing a comma device does not require any permanent modifications to your car. With the car harness, most car trims remain in place.
Watch our Mounting Guide. First, figure out where on the windshield you would like to mount the device. We recommend it be centered on the windshield below the trim. Be sure to leave enough room to remove the trim in the future. Clean the windshield before mounting with the included alcohol wipe. Remove adhesive and hold mount in place with light pressure for 10 seconds. Remove the comma device and press firmly on the mount. Let the adhesive cure for 48 hours.
Before placing the device on your windshield, check the state and local laws and ordinances where you drive. Some state laws prohibit or restrict the placement of objects on the windshield of a motor vehicle. IT IS THE USER'S RESPONSIBILITY TO MOUNT THE DEVICE IN COMPLIANCE WITH ALL APPLICABLE LAWS AND ORDINANCES. Always mount your device in a location that does not obstruct the driver's view of the road. comma does not assume any responsibility for any fines, penalties, or damages that may be incurred as a result of any state or local law or ordinance relating to the use of your comma device.
Note: In California, a system with driver monitoring can be mounted on the top center of windshield.
From the FTC website: "Simply using an aftermarket or recycled part does not void your warranty. The Magnuson-Moss Warranty Act makes it illegal for companies to void your warranty or deny coverage under the warranty simply because you used an aftermarket or recycled part."
Contact your insurance provider directly; insurance coverage is between the user and their insurance provider. comma hardware users have been able to get coverage and discuss this on reddit here.
Insurance companies are beginning to understand the safety benefits of ADAS and LKAS systems like openpilot and we have not heard of any providers rejecting coverage to comma hardware users.
Although there's no official support for any software, it is comma's policy to continue providing software updates to hardware for 1 year after it is the latest generation sold.
Comma two will receive software updates through July 2022.
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