Add FSD to a Mazda CX-9? Here's what works
Tesla's FSD stays on Teslas. But your CX-9 can steer itself and follow traffic with one device plugged in behind the mirror.
Yes. Your CX-9 is on comma's list.
comma lists the 2021–2023 CX-9. Every trim qualifies. The car's own adaptive cruise keeps speed control. Steering help starts above 28 mph.
Steers itself in the lane
Continuous centring on highways and most roads, not a nudge back from the line.
Follows the car ahead
Your car's adaptive cruise keeps doing the gas and brakes while openpilot steers.
You stay in charge
A driver camera checks your eyes. No city turns, no naps, no FSD claims.
How to add it to your CX-9
Four steps. No wiring cut, no dealer visit.
- 1
Confirm your year and trim
Open your exact CX-9 below. Trim names decide whether the car has the cruise and camera openpilot needs.
- 2
Order the comma four with the Mazda connector
Pick your car in comma's shop and the right harness is added. Nothing else is required.
- 3
Mount it behind the mirror
Stick the mount high and centred, plug the harness in at the camera, and route one cable. About fifteen minutes.
- 4
Drive a few minutes, then engage
It calibrates on your first drive. Then press your cruise button and the CX-9 takes the lane.
What the first drive is like
Every CX-9 comma lists
Open your year for the exact trim, harness, and what controls speed.
i-Activsense versus openpilot
Mazda's Cruising and Traffic Support centres the lane on top trims only. openpilot adds highway centring to the CX-5, CX-9, and Mazda3 comma lists.
Questions CX-9 owners ask
Is this Tesla FSD for a CX-9?
No. FSD is Tesla software for Tesla cars. This is openpilot, an open-source driver-assist system that steers and follows traffic on your CX-9. You watch the road and stay responsible.
Which Mazda CX-9 years work?
comma lists the 2021–2023 CX-9. Open the exact year below to confirm your trim.
Do I keep i-Activsense?
Yes. The harness sits between the car and its camera, and your factory safety features keep working. Unplug it and the car is stock again.
Does it handle stop-and-go traffic?
Yes on the listed CX-9 years. It slows to a stop behind traffic and moves off again on its own.
Is there a subscription?
No. The device and the software are a one-time purchase. comma prime is an optional extra for remote access and longer drive storage.
Do I need to keep my hands on the wheel?
Not constantly. A small camera watches that your eyes stay on the road, and openpilot warns you and stops steering if they do not.
Other Mazda models
Every Mazda on the list Photo: comma.ai. Years and trims come from comma's official supported-cars table for stock openpilot. FSD is a Tesla trademark; openpilot is separate open-source software. CommaGuide is an independent guide and earns a referral credit on some orders.