Off-Road Traction Assist mode https://www.mazdausa.com/static/manuals/2021/cx-30/contents/05060503.html

 

https://www.mazdausa.com/static/manuals/2025/cx-30/contents/65300700.html

 

Oops. OP was asking about the button on the left not the right one my reply was about. Good catch!

 

Thanks very much! The manual is great and very thorough, but sometimes hard to drill down to find something!

 

I just love (he said sarcastically) the "on selected models" wording that, more often than not, sidesteps a question I may have about my specific trim model. Being able to get a straight answer is one reason I love this forum.

 

Turns off some alert audio, e.g. if you go over the speed limit. First button I press after backing off my drive! (Only because the speedo overreads by 2 mph).

 

Thanks! Will give it a go to hear diff!

 

It looks like the i activesense button, so it probably turns off the alert for it.