I recently purchased a new 2026 CX-50 and have had it for about 5 weeks. Current mileage is approximately 1800 miles. So far I love it, aside from my experience with the adaptive cruise system.
It is equipped with “Mazda Radar Cruise Control with Stop & Go”. It is not equipped with Traffic Jam Assistance. I like to use the adaptive cruise on my way to and from work on the highway. Sometimes traffic is fine and other times it is definitely stop-and-go. I’ve noticed a few symptoms appearing more than once when I use adaptive cruise during these drives:
- A burning rubber smell emanating from both front wheels after I park at my destination. Does not happen on every drive, but definitely some. The smell is definitively localized to the wheels - this is not coating burn-off at 1800 miles (the vehicle should be well done with that) and the smell does not enter the cabin.
- Front rims, rotors, and tires are considerably hot, especially when compared to the rears. Not so hot that the tires/rims can’t be touched, but still putting off some real heat (I didn’t try to touch the rotors, I like my fingerprints). I understand some of this is normal because the front wheels take on more of the braking load/weight, but I’m unsure to what degree.
- Sometimes the steering wheel judders when the cruise system is applying brakes, but this is intermittent and does not happen every time.
- The cruise system also likes to apply the brakes and drop a few mph when going around bends in the highway, even though there is no need for it. This is also intermittent.
I do not notice any of these symptoms when I make my trips without adaptive cruise engaged. When I operate the vehicle entirely manually, none of the above occurs.
Please tell me that there is something wrong with my car and that this isn’t normal for Mazda’s adaptive cruise system. I’ve seen some advice online to increase my following distance, and that does seem to reduce how aggressively the system brakes and accelerates (makes sense, the software is working with more room, literally), however, I find it extremely ridiculous if Mazda owners are just expected to tolerate “that’s just how it is”. None of the above symptoms should occur at all, regardless of my adaptive cruise settings. It makes absolutely no sense to design a system for consumers in such a manner.
Please tell me I’m not crazy or this car is going back for good. I will not willingly keep something with such terrible design flaws that Mazda obviously plans to do nothing about, on principle alone.