Mazda CX-30 adaptive cruise problems

Filed Apr 7, 2026 · Driver assistance · MA

On multiple occasions while driving in rain/snow/ice, the vehicle will initially throw an "i-ACTIVESENSE Partially Disabled Due to Camera Malfunction" error. This initially disables adaptive cruise control, lane keeping, blind spot detection, etc. This error immediately then cascades to throw a "Dynamic Stability Control Malfunction" error as well as an "ABS Malfunction" error, suggesting that both dynamic stability control and ABS are disabled. This issue has occurred roughly 50% of the time it rains/snows, and usually persists for 1-2 days even after fully clearing the windshield where the front camera system is located. This has caused me to have to drive the vehicle several times now in the rain and snow without ABS and dynamic stability control active -- this is a serious safety issue. It is understandable for a front camera malfunction to disable sensing features (like lane keeping), but this should not disable necessary safety features such as ABS and stability control. It is clear that there is a cascading sensor malfunction in this vehicle (possibly related to an earlier similar recall in 2024 models), that causes serious safety concerns.

Filed Mar 4, 2026 · Driver assistance · UT

The I-Activesense camera disables all the time while driving. It disabled cruise control, LKA and LKA warning as well as auto high beams. While driving at highway speeds, when the vehicle drifts slightly over the line it does not get corrected nor do I receive ANY warning. It's almost as if the system knows it's there but doesn't want to turn on. While I was driving one day, it was very windy and the wind blew my car into the other lane slightly and almost collided with a vehicle. If the system was working that would not have happened. The problem was addressed at the dealership and I was told it was "normal". I've watched many videos on this exact model and trim. It is supposed to put my vehicle back into the center of the lane if it drifts over the lines. I will also add that every time this happens, the weather is perfect and nothing is obstructing the camera. The warning lamps that come on are the sensors disabled, auto high beams, forward collision, and cruise control

Filed Feb 7, 2026 · Driver assistance · PA

Cruise control and lane keeping system engaged. Vehicle will occasionally aggressively apply brakes, when nothing visible is in front of the vehicle. This has nearly cause our car to be rear ended on a number of occasions. I suspect the system mistakenly interprets a building or vehicle shadow as a physical object. This response has also occurred when vehicle in front (cruise control distance at slower speed) turns right. Again, nearly causing vehicle behind to be rear ended.

Filed Dec 5, 2025 · Acceleration, Driver assistance · CO

Warning sensors activate randomly- of oncoming vehicles- in my opinion for no reason. Enough space between cars. Normal speeds, etc. Warning sensor to engage Brakes activate without sufficient reason. More than enough space between cars, normal speeds. Occasionally, it feels as if cruise control has taken over and slows the car down (not braking exactly, but controlling the speed by decreasing it). Acceleration also seems to randomly be controlled in the same manner.

Filed Dec 4, 2025 · Fuel system, Steering · CO

I have noticed over 30 things wrong with this car. Including but not limited to- the FIRST THINGS I mentioned to the dealership there seems to be apull to the right (suspension/alignment). The car randomly starts driving or feeling 'jerky" as if cruise control has taken over - 'phantom braking' is a term I came across that sounds accurate to me. And now, after having the vehicle for almost 30 days- there is significantly less mpg.received. 300 first tank vs about 250 this current tank.

Filed Nov 1, 2024 · Driver assistance · WV

when driving on the highway in a turn with nobody around with the adaptive cruise set the car it will brake depending on how sharp the turn sometime 5 mph sometimes up to 12 mph like someone just stomped the brake pedal

Filed Sep 4, 2024 · Driver assistance · AZ

When the cruise control is canceled and the speed has dropped more than a couple of MPH when it re-engages the accelerator goes full throttle just like you've mashed the pedal to the floor. Also when in an HOV lane with a dividing wall to the left and going around a highway curve it modulates brake/gas/brake/gas, etc. It will also occasionally pick up another vehicle on either side when on a highway curve and do the same thing. But it seems to operate properly in a straight line. I have spoken with Mazda Customer Service several times. The 1st case which was opened they never contacted me and closed the case. The 2nd time they have contacted me on several occasions but I don't seem to be getting their attention.

Filed Apr 24, 2024 · Electrical · 900 miles · NC

The contact owns a 2024 Mazda CX-30. The contact stated that the instrument panel was illuminated with several warning lights. The contact stated that the rearview camera and the cruise control failed to operate as intended. The vehicle was taken to the dealer but not diagnosed. The vehicle was not repaired. The manufacturer was made aware of the failure and opened a case regarding the failure. The failure mileage was 900.

Filed Sep 7, 2023 · Acceleration, Driver assistance · WA

Adaptive cruise control on at 70mph, speeding car pulls into my lane with no gap (completely cut me off), hard brake by computer, I did not tap the brake to take it off of cruise, car that had cut me off zigs into another lane while adaptive cruise control has car at about 40 mph due to hard brake. As car in front pulls out of the lane, adaptive cruise control guns the engine to 3500-4000 rpm since there was no obstruction in front of it anymore and it wanted to go back to the 70 mph preset. During this incident the Engine Malfunction light comes on, warning to get car serviced. Upon taking it in for service they found that the thermostat needed to be replaced? This seems unlikely. Car has only 15k miles on it. I have another model Mazda and the adaptive cruise control has gunned it in a similar manner, taking the car well past 3000 rpm. Mazda needs to reprogram.

Filed Jun 7, 2023 · Acceleration, Driver assistance · WI

After setting the adaptive cruise control, and overriding it with the accelerator pedal when approaching a vehicle in front of me to pass it, my vehicle briefly accelerated hard while switching lanes after clearing the vehicle in front of me. This happened even though I had taken my foot off the accelerator already. My current speed was also slightly higher than the set cruise speed. E.g. I set it to 75, I was driving 77 and it jumped up to 80 for a short while before settling back to 75. This acceleration happened right as I cleared the vehicle in front of me and I was in the other lane. You can feel the sudden acceleration. It is as if the radar noticed the vehicle wasn't in front of it any more so it accelerated disregarding the current speed or accelerator position.