2024 MAZDA CX-90 Complaints

I am reporting a safety problem with the adaptive cruise control feature of my 2023 Mazda CX-90. The adaptive cruise control system does not detect the lanes correctly and applies the brakes unnecessarily, even when there are no cars in front of me. This happens especially on curves and when there are trucks on other lanes. This is very dangerous and I have been close to be rear-ended several times. I do not feel safe driving this car with this feature on. I haven't contacted my dealer, but it seems to be a well known issue for many owners. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

When using the adaptive cruise control on a multi-lane highway the system will detect trucks/larger vehicles moving into your lane on a slight curve when they are not. The system will apply brakes to avoid a collision. The first time this happened there was no vehicle moving into my lane but there was an 18-wheeler behind me that wasn't expecting my vehicle to brake and they almost rear-ended me. This happened several other times before I understood the problem and turned the system off. I have reported this to my dealer and they stated the problem couldn't be replicated. This has been reported multiple times by other CX-90 drivers on this site and Mazda will get someone injured or killed if this is not fixed. If you drive a CX-90 do not use the cruise control until this is addressed by Mazda.

The steering becomes “sticky” at highway speeds. The wheel resists turning until sufficient force is applied, and then slips to a next setting or “notch”, where it further rests until force is applied. The effect is not particularly pronounced at low speeds but very noticeable at regular highway speeds (~60 mph). No great force is required to turn the wheel from one “notch” to the next, but the resistance and continual need for readjusting course (because of the “stuck” steering wheel) are fatiguing over time.

When using adaptive cruise control and you are driving on a curve, if there is a vehicle, guard rail or jersey barrier in the next lane or on the side of the road, the vehicle will brake hard thinking there’s something in front of it. It has even happened when there was a hillside next to the road. This is very dangerous on a high speed highway. It can slow down from 75 mph to 45 mph in a very short amount of time.

When going into curves on interstate, car thinks its gonna hit something and slams on the brakes when cruise control is engages. When passing a semi (semi slow lane, passing in passing lane), vehicle detects something in front of it and slams on the brakes. Does this on straight stretches. Slows down extremely fast to mabye 40 mph, then floors it once it thinks the "obstacle" has disappeared and speeds back up to the set speed as fast as it can. Sometimes does it when no othwr vehicles near it on straight stretchss of highway. This is gonna cause accidens. I don't trust the adaptive cruise control feature because it does this. This isn't weather or light related. Does it all the time.

When adaptive cruise control is engaged, and travelling in the left lane of a multilane highway, automatic braking frequently activates when there is a vehicle ahead in the right lane (especially, but not always, a truck) but no hazard in the lane directly ahead.

When a large object like 18wheeler is in right lane and you are in left lane the car thinks it is in your way and the vehicle brakes hard. Very dangerous. Has happened numerous times.

While using the radar cruise control, the vehicle will aggressively apply braking pressure, without warning and risk losing control of the vehicle. The risk of being rear ended is frightening at highway speeds. This usually happens through turns, and the Mazda mistakes vehicles in opposite lanes as being in the same lane. This has occurred multiple times with different people.

Cruise control safety concern: car detects vehicle in front when there isn't and brakes sometimes hard abruptly due to misdetecting a vehicle ahead in a different lane as is it was in the car's same lane specially in curves or if the vehicle ahead but in a different lane is casting a shadow in front of car. Blind spot: blind spot detects a vehicle in the blind spot even when there's no vehicle. Noticed that car sometimes detects vehicles on an opposite direction road as if they're in the blind spot and it can set off the blind spot monitor.

When driving on a highway with cruise control on. If you are in an outside lane and the is a tractor-trailer in the inside lane maybe 100-200 feet ahead of you. If the highway veers to the left even though the truck remains in the inside lane the system seems to think the truck is right in front of the car. Cruise shuts down and it starts to brake. I have almost gotten hit by cars behind me twice. It has happened 4 times now. The first time was in mid June 2023 and three other times since. I asked about it and was told to go with manual cruise - I would have to manually do that each time I want to use it. Not acceptable and very unsafe. Reports of this type of incident have shown up several times on the Facebook Mazda CX-90 site. One other problem is with the front bushings. A hard right turn going over any kind of bump causes a severe rubbing sound.