There are 5 owner-reported driver assist & adas complaints for the 2021 Mazda CX-5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
My Mazda 2021 infotainment screen goes goes out usually when hit a bump and stays out until it sits awhile. Which when this happens there is no backup camera which is a safety issue. The Mazda dealership said it was the screen which they wanted $2900 just for the screen so I got one off eBay and it's still doing the same thing. Which I think its the CMU
In under 36 months failure of the front sensing camera disabled parking brake, traction control, emergency braking assistant, traction control, lane keeping assistance and lane departure warning
While Driving the car in highway and you turn signals to change lanes and that moment you start changing the automatic brake system activated and car suddenly brake almost making me get in to a rear collision this happens twice in highway, it also happens twice in city driving while cruising street and theres is nothing in front of you the emergency brake light shows brake as emergency and car suddenly brake without having anything on front
BSM Does not see all vehicles in the blind spot. It is very inconsistent. I have taken it to the dealer who told me that they could not repair it because no fault code shows up. Mazda has not been helpful.
The blind spot monitoring system does not function properly. While on the freeway some vehicles show up and some do not. I took it to the dealer, and they test drove it and said it was working properly and there were no codes. I contacted Mazda and they made a second appointment for me, and I took it back. I told them that it only does it on the freeway and I sent them a video showing the problem. They said they drove it again (not on the freeway) and told me it worked fine and since there was no code, they could not fix it. I called Mazda again and they told me they could make an appointment at another dealer. The nearest dealer is an hour away and they had my vehicle for 7 days the first time and three days the second time. I don't have the ability to take it an hour away and leave it for days. This is a safety issue and needs to be repaired. I had the same vehicle only it was a 2018 and never had this problem.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026