Two weeks after I got the vehicle, I was driving on a highway doing speeds of 45 to 74. The drivers land change assist was not working as a car was right beside me several times I noticed and the light was off. My son mentioned it. Dec 22, 2017 2) I was driving at dusk on cruise control 74 mph and the car suddenly braked and a warning brake! was on the dash. I was in the fast lane with no objects or car in front.

- Sarasota, FL, USA

While driving my 2017 Mazda Cx-5, the smart city brake support (scbs) indicator illuminates on the dash. This has happened multiple times over the past several months, on clear, sunny days and in rain and/or snow; on city streets and highways. The rate of driving speed varies from approx 10 to 65 mph. The indicator stays on for anywhere from 20 seconds or until the vehicle is stopped (upwards of 20 minutes). Service techs at local dealer were able to pull the fault code from the computer, but it was generic and gave no guidance. Mazda initially acknowledged this was a problem and replaced the camera that controls the system (mounted interior of car at windshield), but when problem persisted with the new camera, Mazda said it's "normal" for the lamp illumination to display on the dash under various driving conditions and referenced service alert sa-052/17, which discusses fog, rain, exhaust gas from vehicle in front, etc. Triggering the scbs. According to this service alert, a dirty windshield will also trigger the warning light to illuminate. This is a safety concern because not only is the scbs not functioning properly, when the light illuminates it distracts from the act of driving.

- New Hartford, NY, USA

The contact owns a 2017 Mazda Cx-5. while driving approximately 5 mph in bumper-to-bumper traffic, the seat heater became very hot. In an attempt to turn down the seat heater, where the switch button was "exactly an inch" from the ignition switch, the contact unintentionally hit the ignition switch button and caused the vehicle to shut off in the middle of traffic. The check engine indicator illuminated. The contact was unable to immediately restart the vehicle. The contact called the California highway patrol. The vehicle restated 15 minutes before the highway patrol arrived at the scene. The vehicle was towed to fremont Mazda located in the fremont auto mall (39800 balentine dr, newark, ca 94560) where it was diagnosed that the seat heater switch was too close to the ignition switch. The technician stated that there was nothing wrong with the vehicle. The manufacturer was made aware of the issue, but did not assist. The failure mileage was approximately 3,300.

- Emeryville, CA, USA

The contact owns a 2017 Mazda Cx-5. the contact stated that the smart city brake system failed to function properly when activated and modified to a specific distance or speed. The dealer (Mazda of mesquite, 15900 lyndon B johnson fwy, mesquite, tx 75150, (972) 686-6200) was notified, but was unable to replicate and diagnose the failure. The manufacturer provided a tsb that indicated that, without a warning indicator or warning chime, the function was not able to be replicated and the system was performing normally. The manufacturer did not send a technician to test drive the vehicle and determine if the function was properly working. The failure mileage was 0.

- Mesquite, TX, USA