Blind spot monitoring system warning appears on dashboard of vehicle after driving for about 50-60 miles. This occurs only when I drive >50-60 miles in one trip without shutting off my vehicle. Speed does not matter. My sensors will not work until I turn off my car and turn it back on. This started as soon as I purchased my vehicle in July 2020. 1 previous owner (lease) before I purchased the vehicle. No prior accidents. Got the vehicle at ~30,000 miles. In January 2021, I drifted off the freeway and hit a tree going 35 mph during a snow storm. It was only myself (driver) and a passenger in the front seat at the time of the incident. Both were wearing seatbelts. The seat belts locked up, but airbags never deployed for myself or the adult passenger in the front seat. Driver sustained no injuries, but the passenger smashed their knee into the glove compartment and smacked their head on the window/seatbelt holder on the side of the interior wall. The passenger was asleep during the incident, which may have explained why they did not brace themselves. One minute we were on the freeway, then we hit a slippery spot, and within seconds we were head on with a tree. Drove away to avoid the possibility of any vehicles following my path and smashing into us. Car was still driveable somehow. Car was repaired after 3 weeks at Caliber Collision and looked great. Sensor issue persists still, but unrelated to accident. Mentioned it to Caliber Collision when vehicle was being repaired and they had a Mazda service person come out with a sensor machine and they could not find the issue.

- Greenfield, WI, USA