New here, but thought I'd throw this out there. My 2021 CX-9 has done this same thing 3 times. As I'm going up a slight hill, it suddenly goes into limp mode. 7 different warning codes flash on the screen - Driver Attention Alert is disabled, Engine malfunction, Dynamic Stability Control malfunction, front radar sensor malfunction, I-ACTIVESENSE system malfunction, Smart Brake Support (SBS) and Forward Obstruction Warning (FOW) systems are disabled. Once I pull over, turn the car off and restart, everything is fine and the messages go away. No more limp mode. It happened randomly about 3 weeks ago. The rep at the dealer said it can be caused by a battery that needs to replaced. This was true, so we replaced it. Now, today, it happened TWICE. The common denominator is that I'm going uphill. The weather has been average or warm, not excessive at any time. My MazaApp displays all of those error messages multiple times. Once I erase all the messages, the only message that still displays (and has displayed every day since the first time) is "In-vehicle communication network malfunction." Everything is working the way it's supposed to, but I still have that message showing up every day in my app (ONLY in the app). The dealer could not find any codes when I took it there the first time. They say the MyMazda app leaves a lot to be desired. But obviously there is still a problem. Going into limp mode on a hill is scary, trying to find a good place to pull off. It happened the first time on a freeway, second time out on a windy country road, and the last time on the freeway.
Any thoughts? Is this a front radar malfunction?
Any thoughts? Is this a front radar malfunction?