I just got myself a Toyota Highlander XSE, it went well at first, but somehow it getting kinda off, we suddenly got a secondary collision brake system malfunction alert, also the check engine light came on at the 10K, 13K, and 15K miles.

At the 10K miles mark, the light went on, brought the car to the dealership. They said that a camshaft exhaust issue triggered the alert, but there was no repair, only a reset on the alert. Then at 13K miles, the light went on for a week, then went off by itself before the scheduled service. The last one happened again at the 15K miles mark, but again, the dealership didn't find any fault and simply reset the alert.

They reassured me that the case is open, but I'm still worried that nothing can be done.