My Lexus RX had a constant squeaking noise while braking. They replaced the brake pads and resurfaced the rotors, and now it stops smoothly and quietly.
Doors stopped unlocking consistently even with a new battery in the key fob; Josh traced it to a failing door handle sensor and replaced it, convenience...
A collision avoidance warning kept popping up randomly, and Josh traced it to a misaligned front radar sensor after minor road debris impact, recalibrated...