Is the car mechanic responsible to adjust the brake calipers when changing the rotors?

Yes, the car mechanic is generally responsible for adjusting the brake calipers when changing the rotors. Proper adjustment ensures that the calipers align correctly with the new rotors, which is essential for optimal braking performance. Failing to adjust the calipers can lead to uneven wear and decreased braking efficiency. It's important for the mechanic to check the entire braking system during such maintenance.