Question

product knowledge braking systems level 2
customers who have brake pads with surface grooves should:
install new hardware and use a synthetic brake lubricant
have their entire braking system examined
replace their calipers or rotors and pads
replaced their rotors

Explanation:

Surface grooves on brake - pads can indicate issues with calipers, rotors, or the pads themselves. Replacing calipers or rotors and pads addresses potential causes of the grooves and ensures brake - system functionality and safety.

Answer:

Replace their calipers or rotors and pads