Brake pad life reset

[Bayboss23]

Hello I ordered new oem pads and rotors for my 22 Yukon xl I changed both front pads and rotors and the brake pad life will not reset I changed the brake pad sensor also I took it to autozone to try to clear the check engine light they didn’t see anything come up I disconnected the battery and I only have the check engine light on now and the brake pad is still at %17 from the old pads when I try to select the front pads both the rear and front are greyed out and it will only let me disable any help is appreciated I don’t have a diagnostic tool but am willing to buy one if anyone can recommend one thanks