You need to remove the tire and wheel, inflate the tire to the manufactures specified pressure as stated on the tire, submerge the tire/wheel into a water bath to locate the leak, indicate the leak areas, then indicate the orientation of the tire to the wheel, remove the tire from the wheel, scuff the inside of the rim surface at the leak area, clean the leak area. Then apply a 3 mm (0.12 inch) thick layer of adhesive/sealant, GM P/N 1052366 or equivalent, to the leak area, allow for the adhesive/sealant to dry, align the inscribed mark on the tire with the valve stem on the wheel, install the tire to the wheel, inflate the tire to the manufactures specified pressure as stated on the tire, submerge the tire/wheel into a water bath to ensure the leak is sealed, balance the tire and wheel, ultimately install the tire and wheel.
By BobGM Specialist
28/10/2022