For 1990-2009 cars

## Tire Dismounting and Mounting Procedure

Use a tire changing machine in order to mount or dismount tires. Follow the equipment manufacturer's instructions. Do no use hand tools or tire irons in order to change tires. This may damage the tire bead or wheel rim.

Clean the rim bead seats with a wire brush or coarse steel wool in order to remove lubricants, old rubber and light rust. Before mounting or dismounting a tire, lubricate the bead area with an approved tire lubricant such as GM P/N 9985555 (50 percent lubricant/50 percent water) or the equivalent.

After mounting, inflate the tire until the beads are seated, but never exceed 275 kPa (40 psi) to seat the beads.

Caution: To avoid serious personal injury, do not stand over tire when inflating. The bead may break when bead snaps over safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate the beads and reinflate. Overinflation may cause the bead to break and cause serious personal injury.

Install the valve core and adjust to the proper pressure. Verify that the locating ring of the tire shows around the rim flanges on both sides.

## Tire Dismounting and Mounting Non-Uniformed Tires

Use a tire changing machine in order to mount or dismount tires. Follow the equipment manufacturer's instructions. Do no use hand tools or tire irons in order to change tires. This may damage the tire bead or wheel rim.

Clean the rim bead seats with a wire brush or coarse steel wool in order to remove lubricants, old rubber and light rust. Before mounting or dismounting a tire, lubricate the bead area with an approved tire lubricant such as GM P/N 9985555 (50 percent lubricant/50 percent water) or the equivalent.

After mounting, inflate the tire until the beads are seated, but never exceed 275 kPa (40 psi) to seat the beads.

Caution: To avoid serious personal injury, do not stand over tire when inflating. The bead may break when bead snaps over safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate the beads and reinflate. Overinflation may cause the bead to break and cause serious personal injury.

Install the valve core and adjust to the proper pressure. Verify that the locating ring of the tire shows around the rim flanges on both sides.