Tire Dismounting and Mounting: Removal
Approved safety glasses and gloves should be worn when performing this procedure to reduce the chance of personal injury.
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment. Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to peel from the wheel.
Damage to either the tire bead or the wheel mounting holes can result from the use of improper wheel attachment or tire mounting procedures. It takes up to 70 seconds for all of the air to completely exhaust from a large tire. Failure to follow the proper procedures could cause the tire changer to put enough force on the tire to bend the wheel at the mounting surface. Such damage may result in vibration and/or shimmy, and under severe usage lead to wheel cracking.
- Raise and support the vehicle. Lifting and Jacking the Vehicle
- Remove the tire and wheel assembly. Tire and Wheel Removal and Installation
- Remove the valve core and release the air pressure.
- Deflate the tire completely.
- Use the tire changing machine to remove the tire from the wheel following the manufacturer specific directions for the tire changing machine being used.
- When separating the tire bead from the wheel, do not allow the bead breaker to contact the valve stem/TPM sensor as they will be damaged.
- Position the tire machine removal head to the outer tire bead so as it will operate without contacting the valve stem/TPM sensor.
- Using the tire changing machine, remove the outer tire bead from the wheel.
- Position the tire machine removal head to the outer tire bead so as it will operate without contacting the valve stem/TPM sensor.
- Using the tire changing machine, remove the inner tire bead from the wheel and remove the tire.
- If a tire sealant product was used/found within the tire, and the tire is repairable, use a mild dish soap, clean water and shop cloths to remove the sealant residue.
- If a confirmed GM approved tire sealant product has been used/found within the tire, use a mild dish soap, clean water and shop cloths to remove the sealant residue from the tire pressure indicator sensor.
- If a tire sealant product was used/found within the tire, and it cannot be confirmed that a GM approved product was used, replace the tire pressure indicator sensor. Tire Pressure Indicator Sensor Replacement
- Use medium coarseness steel wool to remove any rubber or corrosion from the wheel bead seats.
- Inspect the tire and wheel for any damage, replace as necessary.
Rim-clamp touchless tire changers are recommended.
Failure to position valve stem in proper position while dismounting and mounting the tire may result in the TPM sensor to become damaged.
Approved safety glasses and gloves should be worn when performing this procedure to reduce the chance of personal injury.
Refer to information on the tire sealant Material Safety Data Sheet and follow guidelines for handling and disposal.