Wheels and Tires: Service and Repair
Removal1. CAUTION: Do not use heat to loosen a seized wheel nut. Heat can damage the wheel and wheel bearings.
NOTE: To avoid damage or scratching to the center cap, place facing up when removed.
Loosen the wheel nuts.
1 Remove the center cap.
2 With the weight of the vehicle on the wheels, loosen the wheel nuts.
2. WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the RH kick panel area. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.
Raise and support the vehicle.
3. Remove the wheel and tire assembly.
1 Remove the wheel nuts.
2 Remove the wheel and tire assembly using a side-to-side rocking motion.
Installation
All vehicles
1. WARNING: When a wheel is installed, always remove any corrosion, dirt or foreign material present on the mounting surfaces of the wheel or the surface of the wheel hub, brake drum or brake disc that contacts the wheel. Installing wheels without correct metal-to-metal contact at the wheel mounting surfaces can cause the wheel nuts to loosen and the wheel to come off while the vehicle is in motion, causing loss of control.
WARNING: Retighten at 800 km (500 miles) after any wheel change or any time the wheel nuts are loosened.
WARNING: Failure to retighten wheel nuts at the mileage specified could allow wheels to come off while the vehicle is in motion, possibly causing loss of vehicle control and collision.
Clean the wheel hub mounting surface.
2. NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch
Install the tire and wheel assembly.
- Position the tire and wheel assembly.
- Install the wheel nuts, hand-tight, then lower the vehicle.
Vehicles with 12 mm wheel bolts
3. CAUTION: Failure to tighten the wheel nuts in a star pattern can result in high brake disc runout, which will speed up the development of brake roughness, shudder and vibration.
Tighten the wheel nuts in sequence.
Vehicles with 14 mm wheel bolts
4. CAUTION: Failure to tighten the wheel nuts in a star pattern can result in high brake disc runout, which will speed up the development of brake roughness, shudder and vibration.
Tighten the wheel nuts in sequence.
All vehicles
5. Install the center cap.