Changing a Flat Tire
Danger: When working on the vehicle, shut down the engine, set the parking brake,and chock the tires. before working under the vehicle, always place jack stands under the frame rails to ensure the vehicle can not drop. Failure to follow these steps could result in serious personal injury or death.
Warning: Wheel lug nut torque is very high and the wheel/tire assemblies are very heavy. Changing a tire could result in back injury. If possible, call a qualified service facility to change a flat tire.
Important: If a flat tire occurs while driving, gradually decrease vehicle speed. Holding the steering wheel firmly, move to a safe place on the side of the road.
- Stop the vehicle on a level surface, away from traffic.
- Apply the parking brake, place the transmission in neutral (N), and shut down the engine.
- Turn on the hazard warning lights.
- Block the wheel diagonally opposite the wheel being changed.
- Remove the spare wheel, jack, jack handle, and lug wrench from storage.
- place the jack on a solid surface. Insert the jack handle
and pump the handle slightly. Do not raise the wheel off of the
ground yet. Loosen the wheel lug nuts, but do not remove them.
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Jack LocationsFront Axle
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Jack LocationsRear Axle
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Jack LocationsFront Bumper
Fig. 1, Jack placement
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- Raise the vehicle until the wheel is off of the ground. Remove the lug nuts and the wheel.
- Install the spare wheel and lug nuts. Make sure that the beveled sides of the nuts face inward, or, on hub-piloted wheels, make sure that the hub-pilot pad is centered at the top.
- In a star pattern, tighten the nuts evenly until snug. See of the S2 Workshop Manual for wheel tightening patterns and torque specifications. Lower the vehicle until the wheel touches the ground. Tighten the nuts.
- Finish lowering the vehicle to the ground, then remove the jack.
- Remove the block, then stow the jack, jack handle, and lug wrench.
- After operating the vehicle for 50 to 100 miles (80 to 161 km), retighten the wheel nuts to the specified torque values.
Warning: This vehicle is very heavy. Jacking this vehicle should be done with extreme caution. The vehicle could slip, causing personal injury or death.
Important: The jacking point for the front wheels is on the front axle beam and other locations shown in Fig.. The jacking point for rear wheels is on the rear axle and at the locations on the rear suspension H-frame, shown in Fig..
Only use the front bumper locations if the vehicle is equipped with a jackable bumper. When jacking the front bumper, the jacking point(s) must be centered and within the bottom surface of the bumper support as shown in Fig.. Do not position the jack under the dropped frame rails in the center section of the vehicle.
Important: The dual rear wheels are attached using two-element lug nuts. The larger nut retains the outer dual. The inner square stud retains the inner dual. Remove and install these nuts separately. The rear dual outer lug nut must be loosened to check and retighten the inner nut.
Important: When a tire is changed, the vehicle should be taken to a mechanic as soon as possible, to have the lug nuts tightened properly with an impact air gun.