GM Service Manual Online
For 1990-2009 cars only

Use the following pictures and instructions to remove the flat tire and raise the vehicle.


Object Number: 1308345  Size: B3

The tools you will be using include the jack (A), the wheel blocks (B), the extension tool (C), the jack handle extensions (D), and the wheel wrench (E).

  1. Do a safety check before proceeding. See Changing a Flat Tire for more information.

  2. Object Number: 1341534  Size: B3
  3. Remove the center cap by placing the chisel end of the wheel wrench (E) into one of the slots on the wheel and gently prying the cap out.

  4. Object Number: 1341544  Size: B3
  5. Use the wheel wrench to loosen all the wheel nuts by turning it counterclockwise. Do not remove the wheel nuts yet.
  6. Caution: Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack, you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack.

    Caution: Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle.

    Front Position


    Object Number: 1307710  Size: B3
  7. Position the jack (A) under the vehicle as shown for the front or rear locations.
  8. Front Position


    Object Number: 1341573  Size: B3
  9. If the flat tire is on the front of the vehicle, position the jack to the rear of the front tire in the pocket off of the frame.
  10. Rear Position


    Object Number: 1450609  Size: B3
  11. If the flat tire is on the rear, position the jack under the rear axle and get as close as possible to the shock absorber.
  12. Make sure the jack head is positioned so that the rear axle is resting securely between the grooves that are on the jack head.
  13. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to fit under the wheel well.

  14. Object Number: 806071  Size: A3

    Remove all the wheel nuts and the flat tire.

    Caution: Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See Changing a Flat Tire .


    Object Number: 811105  Size: A2

    Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel.

  15. Install the spare tire.
  16. Caution: Never use oil or grease on bolts or nuts because the nuts might come loose. The vehicle's wheel could fall off, causing a crash.

  17. Put the wheel nuts back on with the rounded end of the nuts toward the wheel. Tighten each wheel nut by hand. Then use the wheel wrench to tighten the nuts until the wheel is held against the hub.
  18. Front Position


    Object Number: 1307708  Size: B3

    Rear Position


    Object Number: 1450625  Size: B3
  19. Turn the wheel wrench counterclockwise to lower the vehicle. Lower the jack completely.
  20. Caution: Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to an accident. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new Isuzu original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to the proper torque specification. See Capacities and Specifications for wheel nut torque specification.

    Notice: Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification. See Capacities and Specifications for the wheel nut torque specification.


    Object Number: 808015  Size: A2

    Tighten the wheel nuts firmly in a crisscross sequence as shown by turning the wheel wrench clockwise.

When you reinstall the regular wheel and tire, you must also reinstall the center cap. Place the cap on the wheel and tap it into place until it seats flush with the wheel. The cap only goes on one way. Be sure to line up the tab on the center cap with the indentation on the wheel.