GMC Vehicle Sierra 2500 HD

Warning: This procedure requires trained personnel with PPE!

Tires rotated according to the maintenance schedule?

If unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels.

Enter the tire inflation pressure

If the full-size spare tire is part of the tire rotation, make sure the tire rotated into the spare position is stored securely.

Warning: This maintenance check requires trained personnel!

If oil or filter change is needed, reset oil life system.

If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000  mi since the last service.

Is the REPLACE AT NEXT OIL CHANGE message displayed?

Is the REPLACE ENGINE AIR FILTER SOON message displayed?

We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month.

• The indicators at three or more places around the tire can be seen.

• There is cord or fabric showing through the tire's rubber.

• The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric.

• The tire has a bump, bulge, or split.

• The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage

Tires need the correct amount of air pressure to operate effectively.

Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in:

• Tire overloading and overheating, which could lead to a blowout

• Reduced fuel economy for internal combustion engine vehicles

• Reduced range for electric vehicles

Overinflated tires, or tires that have too much air, can result in:

Warning: For trained personnel only

Steering, suspension, and chassis components visually inspected for damaged, loose, or missing parts or signs of wear

Power steering inspected for proper attachment, connections, binding, cracks, chafing, etc.

Constant velocity joint boots and axle seals checked for leaks

Upper and lower control arm ball joints lubricated

Tie rod ball joints, idler arm pivot shaft bearings, idler arm socket, and pitman arm socket lubricated

Caution: Lubrication of applicable suspension points should not be done unless the temperature is −12 °C (10 °F) or higher, or damage could result.