Chevrolet Vehicle 3500HD

Reach behind the rear bumper and locate the bulb

Turn the bulb socket counterclockwise

Pull the bulb straight out of the socket

Reinstall the bulb by reversing the removal steps

Is the new bulb functioning properly?

Ensure the vehicle is on a level surface

Is coolant visible in the coolant surge tank?

Is the coolant inside the surge tank boiling?

Wait until the coolant cools down if it is boiling

Is the coolant level at or above the indicated mark?

Is there a potential leak in the cooling system?

Pull up on the edge of the driver side floor liner insert to unlock each button clip and remove

Installation of Floor Liner Insert

Line up the floor liner insert button clips over the liner retainers

Snap the floor liner insert into position

Is the floor liner insert properly secured in place using all button clips?

Does the floor liner insert interfere with the pedals?

Ensure the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi)

Locate the Tire and Loading Information label on the vehicle

Remove valve caps from the following tires

Measure the tire pressure for the Front Left Tire

Measure the tire pressure for the Front Right Tire

Measure the tire pressure for the Rear Left Tire

Measure the tire pressure for the Rear Right Tire

When to Change Engine Air Filter

Select the current DIC message regarding the engine air filter

Replace the engine air filter if necessary based on DIC message

Was the engine air filter replaced?

Reset Engine Air Filter Life System

Display the Air Filter Life on the DIC

Press T on the steering wheel or the trip odometer reset stem to move to the Reset/Disable display area