Starter Switch Check - GMC Yukon XL Denali Owner's Manual

out along the axle tubes and has
not drained back to the sump area.
Therefore, a reading taken
five minutes after the vehicle has
been driven will appear to have a
lower fluid level than a vehicle that
has been stationary for an hour or
two. Remember that the rear axle
assembly must be supported to get
a true reading.
How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level
surface.
For Two-Wheel-Drive vehicles,
the proper level is from 15 mm to
40 mm (0.6 in to 1.6 in) below the
bottom of the filler plug hole,
located on the rear axle. Add
only enough fluid to reach the
proper level.
For All-Wheel-Drive vehicles, the
proper level is from 1.0 mm to
19.0 mm (0.04 in to 0.75 in)
below the bottom of the filler
plug hole, located on the rear
axle. Add only enough fluid to
reach the proper level.
What to Use
Refer to Recommended Fluids and
Lubricants on page 11 12 to
determine what kind of lubricant
to use.
Vehicle Care

Starter Switch Check

WARNING
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be
sure there is enough room
around the vehicle.
2. Firmly apply both the parking
brake and the regular brake.
See Parking Brake on
page 9 34.
Do not use the accelerator
pedal, and be ready to turn off
the engine immediately if it
starts.
3. Try to start the engine in each
gear. The vehicle should start
only in P (Park) or N (Neutral).
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