Inter - Axle Differential Lock Control - GMC T-Series 1999 Owner's Manual

Inter Axle Differential Lock Control
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(If Equipped)
If your vehicle has this feature, the control is located at
the lower right corner of the instrument panel.
If you're approaching a slippery surface where it looks
like one or even all of the wheels may start to slip, you
can use this control. It locks your rear differentials so
that power is transmitted equally to both rear axles.
Let up on the accelerator before you turn on your
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inter axle differential lock. When you turn on this
control, the DIFF LOCK indicator on the instrument
panel will light.
NOTICE:
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Activating the inter axle differential lock when
the rear wheels are actually spinning freely, as
they might on ice or snow, can cause you to lose
control of the vehicle. It can also damage the
axles. Turn on this control only when the wheels
are not spinning freely.
Hand Throttle Control (If Equipped)
The hand throttle is to the left of the steering column at
the bottom of the instrument panel, or bracket mounted
below the fuse block.
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