Shift Light; Locking Rear Axle - GMC 1996 Sonoma Owner's Manual

Shift Light
SHIFT
If you
have a manual
transmission, you have a
SHIFT light. This light will
show you when to shift to
the next higher gear for
best
fuel
economy.
When this light comes on, you can shift to the next
higher gear if weather, road and traffic conditions let
you. For the best fuel economy, accelerate slowly and
shift when the light comes on.
While
you accelerate, it is normal for the light to go
on and off if you quickly change the position of the
accelerator. Ignore the SHIFT light when you downshift.
If you skip more than one gear when you
downshift, you could lose control of your vehicle.
And you could injure yourself or others. Don't shift
down more than one gear when you downshift.
If your vehicle has four-wheel drive and is equipped
with a manual transmission, disregard the SHIFT light
when the transfer case is in 4LO.
Locking Rear Axle
If you have this feature, your rear axle can give you
additional traction on snow, mud, ice, sand or gravel. It
works like a standard axle most of the time, but when
one of the rear wheels has no traction and the other does,
the locking feature will allow the wheel with traction to
move the vehicle.
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