GMC 1994 Yukon Owner's Manual page 79

0
0
0
-
Going about
35 mph (56 k d h ) or more, push the accelerator all
the way down.
You'll shift down to the next gear and have more power.
@
should not be used when towing a trailer, carrying a heavy load,
driving
on
steep hills, or for off road driving. Select
"D"
(third gear)
when operating the vehicle under any of these conditions.
D
(Third Gear)
This is like
@,
but you never go into Overdrive. You should use when
towing a trailer, carrying a heavy load, driving
on steep hills, or for
off-road driving.
2 (Second Gear)
This position gives you more power but lower fuel economy. You can
use "2" on hills. It can help control your speed as you go down steep
mountain roads, but then you would also want to use your brakes off
and on. If you manually select "2", the transmission will drive in
second gear. You may use this feature for reducing torque to the rear
wheels when you are trying to start your vehicle from a stop on
slippery road surfaces.
1 (First Gear)
This position gives
you
even more power (but lower fuel economy)
than "2." You can use it on very steep hills, or in deep snow or mud. If
the selector lever is put in "1
,"
the transmission won't shift into first
gear until the vehicle is going slowly enough.
NOTICE:
If your rear wheels can't rotate, don't try to drive. This might
happen if you were stuck in very deep sand or mud or were up
against a solid object. You could damage your transmission.
Also, if you stop when going uphill, don't hold your vehicle there
with only the accelerator pedal. This could overheat and damage
the transmission. Use your brakes or shift into
"P"
Park to hold
your vehicle in position on a hill.
2-23