
MANUAL MODE (M): This position, is available on
vehicles with the Allison Transmission
®
or Hydra-Matic
®
6-Speed transmission. It lets drivers select the range
of gears appropriate for current driving conditions.
If your vehicle has this feature, see Range Select Mode
(Allison Transmission
®
or Hydra-Matic
®
6-Speed
transmission) later in this section.
THIRD (3): This position is also used for normal driving.
It reduces vehicle speed more than DRIVE (D) without
using the brakes. You might choose THIRD (3)
instead of DRIVE (D) when driving on hilly, winding
roads, when towing a trailer, so there is less shifting
between gears and when going down a steep hill.
SECOND (2): This position reduces vehicle speed
even more than THIRD (3) without using your brakes.
You can use SECOND (2) on hills. It can help
control your speed as you go down steep mountain
roads, but then you would also want to use the brakes
off and on.
If you manually select SECOND (2) in an automatic
transmission, the transmission will start in second gear.
You can use this feature for reducing the speed of
the rear wheels when you are trying to start your vehicle
from a stop on slippery road surfaces.
FIRST (1): For the Hydra-Matic
®
4-Speed transmission
this position reduces vehicle speed even more than
SECOND (2) without using the brakes. You can use it
on very steep hills, or in deep snow or mud. If the
shift lever is put in FIRST (1) while the vehicle is moving
forward, the transmission does not shift into first gear
until the vehicle is going slowly enough.
For an Allison Transmission
®
or Hydra-Matic
®
6-Speed
transmission, this position reduces vehicle speed
without using your brakes. You can use it for
major/severe downgrades and off-road driving where
the vehicle would otherwise accelerate due to steepness
of grade. When you shift to FIRST (1) it provides the
lowest gear appropriate to your current road speed and
continues to downshift as the vehicle slows, eventually
downshifting to FIRST (1) gear.
Notice: Spinning the tires or holding the vehicle
in one place on a hill using only the accelerator
pedal may damage the transmission. The repair will
not be covered by your warranty. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes to hold the vehicle in place.
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Summary of Contents for 2008 Tahoe
Page 98: ... NOTES 1 94 ...
Page 174: ... NOTES 2 76 ...
Page 177: ... NOTES 3 3 ...
Page 178: ...Instrument Panel Overview United States version shown Canada similar 3 4 ...
Page 364: ... NOTES 4 64 ...
Page 528: ... NOTES 7 18 ...