1
19
9
F
Fo
ou
urr--W
Wh
he
ee
ell D
Drriiv
ve
e
T
Trra
an
nssffe
err C
Ca
asse
e B
Bu
utttto
on
nss
Your vehicle’s transfer case buttons
allow you to shift into and out of the
various four-wheel drive modes.
The switches, located above the center
console, include:
4
4
S
((FFo
ou
urr--W
Wh
he
ee
ell H
Hiig
gh
h)):: Used
for driving in most street and
highway situations.
4
4
S
((FFo
ou
urr--W
Wh
he
ee
ell--H
Hiig
gh
h LLo
occk
k)):: Used
when extra traction is needed in most
off-road situations.
4
4
T
((FFo
ou
urr--W
Wh
he
ee
ell--LLo
ow
w LLo
occk
k)):: Used in
extreme off-road conditions.
When shifting between Four-Wheel
High and Four-Wheel-High Lock, you
must be traveling less than 75 mph
(120 km/h). To shift, press the desired
button. The indicator light will flash
while shifting. The light will continue
to flash if your speed is above 75 mph
(120 km/h), indicating the shift has
not occurred. The light will remain lit
when the shift is complete. Neutral is
used only when towing the vehicle.
The Tire Pressure Monitor alerts you
when a significant reduction in
pressure occurs in one or more of
your vehicle’s tires by illuminating the
(low tire pressure) warning light
on the instrument panel. TPM sensors
are mounted onto each tire and wheel
assembly on your vehicle excluding
the spare tire. The low tire pressure
warning light will remain on until you
correct the tire pressure.
A tire pressure message may also
appear on the DIC.
C
Co
orrrre
eccttiin
ng
g tth
he
e T
Tiirre
e P
Prre
essssu
urre
e
When the low tire pressure warning
light illuminates, you must fill the
tire to the proper tire inflation
pressure (just as you must refuel the
vehicle when the low fuel warning
light illuminates). The Tire and Loading
Information label shows the correct
inflation pressure for the tires when
they’re cold. “Cold” means your
vehicle has been sitting for at least
three hours or driven no more than
one mile.
You can temporarily clear the DIC
message by acknowledging it with
your DIC controls. However, at the
next vehicle start-up, the DIC message
will reappear if the tire pressure has
not been corrected.
During cooler conditions, the low tire
pressure warning light may appear
when the vehicle is first started and
then turn off as you start to drive
the vehicle. This could be an early
indicator that your tire pressures are
getting low and need to be inflated to
the proper pressure.
T
Tiirre
e P
Prre
essssu
urre
e M
Mo
on
niitto
orr
SSe
ee
e tth
he
e SSe
errvviicce
e a
an
nd
d A
Ap
pp
pe
ea
arra
an
ncce
e C
Ca
arre
e sse
eccttiio
on
n o
off
yyo
ou
urr O
Ow
wn
ne
err M
Ma
an
nu
ua
all..
N
No
otte
e:: The Tire Pressure Monitor can
alert you about low tire pressure, but
it doesn’t replace normal monthly
tire maintenance.
112106_09a_Hummer_H3_GTK_051408.qxd:H3 2007 A 5/14/08 10:02 AM Page 19
