Page 121 of 465

ca beeping tone is emitted when the sensors
detect obstacles within 1.8 m (6 ft) of the
front bumper.
The rear sonar system:
cis active when the ignition is in the ON
position and the shift selector lever is in R
(Reverse) .
ca beeping tone is emitted when the sensors
detect obstacles within 1.8 m (6 ft) of the
rear bumper.
The front and rear sonar system can be disabled
by pushing the OFF switch. When the system is
disabled, the indicator light on the switch will
illuminate. Push the switch again to enable the
system. The indicator light will go off.
The system will automatically reset the next time
the ignition switch is turned ON.
See “Front and rear sonar system” in the “Starting
and driving” section.Tow mode should be used when pulling a heavy
trailer or hauling a heavy load. Driving the vehicle
in the tow mode with no trailer/load or light
trailer/light load will not cause any damage. How-
ever, fuel economy maybe reduced and the
transmission/engine driving characteristics may
feel unusual.
Press the tow mode switch to activate tow mode.
The indicator light on the tow mode switch illumi-
nates when tow mode is selected. Press the tow
mode switch again to turn tow mode OFF.
Tow mode is automatically canceled when the
key is turned OFF.For additional information, refer to “Tow mode” in
the “Technical and consumer information” sec-
tion later in this manual.
LIC0594
TOW MODE SWITCH (if so equipped)
Instruments and controls2-39
ZREVIEW COPYÐ2009 Armada(wzw)
Owners ManualÐUSA_English(nna)
02/26/08Ðdebbie
X
ProCarManuals.com
Page 354 of 465

cThe system is designed as an aid to the
driver in detecting large stationary ob-
jects to help avoid damaging the ve-
hicle. The system will not detect small
objects below the bumper, and may not
detect objects close to the bumper or
on the ground.
cIf your vehicle sustains damage to the
rear bumper fascia, leaving it mis-
aligned or bent, the sensing zone may
be altered causing inaccurate measure-
ment of obstacles or false alarms.
The Rear Sonar System (RSS) sounds a tone to
warn the driver of obstacles near the rear bumper
when the shift selector is in R (Reverse) . The
system may not detect objects at speeds above
3 mph (5 km/h) and may not detect certain angu-
lar or moving objects.
The RSS detects obstacles up to 6 ft (1.8 m)
from the rear bumper with a decreased coverage
area at the outer corners of the bumper, (refer to
the illustration for approximate zone coverage
areas) . As you move closer to the obstacle, the
rate of the tone increases. When the obstacle is
less than 10 in (25.0 cm) away, the tone will
sound continuously. If the RSS detects a station-
ary or receding object further than 10 in
(25.0 cm) from the side of the vehicle, the tonewill sound for only 3 seconds. Once the system
detects an object approaching, the tone will
sound again.
The RSS automatically turns on when the shift
selector lever is placed in R (Reverse) and the
ignition is ON. The front and rear sonar system off
switch on the instrument panel allows the driver
to turn the RSS on and off. To turn the RSS off,
the ignition must be ON, and the shift selector
lever in R (Reverse) . An indicator light on the
switch will illuminate when the system is turned
off. If the indicator light illuminates when the RSS
is not turned off, it may indicate a malfunction in
the RSS.
Keep the RSS sensors (located on the rear
bumper fascia) free from snow, ice and large
accumulations of dirt (do not clean the sensors
with sharp objects) . If the sensors are covered, it
will affect the accuracy of the RSS.
WARNING
cAlways look around before proceeding.
The FSS is not a substitute for proper
driving procedures.
cRead and understand the limitations of
the front sonar system as contained in
this section. Inclement weather may af-
fect the function of the FSS, this may
include reduced performance or a false
activation.
cThis system is not designed to prevent
contact with small or moving objects.
LSD0202
FRONT SONAR SYSTEM (if so
equipped)
5-32Starting and driving
ZREVIEW COPYÐ2009 Armada(wzw)
Owners ManualÐUSA_English(nna)
02/26/08Ðdebbie
X
ProCarManuals.com
Page 355 of 465

cThe system is designed as an aid to the
driver in detecting large stationary ob-
jects to help avoid damaging the ve-
hicle. The system will not detect small
objects below the bumper, and may not
detect objects close to the bumper or
on the ground.
cIf your vehicle sustains damage to the
front bumper fascia, leaving it mis-
aligned or bent, the sensing zone may
be altered causing inaccurate measure-
ment of obstacles or false alarms.
The Front Sonar System (FSS) sounds a tone to
warn the driver of obstacles near the front
bumper when the shift selector is in a forward
gear. The system may not detect objects at
speeds above 3 mph (5 km/h) and may not detect
certain angular or moving objects.
The FSS detects obstacles up to 6 ft (1.8 m) from
the front bumper with a decreased coverage area
at the outer corners of the bumper, (refer to the
illustration for approximate zone coverage areas) .
As you move closer to the obstacle, the rate of the
tone increases. When the obstacle is less than
10 in (25.0 cm) away, the tone will sound con-
tinuously. If the FSS detects a stationary or re-
ceding object further than 10 in (25.0 cm) from
the side of the vehicle, the tone will sound for only3 seconds. Once the system detects an object
approaching, the tone will sound again.
The FSS automatically turns on when the shift
selector lever is placed in a forward gear and the
ignition is ON. The front and rear sonar system off
switch on the instrument panel allows the driver
to turn the FSS on and off. To turn the FSS off, the
ignition must be ON, and the shift selector lever in
D (Drive) . An indicator light on the switch will
illuminate when the system is turned off. If the
indicator light illuminates when the FSS is not
turned off, it may indicate a malfunction in the
FSS.
Keep the FSS sensors (located on the front
bumper fascia) free from snow, ice and large
accumulations of dirt (do not clean the sensors
with sharp objects) . If the sensors are covered, it
will affect the accuracy of the FSS.FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply de-
icer through the key hole. If the lock becomes
frozen, heat the key before inserting it into the key
hole or use the remote keyless entry keyfob (if so
equipped) .
ANTI-FREEZE
In the winter when it is anticipated that the tem-
perature will drop below 32°F (0°C) , check the
anti-freeze to assure proper winter protection.
For details, see “Engine cooling system” in the
“Maintenance and do-it-yourself” section of this
manual.
BATTERY
If the battery is not fully charged during extremely
cold weather conditions, the battery fluid may
freeze and damage the battery. To maintain maxi-
mum efficiency, the battery should be checked
regularly. For details, see “Battery” in the “Main-
tenance and do-it-yourself” section of this
manual.
COLD WEATHER DRIVING
Starting and driving5-33
ZREVIEW COPYÐ2009 Armada(wzw)
Owners ManualÐUSA_English(nna)
02/26/08Ðdebbie
X
ProCarManuals.com