Manual Operation Override
This system offers a full complement of manual over-
ride features. The AUTO symbol in the front ATC display
will be turned off when the system is being used in the
manual mode.
CLIMATE VOICE RECOGNITION —
IF EQUIPPED
Adjust vehicle temperatures hands-free and keep every-
one comfortable while you keep moving ahead.
Push the VR button on the steering wheel. After the
beep, say one of the following commands:
•
“
Set driver temperature to
70
degrees
”
•
“
Set passenger temperature to
70
degrees
”
Did you know:
Voice Command for Climate may only be
used to adjust the interior temperature of your vehicle.
Voice Command will not work to adjust the heated
seats or steering wheel if equipped.
OPERATING TIPS
Refer to the chart at the end of this section for sug-
gested control settings for various weather conditions.
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corro-
sion protection and to protect against engine overheat-
ing. OAT coolant (conforming to MS.90032) is
recommended.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is func-
tioning properly and the proper amount, type, and con-
centration of coolant is used. Use of the Air
Recirculation mode during Winter months is not recom-
mended, because it may cause window fogging.
Vacation/Storage
For information on maintaining the Climate Control sys-
tem when the vehicle is being stored for an extended
period of time, see
Window Fogging
Vehicle windows tend to fog on the inside in mild, rainy,
and/or humid weather. To clear the windows, select
Defrost or Mix mode and increase the front blower
speed. Do not use the Recirculation mode without A/C
for long periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions, such as leaves.
Leaves collected in the air intake may reduce airflow,
and if they enter the plenum, they could plug the water
drains. In Winter months, make sure the air intake is
clear of ice, slush, and snow.
Cabin Air Filter
The Climate Control system filters out dust and pollen
from the air. Contact an authorized dealer to service
your cabin air filter, and to have it replaced when
needed.
Operating Tips Chart
WEATHER
CONTROL SETTINGS
Hot Weather And Vehicle
Interior Is Very Hot
Set the mode control to
(Panel Mode),
(A/C) on, and blower on
high. Roll down the win-
dows for a minute to
flush out the hot air.
Adjust the controls as
needed to achieve
comfort.
Warm Weather
Turn
(A/C) on and
set the mode control to
(Panel Mode).
Cool Sunny
Operate in
(Bi-Level
Mode).
Cool & Humid Conditions
Set the mode control to
(Floor Mode) and
turn
(A/C) on to
keep windows clear.
Cold Weather
Set the mode control to
(Floor Mode). If wind-
shield fogging starts to
occur, move the control
to
(Mix Mode).
GETTING TO KNOW YOUR VEHICLE
55
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Summary of Contents for CHASSIS CAB 2024
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