Hvac Controls - freightliner M2 Plus 2023 Manual

Cab Features
05/19/2020
Fig. 5.5, Foot Well Light Switch
Press the lamp cover to turn it off or on.
Overhead Console Lamps
The overhead console lamps consist of two lamps
with the form and function of the cab dome lamps,
two reading lamps, and an amber lamp that provides
ambient light for the center dash area.
The overhead console lights can be individually
turned off and on by pressing on the lamp cover.
Dash Lights
The dash lighting adjusts automatically based on
ambient lighting.
The brightness can be adjusted in either the
'Settings' menu or with an optional dash light switch
as shown in Fig. 5.6.
05/19/2020
Fig. 5.6, Dash Light Switch
When using the dash light switch, the panel lights
brighten and dim in 10% increments, depending on
whether the upper half or the lower half of the switch
is pressed. When the panel lights are turned on with
5.3
FOOT
WELL
DASH
LIGHT
the switch they default to the intensity that was last
set.
Reading Lamps
An extended or crew cab will have two to three
reading lights above the back seat area. Press the
switch on the rear of the light to turn it off or on.
Premium Lighting
Some vehicles are equipped with premium lighting
which includes theater lighting. Theater lighting refers
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to the gradual illumination and dimming of the
overhead and reading lamps when they are turned
on and off.

HVAC Controls

Controls for the heating, ventilation, and air-
conditioning system (HVAC) consist of a fan speed
switch, an air vent selection switch, and a
temperature control switch. On vehicles with air
conditioning, the panel also contains a telltale LED
and an air recirculation button as shown in
1
02/16/2022
1. Fan Speed
2. Vent Selection
Fig. 5.7, HVAC Climate Control Panel, Standard
Fan Speed Switch
The fan speed switch controls the speed of the fan
that forces fresh or recirculated air through the air
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In the default mode fresh, or outside, air circulates
through the heating and air conditioning system. If
equipped with air conditioning, recirculation mode is
available. This limits the amount of outside air
entering the cab.
The fan has eight speeds.
Fig.
2 3
4
3. Temperature Control
4. Air Recirculation
5.7.
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