Page 42 of 280

HEATER ONLY SYSTEM
(IF EQUIPPED)1. Fan speed adjustment:
Controls the volume of air
circulated in the vehicle.
2. Temperature selection:
Controls the temperature of the
airflow in the vehicle.
3. Air flow selections: Controls the direction of the airflow in the
vehicle. See the following for a brief description on each control.
: Distributes outside air through the instrument panel vents.
OFF: Outside air is shut out and the fan will not operate.
:Distributes outside air through the instrument panel vents and the
floor vents.
: Distributes outside air through the floor vents.
:Distributes outside air through the windshield defroster vents and
floor vents.
: Distributes outside air through the windshield defroster vents.
Operating tips
• To reduce fog build up on the windshield during humid weather, place
the air flow selector in the
position.
• To reduce humidity build up inside the vehicle during cold or warm
weather, do not drive with the air flow selector in the OFF position.
• Do not put objects under the front seats that will interfere with the air
flow to the rear seats.
• Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
To aid in side window defogging/demisting in cold weather:
1. Select
.
2. Adjust the temperature control to maintain comfort.
3. Set the fan speed to the highest setting.
4. Direct the outer instrument panel vents toward the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel.
2007 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Climate Controls
42 
     
        
        Page 81 of 280

The front outboard safety restraints in the vehicle are combination lap
and shoulder belts. The front passenger outboard safety belt has two
types of locking modes described below:
Vehicle sensitive mode
This is the normal retractor mode, which allows free shoulder belt length
adjustment to your movements and locking in response to vehicle
movement. For example, if the driver brakes suddenly or turns a corner
sharply, or the vehicle receives an impact of approximately 5 mph (8
km/h) or more, the combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Automatic locking mode (outboard front passenger seating
position only) for use with child safety seats
In this mode, the shoulder belt is automatically pre-locked. The belt will
still retract to remove any slack in the shoulder belt.
The automatic locking mode is not available on the driver safety belt.
When to use the automatic locking mode
•Any time a child safety seat is installed in a passenger front seat.
Refer to Safety Restraints for Children orSafety Seats for Children
later in this chapter.
How to use the automatic locking mode (Outboard front passenger
seating position only) for use with child safety seats
• Buckle the combination lap and
shoulder belt.
2007 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
81 
     
        
        Page 83 of 280

Safety belt pretensioner
Your vehicle is equipped with safety belt pretensioners at the driver and
front outboard passenger seating positions.
The safety belt pretensioner is a device which removes excess webbing
from the safety belt system. The safety belt pretensioner uses the same
crash sensor system as the front airbag supplemental restraint system
(SRS). When the safety belt pretensioner deploys, webbing from the lap
and shoulder belt is tightened. Refer to theSafety belt maintenance
section in this chapter.
WARNING: The driver and front passenger safety belt system
(including retractors, buckles and height adjusters) must be
replaced if the vehicle is involved in a collision that results in
deployment of front airbags and safety belt pretensioners.
Front safety belt height adjustment
Your vehicle has safety belt height adjustments for the driver and front
passenger. Adjust the height of the shoulder belt so the belt rests across
the middle of your shoulder.
• Regular Cab and four–door Cab
Plus 4
To lower the shoulder belt height, push the button and slide the height
adjuster down. To raise the height of the shoulder belt, slide the height
adjuster up. Pull down on the height adjuster to make sure it is locked in
place. WARNING: Position the safety belt height adjusters so that the
belt rests across the middle of your shoulder. Failure to adjust
the safety belt properly could reduce the effectiveness of the
seat belt and increase the risk of injury in a collision.
2007 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
83