Air Vents; Passenger Compartment Air Filter - Buick Regal 2018 Owner's Manual

Air Vents

Use the slider knob on the air vent
louvers to change the amount and
direction of the airflow.
To close the outboard air vents,
move the slider knob to the full
outboard position.
To close the center air vents, move
the slide knob to the full inboard
position.
To close the rear passenger air
vents, move the slider knob to the
full inboard position.
Operation Tips
Clear away any ice, snow,
or leaves from air inlets at the
base of the windshield that could
block the flow of air into the
vehicle.
Clear snow off the hood to
improve visibility and help
decrease moisture drawn into
the vehicle.
Keep all outlets open whenever
possible for best system
performance.
Keep the path under all seats
clear of objects to help circulate
the air inside the vehicle more
effectively.
Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
Climate Controls
Maintenance
Passenger Compartment
Air Filter
The filter removes dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part
of routine scheduled maintenance.
See Maintenance Schedule 0 332
for replacement intervals. For more
information, see your dealer.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained
and certified technicians. The air
conditioning evaporator should
never be repaired or replaced by
one from a salvage vehicle.
It should only be replaced by a new
evaporator to ensure proper and
safe operation.
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