2017 CADILLAC CT6 air conditioning

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
CLIMATE CONTROLS 183
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.
. Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
. Use of non-GM approved hood
deflectors can adversely affect the
performance of the system. Check
with your dealer before adding
equipment to the outside of the
vehicle.
. Do not attach any devices to the
air vent slats. This restricts airflow
and may cause damage to the air
vents.Maintenance
Passenger Compartment
Air Filter
The filter reduces 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 0311.
See your dealer regarding replacement
of the filter.
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.
During service, all refrigerants should
be reclaimed with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to the
environment and may also create
unsafe conditions based on inhalation,
combustion, frostbite, or other
health-based concerns.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
260 VEHICLE CARE
If No Steam Is Coming from the
Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen or
heard, the problem may not be too
serious. Sometimes the engine can get
a little too hot when the vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the overheated
area or the engine coolant
temperature warning light no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly for about 10 minutes. Keep a safe
distance from the vehicle in front.
If the warning does not come back on,
continue to drive normally and have
the cooling system checked for proper
fill and function.
If the warning continues, pull over,
stop, and park the vehicle right away.
If there is no sign of steam, idle the
engine for three minutes while parked.
If the warning is still displayed, turn
off the engine until it cools down.
Washer Fluid
What to Use
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an area
where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol
on it. Add washer fluid until the tank
is full. See
Engine Compartment
Overview 0247 for reservoir location.
Caution
.
Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
(Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
322 TECHNICAL DATA
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants
0 318 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Cooling System –Engine
3.0L V6 Twin Turbo Engine 10.4 L 11.0 qt
3.0L V6 Twin Turbo Engine with Rear A/C 12.2 L 12.9 qt
3.0L V6 Twin Turbo Engine with Rear A/C and Auxiliary
Radiator 13.1 L 13.8 qt
3.6L V6 Engine 9.8 L 10.4 qt
3.6L V6 Engine with Rear A/C 11.4 L 12.0 qt
Cooling System –Twin Turbo
3.0L V6 Engine Intercoolers 3.2 L 3.4 qt
Engine Oil with Filter 5.7 L 6.0 qt
Fuel Tank 72.7 L 19.2 gal

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
INDEX 327
IndexA
Accessories and Modifications . . . . . 245
Accessory Power . . . . . . . . . . . . . . . . . . . . 198
Adaptive Cruise Control . . . . . . . . . . . . 213
Add-On Electrical Equipment . . . . . . 243
AdjustmentsLumbar, Front Seats . . . . . . . . . . . . . . . . 58
Lumbar, Rear Seats . . . . . . . . . . . . . . . . . 65
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 59
Air Cleaner/Filter, Engine . . . . . . . . . . 254
Air Conditioning . . . . . . . . . . . . . . .171, 178
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . . . . . 183
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
How Does an Airbag Restrain? . . . . . 78
Passenger Sensing System . . . . . . . . . 79
What Makes an Airbag Inflate? . . . . 78
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 78
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Where Are the Airbags? . . . . . . . . . . . . 75
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Passenger Status Indicator . . . . . . . 126 Airbags (cont'd)
Readiness Light . . . . . . . . . . . . . . . . . . . 126
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
System Check . . . . . . . . . . . . . . . . . . . . . . . 74
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 42
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . 236
Side Blind Zone (SBZA) . . . . . . . . . . 236
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 277
All-Wheel Drive . . . . . . . . . . . . . . . .204, 264
Antilock Brake System (ABS) . . . . . . 205 Warning Light . . . . . . . . . . . . . . . . . . . . 130
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Armrest Storage . . . . . . . . . . . . . . . . . . . . . 104
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Assistance Systems for Driving . . . . 228
Assistance Systems for Parking
and Backing . . . . . . . . . . . . . . . . . . . . . . . 222
Auto Stop Mode . . . . . . . . . . . . . . . . . . . . 134
Automatic
Climate Control System . . . . . 171, 178
Dimming Mirrors . . . . . . . . . . . . . . . . . . . 46
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Forward Braking . . . . . . . . . . . . . . . . . . 230