2015 CADILLAC XTS SEDAN air filter

Black plate (1,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Climate Controls 8-1
Climate Controls
Climate Control Systems
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-1
Rear Climate Control System . . . . . . . . . . . . . . . . . . . . . . 8-6
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-8
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Service . . . . . . . . . . . . . . . . . . . . . . . 8-9
Climate Control Systems
Dual Automatic Climate Control System
The climate control buttons and the touch screen are used to adjust the
heating, cooling, and ventilation.
Climate Control Buttons
1. Driver and Passenger Temperature Controls
2. Fan Control
3. OFF (Fan) 4. Driver and Passenger Heated
and Ventilated Seats (If
Equipped)
5. AUTO (Automatic Operation)
6. Defrost

Black plate (9,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Climate Controls 8-9
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.
SeeMaintenance Schedule on
page 11-4.
See your dealer regarding
replacement of the filter.
Service
This vehicle may have the new
environmentally friendly refrigerant,
R1234yf. This refrigerant has a
significantly reduced global warming
impact on the environment,
compared to the traditional
automotive refrigerant, R-134a. 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.

Black plate (1,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Cover . . . . . . . . . . . . . . . . 10-8
Engine Oil . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-11
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-13
Engine Air Cleaner/Filter . . . . 10-13
Cooling System . . . . . . . . . . . . 10-14
Engine Coolant . . . . . . . . . . . . . 10-16
Engine Overheating . . . . . . . . 10-19 Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-20
Power Steering Fluid (LF3 and LFX
with AWD) . . . . . . . . . . . . . . . . 10-21
Power Steering Fluid (LFX with FWD) . . . . . . . . . . . . . . . . 10-21
Washer Fluid . . . . . . . . . . . . . . . 10-22
Brakes . . . . . . . . . . . . . . . . . . . . . 10-22
Brake Fluid . . . . . . . . . . . . . . . . . 10-23
Battery . . . . . . . . . . . . . . . . . . . . . 10-24
All-Wheel Drive . . . . . . . . . . . . . 10-25
Starter Switch Check . . . . . . . 10-25
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-26
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-26
Wiper Blade Replacement . . . . . . . . . . . . . . 10-26
Windshield Replacement . . . 10-27
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-28
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-28
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-28
LED Lighting . . . . . . . . . . . . . . . 10-28
Back-Up Lamps . . . . . . . . . . . . 10-28
License Plate Lamp . . . . . . . . 10-29
Replacement Bulbs . . . . . . . . . 10-29
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-30
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-30
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-31
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-34
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-36
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-38
All-Season Tires . . . . . . . . . . . . 10-39
Winter Tires . . . . . . . . . . . . . . . . 10-39
Summer Tires . . . . . . . . . . . . . . 10-39
Tire Sidewall Labeling . . . . . . 10-40
Tire Designations . . . . . . . . . . . 10-42

Black plate (6,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
10-6 Vehicle Care
1.Engine Air Cleaner/Filter on
page 10-13.
2. Power Steering Fluid Reservoir (Under Engine Cover) (If
Equipped). See Power Steering
Fluid (LF3 and LFX with AWD)
on page 10-21 orPower
Steering Fluid (LFX with FWD)
on page 10-21.
3. Engine Oil Fill Cap. See Engine
Oil on page 10-9.
4. Engine Oil Dipstick (Out of View). See Engine Oil on
page 10-9. 5.
Engine Cover on page 10-8.
6. Engine Cooling Fans (Out of View). See Cooling System on
page 10-14.
7. Brake Fluid Reservoir. See Brakes on page 10-22.
8. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-16.
9. Battery on page 10-24 (Battery
Cover not Shown). 10. Remote Positive (+) Terminal
(Battery Cover not Shown).
SeeJump Starting on
page 10-75.
11. Engine Compartment Fuse
Block on page 10-31.
12. Remote Negative (−) Terminal (Out of View). See Jump
Starting on page 10-75.
13. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10-22.

Black plate (8,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
10-8 Vehicle Care
1.Engine Air Cleaner/Filter on
page 10-13.
2. Power Steering Fluid Reservoir (Under Engine Cover). See
Power Steering Fluid (LF3 and
LFX with AWD) on page 10-21
orPower Steering Fluid (LFX
with FWD) on page 10-21.
3. Engine Oil Fill Cap. See Engine
Oil on page 10-9.
4. Engine Oil Dipstick. See Engine
Oil on page 10-9.
5. Engine Cover on page 10-8.
6. Engine Cooling Fans (Out of View). See Cooling System on
page 10-14.
7. Charged Air Coolant Reservoir and Pressure Cap. See Engine
Coolant on page 10-16.
8. Brake Fluid Reservoir. See Brakes on page 10-22.
9. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-16. 10.
Battery on page 10-24 (Battery
Cover not Shown).
11. Remote Positive (+) Terminal (Battery Cover not Shown).
SeeJump Starting on
page 10-75.
12. Engine Compartment Fuse
Block on page 10-31.
13. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10-22.
14. Remote Negative (−) Terminal (Out of View). See Jump
Starting on page 10-75.Engine Cover
3.6L V6 Engine
1. Engine Oil Fill Cap
2. Engine Cover Bolt
3. Engine Cover

Black plate (13,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Vehicle Care 10-13
Automatic Transmission
Fluid
A transmission fluid leak is the only
reason for fluid loss. If a leak
occurs, take the vehicle to the
dealer and have it repaired as soon
as possible.
See your dealer to have the fluid
and filter changed at the intervals
listed in theMaintenance Schedule
on page 11-4.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview on
page 10-5.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
scheduled maintenance intervals.
See Maintenance Schedule on
page 11-4. If you are driving in
dusty/dirty conditions, inspect the
filter at each engine oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter,
remove the filter from the vehicle
and lightly shake it to release loose
dust and dirt. If the filter remains
covered with dirt, a new filter is
required. To inspect or replace the engine air
cleaner/filter:
3.6L V6 Engine
1. Remove the seven screws on top of the engine air cleaner/filter
housing.
2. Lift the filter cover housing away from the engine.
3. Pull out the filter.
4. Inspect or replace the engine air cleaner/filter.
5. Reverse Steps 1–3 to reinstall the filter cover housing.

Black plate (14,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
10-14 Vehicle Care
3.6L V6 Engine Twin Turbo
1. Screws
2. Secondary Air Hose
3. Lower Air Duct Clamp
4. Lower Electrical Connector
5. Upper Electrical Connector
6. Upper Air Duct Clamp
1. Disconnect the lower and upperoutlet ducts by loosening the
lower (3) and upper (6) air duct
clamps.
2. Disconnect the lower (4) and upper (5) electrical connectors
and wiring attachments from the
cover.
3. Remove the screws (1) on top of the cover.
4. Lift the filter cover housing away from the engine.
5. Pull out the filter.
6. Inspect or replace the engine air cleaner/filter.
7. Reverse Steps 1–5 to reinstall the filter cover housing.
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
{Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when you are driving.
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.

Black plate (3,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Service and Maintenance 11-3
{Warning
Performing maintenance work can
be dangerous and can cause
serious injury. Perform
maintenance work only if the
required information, proper tools,
and equipment are available.
If they are not, see your dealer to
have a trained technician do the
work. SeeDoing Your Own
Service Work on page 10-3.
Cadillac Premium
Care Maintenance
Your vehicle comes with the
Cadillac Premium Care
Maintenance. It is a maintenance
program that covers select
maintenance services during the
first 4 years or 80 000 km
(50,000 mi), whichever comes first.
Cadillac Premium Care
Maintenance covers routine
maintenance services, when
scheduled in accordance with the
owner manual, including:
.Oil changes based on the
vehicle's oil life monitor system.
.Tire rotation every 12 000 km
(7,500 mi).
.Engine air cleaner filter
replacement.
.Passenger compartment air filter
replacement.
.Multi‐point vehicle inspection
(MPVI) performed by a qualified
technician.
Cadillac requires that all Cadillac
Premium Care Maintenance
services be performed by a Cadillac
authorized service dealer.