washer fluid CADILLAC CT6 2019 User Guide

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 299
1. Passenger Side EngineCompartment Fuse Block. See
Engine Compartment Fuse Block
0323.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 307.
3. Passenger Side Engine Air Cleaner/Filter. See Engine Air
Cleaner/Filter 0304.
4. Engine Oil Fill Cap. See Engine Oil
0 299.
5. Engine Oil Dipstick. See Engine
Oil 0299.
6. Engine Cooling Fan (Out of View). See Cooling System 0307.
7. Driver Side Engine Air Cleaner/ Filter. See Engine Air Cleaner/
Filter 0304.
8. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0367.
9. Brake Fluid Reservoir. See Brake
Fluid 0315. 10. Windshield Washer Fluid
Reservoir. See Washer Fluid
0 313.
11. Driver Side Engine Compartment Fuse Block. See Engine
Compartment Fuse Block 0323.
12. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0367.
Engine Oil
To ensure proper engine performance
and long life, careful attention must
be paid to engine oil. Following these
simple, but important steps will help
protect your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil” in
this section.
. Check the engine oil level regularly
and maintain the proper oil level.
See “Checking Engine Oil” and
“When to Add Engine Oil” later in
this section. .
Change the engine oil at the
appropriate time. See Engine Oil
Life System 0302.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially prior
to a long trip. The engine oil dipstick
handle is a loop. See Engine
Compartment Overview 0292 for the
location.
{Warning
The engine oil dipstick handle may
be hot; it could burn you. Use a
towel or glove to touch the dipstick
handle.
If a low oil Driver Information Center
(DIC) message displays, check the oil
level.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 313
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 0292 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.
(Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
314 VEHICLE CARE
Caution (Continued)
.Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could damage
the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can be heard all the time when the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will not
work well. That could lead to a
crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated, inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications. See
Capacities and
Specifications 0397.
Brake pads should always be replaced
as complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does
not return to normal height, or if
there is a rapid increase in pedal
travel. This could be a sign that brake
service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement parts.
If this is not done, the brakes may not
work properly. The braking
performance expected can change in
many other ways if the wrong
replacement brake parts are installed
or if parts are improperly installed.
Electric Brake Boost
If equipped, this vehicle may have an
electrically boosted power braking
system. The system works with the

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
372 VEHICLE CARE
Recreational Vehicle
Towing
Caution
Do not tow this vehicle with two
wheels on the ground, or vehicle
damage could occur. This damage
would not be covered by the vehicle
warranty.
The vehicle was neither designed nor
intended to be towed with any of its
wheels on the ground. If the vehicle
must be towed, see Towing the Vehicle
0 370.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and Lubricants
0392.
Washing the Vehicle
To preserve the vehicle's finish, wash
it often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they
can damage the vehicle's paint,
metal, or plastic parts. If damage
occurs, it would not be covered by
the vehicle warranty. Approved
cleaning products can be obtained
from your dealer. Follow all
manufacturer directions regarding
(Continued)
Caution (Continued)
correct product usage, necessary
safety precautions, and appropriate
disposal of any vehicle care
product.
Caution
Avoid using high-pressure washes
closer than 30 cm (12 in) to the
surface of the vehicle. Use of power
washers exceeding 8,274 kPa
(1,200 psi) can result in damage or
removal of paint and decals.
Caution
Do not power wash any component
under the hood that has this
e
symbol.
This could cause damage that
would not be covered by the vehicle
warranty.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
374 VEHICLE CARE
.Do not use cleaners that are not
intended for automotive use.
. Use a nonabrasive wax on the
vehicle after washing to protect
and extend the molding finish.
Cleaning Exterior Lamps/Lenses,
Emblems, Decals, and Stripes
Use only lukewarm or cold water, a
soft cloth, and a car washing soap to
clean exterior lamps, lenses, emblems,
decals, and stripes. Follow instructions
under "Washing the Vehicle"
previously in this section.
Lamp covers are made of plastic, and
some have a UV protective coating. Do
not clean or wipe them when dry.
Do not use any of the following on
lamp covers:
.Abrasive or caustic agents.
. Washer fluids and other cleaning
agents in higher concentrations
than suggested by the
manufacturer.
. Solvents, alcohols, fuels, or other
harsh cleaners.
. Ice scrapers or other hard items. .
Aftermarket appearance caps or
covers while the lamps are
illuminated, due to excessive heat
generated.
Caution
Failure to clean lamps properly can
cause damage to the lamp cover
that would not be covered by the
vehicle warranty.
Caution
Using wax on low gloss black finish
stripes can increase the gloss level
and create a non-uniform finish.
Clean low gloss stripes with soap
and water only.
Air Intakes
Clear debris from the air intakes
between the hood and windshield
when washing the vehicle.
Shutter System
The vehicle may have a shutter
system designed to help increase fuel
economy. Keep the shutter system
clean for proper operation.
Windshield and Wiper Blades
Clean the outside of the windshield
with glass cleaner.
Clean rubber blades using a lint-free
cloth or paper towel soaked with
windshield washer fluid or a mild
detergent. Wash the windshield
thoroughly when cleaning the blades.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 383
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil 0299.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0346.
. Inspect the tires for wear. See Tire
Inspection 0353.
. Check the windshield washer fluid
level. See Washer Fluid 0313.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the engine
oil life system may not indicate the
need for vehicle service for up to a
year. The engine oil and filter must be
changed at least once a year and the
oil life system must be reset. Your
trained dealer technician can perform
this work. If the engine oil life system is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since
the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System
0302.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years. This
service requires replacement of the
desiccant to help the longevity and
efficient operation of the air
conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation0353.
. Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil0299
and
Engine Oil Life System 0302. .
Inspect the engine air filter and
check the air filter life percentage.
If necessary, replace engine air
filter and reset the Engine Air
Filter Life System. See Engine Air
Cleaner/Filter 0304 and
Engine Air Filter Life System 0304.
. Check engine coolant level. See
Cooling System 0307.
. Check windshield washer fluid
level. See Washer Fluid 0313.
. Check tire inflation pressures. See
Tire Pressure 0346.
. Inspect tire wear. See Tire
Inspection 0353.
. Visually check for fluid leaks.
. Inspect brake system. See Exterior
Care 0372.
. Visually inspect steering,
suspension, and chassis
components for damage, including
cracks or tears in the rubber boots,
loose or missing parts, or signs of
wear at least once a year. See
Exterior Care 0372.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 389
Additional Maintenance
and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer
perform these services—their trained
dealer technicians know your vehicle
best. Your dealer can also perform a
thorough assessment with a
multi-point inspection to recommend
when your vehicle may need
attention.
The following list is intended to
explain the services and conditions to
look for that may indicate services are
required.
Battery
The 12-volt battery supplies power to
start the engine and operate any
additional electrical accessories. .
To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of cracking
or splitting.
. Trained dealer technicians have
access to tools and equipment to
inspect the belts and recommend
adjustment or replacement when
necessary.
Brakes
Brakes stop the vehicle and are crucial
to safe driving.
. Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping. .
Trained dealer technicians have
access to tools and equipment to
inspect the brakes and recommend
quality parts engineered for the
vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids
and Lubricants 0392 for GM approved
fluids.
. Engine oil and windshield washer
fluid levels should be checked at
every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be filled.
Hoses
Hoses transport fluids and should be
regularly inspected to ensure that
there are no cracks or leaks. With a
multi-point inspection, your dealer
can inspect the hoses and advise if
replacement is needed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 393
UsageFluid/Lubricant
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 2.0L L4 Engine 23418368 A3219C
3.0L V6 Engine (Driver Side) 23441383 A3207C
3.0L V6 Engine (Passenger Side) 23450879 A3206C
3.6L V6 Engine 23458700 A3204C
4.2L V8 Engine 84166540 A3242C
Engine Oil Filter
2.0L L4 Engine 55495105 PF66
3.0L V6 Engine 19330000 PF63E
3.6L V6 Engine 19330000 PF63E

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INDEX 429
Driving (cont'd)Vehicle Load Limits . . . . . . . . . . . . . . 197
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 193
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
E
Electric Parking Brake . . . . . . . . . . . . . . 218
Electric Parking Brake Light . . . . . . . 143
Electrical Equipment, Add-On . . . . . 287
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Fuses and Circuit Breakers . . . . . . . 322
Instrument Panel Fuse Block . . . . 330
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 304
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 139
Compartment Overview . . . . . . . . . . 292
Coolant Temperature Gauge . . . . . 135
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . . . . . 146
Cooling System . . . . . . . . . . . . . . . . . . . 307 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . . . . . 399
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Oil Life System . . . . . . . . . . . . . . . . . . . . 302
Oil Pressure Gauge . . . . . . . . . . . . . . . . 134
Oil Pressure Light . . . . . . . . . . . . . . . . . 147
Overheating . . . . . . . . . . . . . . . . . . . . . . . 312
Power Messages . . . . . . . . . . . . . . . . . . 156
Running While Parked . . . . . . . . . . . 210
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Engine Air Filter Life System . . . . . . 304
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 172
Equipment, Towing . . . . . . . . . . . . . . . . . 286
Event Data Recorders . . . . . . . . . . . . . . 412
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 172
Extended Parking . . . . . . . . . . . . . . . . . . . 209
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 82
Exterior Lamp Controls . . . . . . . . . . . . 166
Exterior Lamps Off Reminder . . . . . . 168
Exterior Lighting Battery Saver . . . . 173
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 304 Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 168
Flashers, Hazard Warning . . . . . . . . . . 169
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Fluid Automatic Transmission . . . . . . . . . 303
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 53
Forward Automatic Braking . . . . . . . . 264
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Front Seats Heated and Ventilated . . . . . . . . . . . . . 70
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Economy Driving . . . . . . . . . . . . . . . . . . . 27
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 280
Filling the Tank . . . . . . . . . . . . . . . . . . . 278
Foreign Countries . . . . . . . . . . . . . . . . . 278
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Low Fuel Warning Light . . . . . . . . . 148

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
436 INDEX
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 133
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Turn and Lane-Change Signals . . . . 170
U
Uniform Tire Quality Grading . . . . . . 357
Universal Remote System . . . . . . . . . . 162Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Programming . . . . . . . . . . . . . . . . . . . . . . 162
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . 49
Automatic Hold Light . . . . . . . . . . . . 144
Canadian Owners . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Identification Number (VIN) . . . . . 396
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 197
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Personalization . . . . . . . . . . . . . . . . . . . 157
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 36
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Speed Messages . . . . . . . . . . . . . . . . . . . 156
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Vehicle Ahead Indicator . . . . . . . . . . . . 144 Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 346
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412
Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 220
Vehicle Hold (AVH)
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 220
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 187
Video Recorder . . . . . . . . . . . . . . . . . . . . . . 274
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . 136
W
Warning Brake System Light . . . . . . . . . . 141, 142
Caution and Danger . . . . . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . . . . . 272
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Warnings
Hazard Flashers . . . . . . . . . . . . . . . . . . . 169
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 313
Wheels Alignment and Tire Balance . . . . . 358
Different Size . . . . . . . . . . . . . . . . . . . . . . 356
Replacement . . . . . . . . . . . . . . . . . . . . . . 358
When It Is Time for New Tires . . . . 354 Where to Put the Restraint . . . . . . . . 101
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 319
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 120
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 340
Wiper Blade Replacement . . . . . . . . . . 319
Wireless Charging . . . . . . . . . . . . . . . . . . 123