2019 CADILLAC CT6 wiper fluid

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 375
Bugs, road grime, sap, and a buildup
of vehicle wash/wax treatments may
cause wiper streaking.
Replace the wiper blades if they are
worn or damaged. Damage can be
caused by extreme dusty conditions,
sand, salt, heat, sun, snow, and ice.
Weatherstrips
Apply weatherstrip lubricant on
weatherstrips to make them last
longer, seal better, and not stick or
squeak. Lubricate weatherstrips at
least once a year. Hot, dry climates
may require more frequent
application. Black marks from rubber
material on painted surfaces can be
removed by rubbing with a clean
cloth. SeeRecommended Fluids and
Lubricants 0392.
Tires
Use a stiff brush with tire cleaner to
clean the tires.
Caution
Using petroleum-based tire dressing
products on the vehicle may
damage the paint finish and/or
tires. When applying a tire dressing,
always wipe off any overspray from
all painted surfaces on the vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with mild soap
and water to clean the wheels. After
rinsing thoroughly with clean water,
dry with a soft, clean towel. A wax
may then be applied.
Caution
Chrome wheels and chrome wheel
trim may be damaged if the vehicle
is not washed after driving on roads
that have been sprayed with
magnesium chloride or calcium
chloride. These are used on roads
for conditions such as dust and ice.
Always wash the chrome with soap
and water after exposure.
Caution
To avoid surface damage on wheels
and wheel trim, do not use strong
soaps, chemicals, abrasive polishes,
cleaners, or brushes. Use only GM
approved cleaners. Do not drive the
vehicle through an automatic car
wash that uses silicon carbide tire/
wheel cleaning brushes. Damage
could occur and the repairs would
not be covered by the vehicle
warranty.
Brake System
Visually inspect brake lines and hoses
for proper hook-up, binding, leaks,
cracks, chafing, etc. Inspect disc brake
pads for wear and rotors for surface
condition. Inspect brake linings/shoes
for wear or cracks. Inspect all other
brake parts.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 381
Service and
Maintenance
General Information
General Information . . . . . . . . . . . . . 381
Maintenance Schedule
Maintenance Schedule . . . . . . . . . . . 383
Special Application Services
Special Application Services . . . . . 388
Additional Maintenance
and Care
Additional Maintenanceand Care . . . . . . . . . . . . . . . . . . . . . . . . . 389
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 392
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Maintenance Records
Maintenance Records . . . . . . . . . . . . 395
General Information
Your vehicle is an important
investment. This section describes the
required maintenance for the vehicle.
Follow this schedule to help protect
against major repair expenses
resulting from neglect or inadequate
maintenance. It may also help to
maintain the value of the vehicle if it
is sold. It is the responsibility of the
owner to have all required
maintenance performed.
Your dealer has trained technicians
who can perform required
maintenance using genuine
replacement parts. They have
up-to-date tools and equipment for
fast and accurate diagnostics. Many
dealers have extended evening and
Saturday hours, courtesy
transportation, and online scheduling
to assist with service needs.
Your dealer recognizes the importance
of providing competitively priced
maintenance and repair services. With
trained technicians, the dealer is the
place for routine maintenance such as
oil changes and tire rotations and additional maintenance items like
tires, brakes, batteries, and wiper
blades.
Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered by
the vehicle warranty. Maintenance
intervals, checks, inspections,
recommended fluids, and lubricants
are important to keep the vehicle in
good working condition.
Do not have chemical flushes that
are not approved by GM performed
on the vehicle. The use of flushes,
solvents, cleaners, or lubricants that
are not approved by GM could
damage the vehicle, requiring
expensive repairs that are not
covered by the vehicle warranty.
The Tire Rotation and Required
Services are the responsibility of the
vehicle owner. It is recommended to
have your dealer perform these
services every 12 000 km/7,500 mi.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 385
Maintenance Schedule
Additional Required Services -
Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires, if recommended for the vehicle, and
perform Required Services. Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed. (1)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (4.2L Engine
Only) (4)@@@@@
Replace engine air cleaner filter. (Except 4.2L
Engine) (5)@ @@
Replace spark plugs. Inspect spark plug wires.
(Except 3.6L Engine)@ @
Replace spark plugs. Inspect spark plug wires. (3.6L
Engine Only)@
Drain and fill engine cooling system. (6)@
Change transfer case fluid, if equipped with
AWD. (7)@
Change rear axle fluid. (Except V-Series)@
Replace rear axle fluid. (V-Series Only)@@@
Visually inspect accessory drive belts. (8)@
Replace brake fluid. (9)
Replace windshield wiper blades. (10)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts.@ @

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
386 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Normal
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0353.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter. (3)
Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every three years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(5) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(6) Or every five years, whichever
comes first. See Cooling System0307.
(7) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced. (8)
Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(9) Replace brake fluid every five
years for DOT 3 fluid or every three
years for DOT 4 fluid. See Brake Fluid
0 315.
(10) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0319.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
SERVICE AND MAINTENANCE 387
Maintenance Schedule
Additional Required Services -
Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires, if recommended for the vehicle, and
perform Required Services. Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed. (1)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (4.2L Engine
Only) (4)@@@@@
Replace engine air cleaner filter. (Except 4.2L
Engine) (5)@ @@
Replace spark plugs. Inspect spark plug wires.
(Except 3.6L Engine)@ @
Replace spark plugs. Inspect spark plug wires. (3.6L
Engine Only)@
Change automatic transmission fluid and filter.@@@
Change transfer case fluid, if equipped with
AWD. (6)@@@
Change rear axle fluid.@@@
Change front axle fluid, if equipped with AWD.@@@
Drain and fill engine cooling system. (7)@
Visually inspect accessory drive belts. (8)@
Replace brake fluid. (9)
Replace windshield wiper blades. (10)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts.@ @

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
388 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Severe
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0353.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every three years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed. (5)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(6) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(7) Or every five years, whichever
comes first. See Cooling System0307.
(8) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(9) Replace brake fluid every five
years for DOT 3 fluid or every three
years for DOT 4 fluid. See Brake Fluid
0 315.
(10) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0319.Special Application
Services
.
Severe Commercial Use Vehicles
Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 372.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INDEX 427
Assistance Systems for Parkingand Backing . . . . . . . . . . . . . . . . . . . . . . . 253
Auto Stop Stop/Start System . . . . . . . . . . . . . . . . 203
Automatic Climate Control System . . . . . 175, 180
Dimming Mirrors . . . . . . . . . . . . . . . . . . . 53
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Forward Braking . . . . . . . . . . . . . . . . . . 264
Headlamp System . . . . . . . . . . . . . . . . 169
Transmission . . . . . . . . . . . . . . . . . . . . . . 210
Transmission Fluid . . . . . . . . . . . . . . . 303
Vehicle Hold Light . . . . . . . . . . . . . . . . 144
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . 215
Automatic Vehicle Hold (AVH) . . . . 220
B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Load Management . . . . . . . . . . . . . . . . 173
Power Protection . . . . . . . . . . . . . . . . . . 173
Battery - North America . . . . . .316, 367
Blade Replacement, Wiper . . . . . . . . . 319
Brake Parking, Electric . . . . . . . . . . . . . . . . . . 218
System Warning Light . . . . . . . 141, 142 Brake Pad Life System . . . . . . . . . . . . . . 315
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Pad Life System . . . . . . . . . . . . . . . . . . . 315
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Automatic Forward . . . . . . . . . . . . . . . 264
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 266
Break-In, New Vehicle . . . . . . . . . . . . . . 200
Bulb Replacement
Headlamp Aiming . . . . . . . . . . . . . . . . 321
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 321
Buying New Tires . . . . . . . . . . . . . . . . . . . 355
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 122
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 290
California Proposition 65 Warning . . . . . . . . . . . . .289, 316, 367, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2
Capacities and Specifications . . . . . . 397
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 209 Carbon Monoxide (cont'd)
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Winter Driving . . . . . . . . . . . . . . . . . . . . 195
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . 117
Caution, Danger, and Warning . . . . . . . . 2
Center Console Storage . . . . . . . . . . . . . 116
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 359
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Charging System Light . . . . . . . . . . . . . 139
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 139
Child Restraints Infants and Young Children . . . . . . . . 97
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . . . . 102
Older Children . . . . . . . . . . . . . . . . . . . . . . 96
Securing . . . . . . . . . . . . . . . . . . . . . . 108, 111
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . 125
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 322
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 372
Interior Care . . . . . . . . . . . . . . . . . . . . . . 376
Climate Control Systems Automatic . . . . . . . . . . . . . . . . . . . . 175, 180

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