Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
SERVICE AND MAINTENANCE 311
checks and services. The Additional
Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire
and Loading Information label. See
Vehicle Load Limits 0191.
. Are driven on reasonable road
surfaces within legal driving limits.
. Use the recommended fuel. See
Fuel 0240.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
. Mainly driven in heavy city traffic
in hot weather.
. Mainly driven in hilly or
mountainous terrain.
. Frequently towing a trailer.
. Used for high speed or competitive
driving.
. Used for taxi, police, or delivery
service. Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.
{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. See
Doing Your Own
Service Work 0245.
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
.
Check the engine oil level. See
Engine Oil 0250.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0279.
. Inspect the tires for wear. See Tire
Inspection 0284.
. Check the windshield washer fluid
level. See Washer Fluid 0260.
Engine Oil Change
Change the engine oil and filter when
the CHANGE ENGINE OIL SOON
message displays, 12 000 km/7,500 mi,
or at one year, whichever comes first.
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
Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
312 SERVICE AND MAINTENANCE
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. SeeEngine Oil Life
System 0252.
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 Rotation0284.
. Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil0250
and Engine Oil Life System 0252.
. Check engine coolant level. See
Engine Coolant 0256.
. Check windshield washer fluid
level. See Washer Fluid 0260.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0301. Replace worn or
damaged wiper blades. See Wiper
Blade Replacement 0265. .
Check tire inflation pressures. See
Tire Pressure 0279.
. Inspect tire wear. See Tire
Inspection 0284.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter 0254.
. Inspect brake system. See Exterior
Care 0301.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear.
See Exterior Care 0301.
. Check restraint system
components. See Safety System
Check 072.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for loose
or damaged parts.
. Lubricate body components. See
Exterior Care 0301.
. Check starter switch. See Starter
Switch Check 0264. .
Check automatic transmission
shift lock control function. See
Automatic Transmission Shift Lock
Control Function Check 0264.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check 0265.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for signs
of wear, cracks, or other damage.
Check the hold open ability of the
strut. See your dealer if service is
required.
. Inspect sunroof track and seal,
if equipped. See Sunroof052.
Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
316 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 Rotation0284.
(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 two years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(5) 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.
(6) Or every five years, whichever
comes first. See Cooling System0255.
(7) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0262.Special Application
Services
Severe Conditions Requiring
More Frequent Maintenance
.
Public service, military,
or commercial use vehicles to
include the following:
‐Ambulances, police cars and
emergency rescue vehicles.
‐ Civilian vehicles such as light
duty pick-up trucks, SUVs and
passenger cars that are used in
military applications.
‐ Recovery vehicles such as tow
trucks and flatbed single vehicle
carriers or any vehicle that is
consistently used in towing
trailers or other loads.
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
Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
330 INDEX
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 169
Extended Parking . . . . . . . . . . . . . . . . . . . 200
Exterior Lamp Controls . . . . . . . . . . . . 163
Exterior Lamps Off Reminder . . . . . . 164
Exterior Lighting Battery Saver . . . . 169
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 254
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 165
Flashers, Hazard Warning . . . . . . . . . . 166
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Fluid Automatic Transmission . . . . . . . . . 253
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 46
Forward Automatic Braking . . . . . . . . 230
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Front Seats Heated and Ventilated . . . . . . . . . . . . . 62
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 Fuel (cont'd)
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Economy Driving . . . . . . . . . . . . . . . . . . . 26
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 242
Filling the Tank . . . . . . . . . . . . . . . . . . . 240
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Low Fuel Warning Light . . . . . . . . . 134
System Messages . . . . . . . . . . . . . . . . . 145
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Fuses and Circuit Breakers . . . . . . . 269
Instrument Panel Fuse Block . . . . 272
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
G
Garage Door OpenerProgramming . . . . . . . . . . . . . . . . . . . . . . 160
Gauges Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Engine Coolant Temperature . . . . 124
Engine Oil Pressure . . . . . . . . . . . . . . . 123
Engine Oil Temperature . . . . . . . . . . 123
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Speedometer . . . . . . . . . . . . . . . . . . . . . . 121
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 121 Gauges (cont'd)
Trip Odometer . . . . . . . . . . . . . . . . . . . . 121
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 114
General Information Service and Maintenance . . . . . . . . 310
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 245
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
H
Hazard Warning Flashers . . . . . . . . . . 166
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 56
Head-up Display . . . . . . . . . . . . . . . . . . . . 138
Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 165
Bulb Replacement . . . . . . . . . . . . . . . . 267
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 165
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 165
High-Beam On Light . . . . . . . . . . . . . . 134
High/Low Beam Changer . . . . . . . . . 164
Lamps On Reminder . . . . . . . . . . . . . . 135
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . 108
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
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INDEX 335
Storage AreasArmrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Center Console . . . . . . . . . . . . . . . . . . . . 104
Convenience Net . . . . . . . . . . . . . . . . . . 105
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . 103
Instrument Panel . . . . . . . . . . . . . . . . . 103
Storage Compartments . . . . . . . . . . . . . 103
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . 190
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . 278
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Sunshade
Rear Window . . . . . . . . . . . . . . . . . . . . . . . . 51
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision Alert (FCA) . . . . 228
Infotainment . . . . . . . . . . . . . . . . . . . . . . 170
Night Vision . . . . . . . . . . . . . . . . . . . . . . . 234
Systems Driver Assistance . . . . . . . . . . . . . . . . . 221
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 121
Theft-Deterrent Systems . . . . . . . . . . . . 44
Thigh Support Adjustment . . . . . . . . . . 59
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 277
Buying New Tires . . . . . . . . . . . . . . . . . 286 Tires (cont'd)
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Compact Spare . . . . . . . . . . . . . . . . . . . . 295
Different Size . . . . . . . . . . . . . . . . . . . . . . 288
If a Tire Goes Flat . . . . . . . . . . . . . . . . 289
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 284
Low Profile . . . . . . . . . . . . . . . . . . . . . . . . 278
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Pressure . . . . . . . . . . . . . . . . . . . . . . 279, 280
Pressure Light . . . . . . . . . . . . . . . . . . . . . 133
Pressure Monitor Operation . . . . . . 281
Pressure Monitor System . . . . . . . . 280
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Wheel Replacement . . . . . . . . . . . . . . 288
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Towing General Information . . . . . . . . . . . . . . 243
Recreational Vehicle . . . . . . . . . . . . . . 299
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . . . . 132
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . . . . . 208
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 201
Fluid, Automatic . . . . . . . . . . . . . . . . . . 253
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 121
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Turn and Lane-Change Signals . . . . 166
U
Universal Remote System
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Programming . . . . . . . . . . . . . . . . . . . . . . 160
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . . . . . . 42
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Identification Number (VIN) . . . . . 321
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 191
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Personalization . . . . . . . . . . . . . . . . . . . 152
Reminder Messages . . . . . . . . . . . . . . 151
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 34
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Speed Messages . . . . . . . . . . . . . . . . . . . 151
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Vehicle Ahead Indicator . . . . . . . . . . . . 131