Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
258 Driving and Operating 2. Have someone place chocks
under the trailer wheels.
3. When the wheel chocks are in
place, release the regular
brakes until the chocks absorb
the load.
4. Reapply the brake pedal. Then
apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill 1. Apply and hold the brake
pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is
clear of the chocks.
7. Stop and have someone pick
up and store the chocks. Maintenance when Trailer
Towing The vehicle needs service more
often when pulling a trailer. See
Maintenance Schedule 0 344 .
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system, and
brake system. It is a good idea to
inspect these before and during
the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Trailer Towing Before pulling a trailer, three
important considerations have to do
with weight:
.
Weight of the trailer.
.
Weight of the trailer tongue.
.
Total weight on your vehicle's
tires.
Weight of the Trailer
How heavy can a trailer safely be? It should never weigh more than
454 kg (1,000 lb). But even that can
be too heavy.
It depends on how the rig is used.
For example, speed, altitude, road
grades, outside temperature, and
how much the vehicle is used to pull
a trailer are all important. It can
depend on any special equipment
on the vehicle, and the amount of
tongue weight the vehicle can carry.
See “ Weight of the Trailer Tongue ”
following.
Maximum trailer weight is calculated
assuming only the driver is in the
tow vehicle and it has all the
required trailering equipment. The
weight of additional optional
equipment, passengers, and cargo
in the tow vehicle must be
subtracted from the maximum trailer
weight.
Ask your dealer for trailering
information or advice, or write us at
our Customer Assistance Offices.
See Customer Assistance
Offices 0 363 .
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
272 Vehicle Care Viscosity Grade
Use SAE 5W-30 viscosity grade
engine oil.
Cold Temperature Operation: In an
area of extreme cold, where the
temperature falls below − 29 °C
( − 20 °F), an SAE 0W-30 oil may be
used. An oil of this viscosity grade
will provide easier cold starting for
the engine at extremely low
temperatures. When selecting an oil
of the appropriate viscosity grade, it
is recommended to select an oil of
the correct specification. See
“ Specification ” earlier in this section.
Engine Oil Additives/Engine
Oil Flushes Do not add anything to the oil. The
recommended oils meeting the
dexos1 specification are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty. What to Do with Used Oil Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON message comes on. See
Engine Oil Messages 0 149 .
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and at this time the system must be
reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Vehicle Care 277
Engine Coolant The cooling system in the vehicle is
filled with DEX-COOL ®
engine
coolant. This coolant needs to be
checked and replaced at
appropriate intervals. See
Maintenance Schedule 0 344 .
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0 280 .
What to Use
{ WarningAdding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
(Continued) Warning (Continued) overheat warning. The engine
could catch fire and you or others
could be burned. Use a 50/
50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:
.
Gives freezing protection down
to − 37 °C ( − 34 °F), outside
temperature.
.
Gives boiling protection up to
129 °C (265 °F), engine
temperature.
.
Protects against rust and
corrosion.
.
Will not damage aluminum parts.
.
Helps keep the proper engine
temperature. CautionIf improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants 0 353 .
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
388 Index E Electric Parking Brake . . . . . . . . . . 214
Electric Parking Brake Light . . . . 134
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 260
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 290
Fuses and Circuit Breakers . . . 290
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Overload . . . . . . . . . . . . . . . . . . . . . 289
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 295
Emergency
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 376
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 273
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 132
Compartment Overview . . . . . . . 265
Coolant . . . . . . . . . . . . . . . . . . . . . . . 277
Coolant Heater . . . . . . . . . . . . . . . 206
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 128 Engine (cont'd)
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 137
Cooling System . . . . . . . . . . . . . . . 275
Cooling System Messages . . . 149
Drive Belt Routing . . . . . . . . . . . . 360
Exhaust . . . . . . . . . . . . . . . . . . . . . . 209
Oil Life System . . . . . . . . . . . . . . . 272
Oil Messages . . . . . . . . . . . . . . . . . 149
Oil Pressure Gauge . . . . . . . . . . 126
Oil Pressure Light . . . . . . . . . . . . 138
Overheating . . . . . . . . . . . . . . . . . . 280
Power Messages . . . . . . . . . . . . . 150
Running While Parked . . . . . . . . 210
Starting . . . . . . . . . . . . . . . . . . . . . . . 204
Engine Oil
Temperature Gauge . . . . . . . . . . 127
Entry Lighting . . . . . . . . . . . . . . . . . . . 175
Equipment, Towing . . . . . . . . . . . . . 259
Event Data Recorders . . . . . . . . . . 373
Exit Lighting . . . . . . . . . . . . . . . . . . . . 176
Extender, Safety Belt . . . . . . . . . . . . 75
Exterior Lamp Controls . . . . . . . . . 170
Exterior Lamps Off Reminder . . . 172
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 176 F Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 273
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 172
Flashers, Hazard Warning . . . . . . 173
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 320
Changing . . . . . . . . . . . . . . . . . . . . . 321
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 341
Fluid
Automatic Transmission . . . . . . 273
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 283
Washer . . . . . . . . . . . . . . . . . . . . . . . 281
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 237
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 371
Front Automatic Braking
(FAB) System . . . . . . . . . . . . . . . . . 240
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 241
Front Seats
Heated and Ventilated . . . . . . . . . . 64
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Additives . . . . . . . . . . . . . . . . . . . . . 253
Economy Driving . . . . . . . . . . . . . . . 27
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Index 389Fuel (cont'd)
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 255
Filling the Tank . . . . . . . . . . . . . . . 253
Foreign Countries . . . . . . . . . . . . 253
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 124
Low Fuel Warning Light . . . . . . . 138
Requirements, California . . . . . 253
System Messages . . . . . . . . . . . . 150
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 290
Fuses and Circuit Breakers . . . 290
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 295
G Garage Door Opener . . . . . . . . . . . 166
Programming . . . . . . . . . . . . . . . . . 166
Gauges
Boost . . . . . . . . . . . . . . . . . . . . . . . . . 125
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 128
Engine Oil Pressure . . . . . . . . . . 126
Engine Oil Temperature . . . . . . . 127
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Odometer . . . . . . . . . . . . . . . . . . . . . 124 Gauges (cont'd)
Speedometer . . . . . . . . . . . . . . . . . 123
Tachometer . . . . . . . . . . . . . . . . . . . 124
Trip Odometer . . . . . . . . . . . . . . . . 124
Voltmeter . . . . . . . . . . . . . . . . . . . . . 129
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . .117
General Information
Service and Maintenance . . . . . 342
Towing . . . . . . . . . . . . . . . . . . . . . . . . 255
Vehicle Care . . . . . . . . . . . . . . . . . . 262
Glove Box . . . . . . . . . . . . . . . . . . . . . . 106
H Hazard Warning Flashers . . . . . . . 173
Head Restraints . . . . . . . . . . . . . . . . . 58
Head-up Display . . . . . . . . . . . . . . . . 143
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 287
Automatic . . . . . . . . . . . . . . . . . . . . . 172
Bulb Replacement . . . . . . . . . . . . 288
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 172
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
High-Beam On Light . . . . . . . . . . 139
High/Low Beam Changer . . . . . 172
Lamps On Reminder . . . . . . . . . 139
Heated
Steering Wheel . . . . . . . . . . . . . . . . 111 Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Heated and Ventilated Rear
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Heated Mirrors . . . . . . . . . . . . . . . . . . . 49
Heater
Engine Coolant . . . . . . . . . . . . . . . 206
Heating and Air
Conditioning . . . . . . . . . . . . . . 178, 185
High-Beam On Light . . . . . . . . . . . . 139
High-Speed Operation . . . . . . . . . . 308
Hill and Mountain Roads . . . . . . . . 196
Hill Start Assist (HSA) . . . . . . . . . . 216
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 71
I Ignition Positions . . . . . . . . . . . . . . . 202
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 46
Indicator
Pedestrian Ahead . . . . . . . . . . . . 136
Vehicle Ahead . . . . . . . . . . . . . . . . 136
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 90
Infotainment . . . . . . . . . . . . . . . . . . . . 177
Infotainment System . . . . . . . . . . . . 374
Instrument Cluster . . . . . . . . . 118, 121
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
390 Index Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . 106
Instrument Panel Overview . . . . . . . 6
Interior Rearview Mirrors . . . . . . . . . 49
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 327
K Key and Lock Messages . . . . . . . . 150
Keyless Entry
Remote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L Labeling, Tire Sidewall . . . . . . . . . . 301
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 174
Daytime Running (DRL) . . . . . . 172
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exterior Controls . . . . . . . . . . . . . . 170
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 172
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 176
License Plate . . . . . . . . . . . . . . . . . 288
Malfunction Indicator . . . . . . . . . 132
Messages . . . . . . . . . . . . . . . . . . . . 151 Lamps (cont'd)
On Reminder . . . . . . . . . . . . . . . . . 139
Reading . . . . . . . . . . . . . . . . . . . . . . 175
Lane Change Alert (LCA) . . . . . . . 246
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 248
Lane Keep Assist (LKA) . . . . . . . . 248
Lane Keep Assist Light . . . . . . . . . 135
Lap-Shoulder Belt . . . . . . . . . . . . . . . 72
LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 100
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 95
LED Lighting . . . . . . . . . . . . . . . . . . . . 288
Light, Auto Stop Mode . . . . . . . . . . 139
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 175
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Illumination Control . . . . . . . . . . . 174
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Airbag Readiness . . . . . . . . . . . . . 130
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 135
Brake System Warning . . . . . . . 133
Charging System . . . . . . . . . . . . . 131
Cruise Control . . . . . . . . . . . . . . . . 140 Lights (cont'd)
Door Ajar . . . . . . . . . . . . . . . . . . . . . 140
Electric Parking Brake . . . . . . . . 134
Engine Coolant
Temperature Warning . . . . . . . 137
Engine Oil Pressure . . . . . . . . . . 138
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
High-Beam On . . . . . . . . . . . . . . . . 139
High/Low Beam Changer . . . . . 172
Low Fuel Warning . . . . . . . . . . . . 138
Safety Belt Reminders . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 139
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 134
StabiliTrak ®
OFF . . . . . . . . . . . . . 136
Tire Pressure . . . . . . . . . . . . . . . . . 137
Traction Control System
(TCS)/StabiliTrak ®
. . . . . . . . . . 137
Traction Off . . . . . . . . . . . . . . . . . . . 136
Locks
Automatic Door . . . . . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . . 39
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Lockout Protection . . . . . . . . . . . . . . 39
Power Door . . . . . . . . . . . . . . . . . . . . . 39
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Loss of Control . . . . . . . . . . . . . . . . . 195
Low Fuel Warning Light . . . . . . . . . 138