2016 CADILLAC CT6 oil change

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Service and Maintenance 347(3) Check all fuel and vapor lines
and hoses for proper hook-up,
routing, and condition.
(4) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
(5) Or every five years, whichever
comes first. See Cooling
System 0 275 .
(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 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 0 283 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
348 Service and Maintenance Maintenance Schedule
Additional Required
Services - Severe
12 000 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 miRotate 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)
@ @ @Replace spark plugs. Inspect spark plug wires.
(2.0L and 3.0L Twin Turbo Engines)
@ @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. (5)
@ @ @Change rear axle fluid.
@ @ @Change front axle fluid, if equipped with AWD.
@ @ @Drain and fill engine cooling system. (6)
@Visually inspect accessory drive belts. (7)
@Replace brake fluid. (8)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Service and Maintenance 349Footnotes — Maintenance
Schedule Additional Required
Services - Severe
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation 0 313 .
(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 airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(3) Check all fuel and vapor lines
and hoses for proper hook-up,
routing, and condition.
(4) Or every four 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
System 0 275 .
(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 0 283 .Special Application
Services .
Severe Commercial Use
Vehicles Only: Lubricate chassis
components every 5 000 km/
3,000 mi.
.
Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior
Care 0 333 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
378 OnStar 4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.
1. To retrieve Wi-Fi hotspot
information, press
= , wait for
the prompt, then say “ Wi-Fi
settings. ” On some vehicles,
touch Wi-Fi Settings on the
screen.
2. The Wi-Fi settings will display
the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or
password, press
Q or call
1-888-4ONSTAR to connect
with an Advisor.
OnStar RemoteLink ®
Mobile App
(If Equipped)
Download the OnStar RemoteLink
mobile app to select Apple ®
iOS,
Android ™ , BlackBerry ®
,
or Windows ®
mobile devices. OnStar Subscribers can access the
following services from a mobile
device:
.
Remotely start/stop the vehicle,
if factory-equipped.
.
Lock/unlock doors, if equipped
with automatic locks.
.
Activate the horn and lamps.
.
Check the vehicle ’ s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
.
Send directions to the vehicle.
.
Locate the vehicle on a map
(U.S. market only).
.
Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
For OnStar RemoteLink information
and compatibility, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada). Remote Services Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
OnStar AtYourService OnStar Advisors can provide special
offers from restaurants and retailers
on your route, help locate hotels,
or book a room.
OnStar Hands-Free Calling Make and receive calls with the
built-in wireless calling service,
which requires available minutes.
Make a Call
1. Press
= . System responds:
“ OnStar ready. ”
2. Say “ Call. ” System responds:
“ Call. Please say the name or
number to call. ”
3. Say the entire number without
pausing, including a “ 1 ” and the
area code. System responds:
“ OK, calling. ”

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