Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
360 SERVICE AND MAINTENANCE
.Check tire inflation pressures. See
Tire Pressure 0322.
. Inspect tire wear. See Tire
Inspection 0329.
. Visually check for fluid leaks.
. Inspect brake system. See Exterior
Care 0349.
. 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 0349.
. Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc. .
Visually inspect halfshafts and
driveshafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or universal
joint looseness, cracked or missing
boots, loose or missing boot
clamps, center bearing excessive
looseness, loose or missing
fasteners, and axle seals leaks.
. Check restraint system
components. See Safety System
Check 064.
. 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 0349.
. Check starter switch. See Starter
Switch Check 0294.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check 0294.
. 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. If the hold open ability is
low, service the gas strut. See Gas
Strut(s) 0296.
. Inspect sunroof track and seal,
if equipped. See Sunroof041.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
366 SERVICE AND MAINTENANCE
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.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage. The
brake lamps need to be checked
periodically to ensure that they
light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns. Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.
Signs of wear may include steering
wheel vibration, bounce/sway
while braking, longer stopping
distance, or uneven tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of
leaking, blown seals, or damage,
and can advise when service is
needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel, and
can reduce the risk of tire failure. .
Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the tread
or sidewall; or a bulge or split in
the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also provide
tire/wheel balancing services to
ensure smooth vehicle operation
at all speeds. Your dealer sells and
services name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care 0353 and
Exterior Care 0349.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
CUSTOMER INFORMATION 385
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends that
you take an active role in its repair.
If you have a pre-determined repair
facility of choice, take the vehicle
there, or have it towed there. Specify
to the facility that any required
replacement collision parts be original
equipment parts, either new Genuine
GM parts or recycled original GM
parts. Remember, recycled parts will
not be covered by the GM vehicle
warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits, your
insurance company may initially value
the repair using aftermarket parts.
Discuss this with the repair
professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have
the vehicle repaired with Genuine GM
parts, even if your insurance coverage
does not pay the full cost.If another party's insurance company
is paying for the repairs, you are not
obligated to accept a repair valuation
based on that insurance company's
collision policy repair limits, as you
have no contractual limits with that
company. In such cases, you can have
control of the repair and parts choices
as long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system,
body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic operational
information about the vehicle. The
owner’s manual includes the
Maintenance Schedule for all models.Customer literature publications
available for purchase include owner’s
manuals, warranty manuals,
infotainment manuals, and portfolios.
Portfolios include an owner’s manual,
warranty manual, infotainment
manual, if applicable, and zip lock bag
or pouch.
Current and Past Models
Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see Helm,
Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
404 INDEX
Fuel (cont'd)Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Low Fuel Warning Light . . . . . . . . . 130
Management, Active . . . . . . . . . . . . . . 191
Prohibited Fuels . . . . . . . . . . . . . . . . . . 259
Recommended . . . . . . . . . . . . . . . 258, 259
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Fuses and Circuit Breakers . . . . . . . 298
Instrument Panel Fuse Block . . . . 306
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
G
Garage Door Opener . . . . . . . . . . . . . . . . 145
Programming . . . . . . . . . . . . . . . . . . . . . . 145
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 296
Gauges
Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Engine Coolant Temperature . . . . 119
Engine Oil Pressure . . . . . . . . . . . . . . . 117
Engine Oil Temperature . . . . . . . . . . 118
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Speedometer . . . . . . . . . . . . . . . . . . . . . . 115
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 116 Gauges (cont'd)
Trip Odometer . . . . . . . . . . . . . . . . . . . . 116
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 109
Gear Shifting Light . . . . . . . . . . . . . . . . . 126
General Information Service and Maintenance . . . . . . . . 357
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 271
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
H
Hazard Warning Flashers . . . . . . . . . . 152
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 44
Head-up Display . . . . . . . . . . . . . . . . . . . . 135
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 152
Bulb Replacement . . . . . . . . . . . . . . . . 297
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 151
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 151
High-Beam On Light . . . . . . . . . . . . . . 131
High/Low Beam Changer . . . . . . . . . 151
Lamps On Reminder . . . . . . . . . . . . . . 131 Heated
Steering Wheel . . . . . . . . . . . . . . . . . . . . 103
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Heated and Ventilated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 34
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Heating . . . . . . . . . . . . . . . . . . . . . . . . .158, 163
High-Beam On Light . . . . . . . . . . . . . . . . 131
High-Speed Operation . . . . . . . . . . . . . . 324
Hill and Mountain Roads . . . . . . . . . . 177
Hill Start Assist (HSA) . . . . . . . . . . . . . 201
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
How to Wear Seat Belts Properly . . . 58
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . .158, 163
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 183
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . 127
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 127
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
408 INDEX
RoadsDriving, Wet . . . . . . . . . . . . . . . . . . . . . . . 176
Roadside Service . . . . . . . . . . . . . . . . . . . . 380
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 329
Routing, Engine Drive Belt . . . . . . . . . 375
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
S
Safety Defects ReportingCanadian Government . . . . . . . . . . . . 386
General Motors . . . . . . . . . . . . . . . . . . . 387
U.S. Government . . . . . . . . . . . . . . . . . . 386
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety System Check . . . . . . . . . . . . . . . . 64
Scheduling Appointments . . . . . . . . . . 382
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . 60
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 120
Replacing after a Crash . . . . . . . . . . . . . 65
Use During Pregnancy . . . . . . . . . . . . . . 63 Seats
Head Restraints . . . . . . . . . . . . . . . . . . . . . 44
Heated and Ventilated Front . . . . . . . 51
Heated and Ventilated, Rear . . . . . . . 56
Lumbar Adjustment, Front . . . . . . . . . 46
Lumbar Adjustment, Rear . . . . . . . . . . 55
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Power Adjustment, Front . . . . . . . . . . 46
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Reclining Seatbacks . . . . . . . . . . . . . . . . 48
Securing Child Restraints . . . . . . . 92, 94
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . 30
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Accessories andModifications . . . . . . . . . . . . . . . . . . . . 272
Doing Your Own Work . . . . . . . . . . . 272
Maintenance Records . . . . . . . . . . . . 371
Maintenance, General Information . . . . . . . . . . . . . . . . . . . . . . 357
Parts Identification . . . . . . . . . . . . . . . 372
Scheduling Appointments . . . . . . . . 382
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Services
Special Application . . . . . . . . . . . . . . . 364
Servicing the Airbag . . . . . . . . . . . . . . . . . 75
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . 189
Side Blind Zone Alert (SBZA) . . . . . . 252
Signals, Turn and Lane-Change . . . . 153
Spare Tire
Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Special Application Services . . . . . . . 364
Specifications and Capacities . . . . . . 373
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 115
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . 201
Start Vehicle, Remote . . . . . . . . . . . . . . . 17
Starter Switch Check . . . . . . . . . . . . . . . 294
Starting the Engine . . . . . . . . . . . . . . . . . 185
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Heated Wheel . . . . . . . . . . . . . . . . . . . . . 103
Wheel Adjustment . . . . . . . . . . . . . . . . 103
Wheel Controls . . . . . . . . . . . . . . . . . . . 103
Stop/Start System . . . . . . . . . . . . . . . . . . 186
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99