2020 CADILLAC CT6 high beam

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
302 VEHICLE CARE
RelaysUsage
14 Air conditioning control
15 Starter motor
16 Starter pinion
17 Run/Crank
19 –
20 High-beam headlamp
25 Cabin heater pump
48 –
49 –
50 Engine control module
51 Wiper speed
52 Wiper control
53 Headlamp control
65 – 4.2L Engine
The 4.2L engine has an underhood
fuse block on each side of the engine
compartment.
Driver Side Fuse Block
Lift the fuse block cover to access the
fuses. The vehicle may not be equipped with
all of the fuses and relays shown.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the covers
on any electrical component.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
VEHICLE CARE 303
FusesUsage
F1 –
F2 –
F3 –
F4 –
F5 High-beam headlamps left/right
F6 – Fuses
Usage
F7 Front wiper
F8 –
F9 Instrument cluster/ Electric brake control
module 1/Central
gateway module
ignition
F10 – Fuses
Usage
F11 Transmission control/Transfer case
control module
ignition
F12 –
F13 Front heated seats ignition
F14 Exhaust valve solenoid
F15 Rear heated seats ignition
F16 Fuel tank zone module ignition
F17 –
F18 –
F19 –
F20 –
F21 Heated steering wheel module/
Reflective light aux
display/HVAC IGN/
Automatic occupant
sensing display

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
304 VEHICLE CARE
FusesUsage
F22 Electric steering column lock ignition
F23 Washer
F24 Left cornering LED
F25 –
F26 –
F27 –
F28 –
F29 Electric brake control module–1
Relays Usage
R1 –
R2 –
R3 –
R4 High-beam headlamp
R5 Wiper control
R6 Wiper speed
R7 Run/Crank
R8 – The 8-cylinder engine has an
underhood fuse block on each side of
the engine compartment.
Passenger Side Fuse Block
Lift the fuse block cover to access the
fuses. The vehicle may not be equipped with
all of the fuses and relays shown.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the covers
on any electrical component.

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
INDEX 405
InformationPublication Ordering . . . . . . . . . . . . . 385
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 157
Infotainment System . . . . . . . . . . . . . . . 389
Instrument Cluster . . . . . . . . . . . .110, 113
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . . . . . . 98
Instrument Panel Overview . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . . . 35
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 343
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . 10
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 317
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Daytime Running (DRL) . . . . . . . . . . 151
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Exterior Controls . . . . . . . . . . . . . . . . . . 149
Exterior Lamps Off Reminder . . . . 151 Lamps (cont'd)
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 123
On Reminder . . . . . . . . . . . . . . . . . . . . . . 131
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Lane Change Alert (LCA) . . . . . . . . . . . 252
Lane Keep Assist (LKA) . . . . . . . . . . . . 254
Lane Keep Assist Light . . . . . . . . . . . . . 127
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 60
LATCH System Replacing Parts after a Crash . . . . . . 91
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . . . . 84
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 297
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Illumination Control . . . . . . . . . . . . . . 153
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 121
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 126
Automatic Vehicle Hold . . . . . . . . . . 127
Brake System Warning . . . . . . . . . . . 125
Charging System . . . . . . . . . . . . . . . . . . 122 Lights (cont'd)
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 123
Cruise Control . . . . . . . . . . . . . . . . . . . . . 131
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Driver Mode Control . . . . . . . . . . . . . . 129
Electric Parking Brake . . . . . . . . . . . . 125
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 129
Engine Oil Pressure . . . . . . . . . . . . . . . 130
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 151
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 126
High-Beam On . . . . . . . . . . . . . . . . . . . . 131
High/Low Beam Changer . . . . . . . . . 151
Lane Keep Assist . . . . . . . . . . . . . . . . . . 127
Low Fuel Warning . . . . . . . . . . . . . . . . 130
Seat Belt Reminders . . . . . . . . . . . . . . 120
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Service Electric Parking Brake . . . 126
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 128
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 129
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 128
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 128
Locking Rear Axle . . . . . . . . . . . . . . . . . . 208
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 21
Delayed Locking . . . . . . . . . . . . . . . . . . . . 21