2018 CADILLAC CT6 power steering

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
218 DRIVING AND OPERATING
2. Shift the vehicle to N (Neutral).This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to a
safe location.
3. Come to a complete stop, shift to P (Park), and turn off the
ignition.
4. Set the parking brake. See Electric Parking Brake 0235.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the vehicle
off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold ENGINE START/STOP
for longer than two seconds, or press
twice in five seconds. ACC/ACCESSORY (Amber Indicator
Light) :
This mode allows you to use
some electrical accessories when the
engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to off after five minutes
to prevent battery rundown.
ON/RUN/START (Green Indicator
Light) : This mode is for driving and
starting. With the ignition off, and the
brake pedal applied, pressing the
button once will turn the ignition on.
Once engine cranking begins, release
the button. Engine cranking will
continue until the engine starts.
See Starting the Engine (PLUG-IN Only)
0 218 orStarting the Engine (Gasoline
Only) 0221. The ignition will then
remain on.
Service Mode
This power mode is available for
service and diagnostics, and to verify
the proper operation of the
malfunction indicator lamp as may be required for emission inspection
purposes. With the vehicle off, and the
brake pedal not applied, pressing and
holding the button for more than
five seconds will place the vehicle in
Service Mode. The instruments and
audio systems will operate as they do
when the ignition is on, but the
vehicle will not be able to be driven.
The engine will not start in Service
Mode. Press the button again to turn
the ignition off.
Starting the Engine
(PLUG-IN Only)
{Warning
Shifting out of P (Park) with the
hood open, into any gear, may
cause the vehicle to move. To help
avoid serious injury to yourself or
others, be sure the vehicle
remains in P (Park) while the
hood remains open.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 233
Manual Mode
(Gasoline Only)
For PLUG-IN vehicles, seeRegenerative
Braking (PLUG-IN Only) 0237.
Tap Shift
Caution
Driving with the engine at a high
rpm without upshifting while using
Tap Shift, could damage the vehicle.
Always upshift when necessary
while using Tap Shift.
If equipped, vehicles with Tap Shift
have controls on the back of the
steering wheel to manually shift the
automatic transmission.
To enter Permanent Tap Shift Mode: 1. Move the shift lever from D (Drive) to M (Manual Mode).
While in Tap Shift Mode, the M
on the PRNDM section of the
instrument cluster will become
highlighted, and the current gear
is indicated.
2. Tap the left control toward the driver to downshift, and the right
control toward the driver to
upshift. To shift to the lowest
available gear, press and hold the
left control.
3. To exit, move the shift lever back to D (Drive).
With the shift lever in D (Drive) and
not in Permanent Tap Shift Mode, the
Tap Shift controls will activate a
temporary tap manual shift mode,
allowing the transmission to be
manually shifted. The vehicle exits
Temporary Tap Shift Mode after the
accelerator pedal is steady for six seconds. Temporary Tap Shift
Mode holds a gear longer without
exiting when coasting, to provide
powertrain braking. The Temporary
Tap Shift Mode can also be
deactivated by holding the right
upshift control briefly.
While using Tap Shift, the vehicle will
have firmer, quicker shifting. You can
use this for sport driving or when
climbing or descending hills, to stay in
gear longer, or to downshift for more
power or engine braking.
The transmission will only allow you
to shift into gears appropriate for the
vehicle speed and engine revolutions
per minute (rpm). The transmission
will not downshift if the engine rpm is
too high in the next lower gear,
or upshift to the next higher gear
when the maximum engine rpm is
reached.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 241
To turn off only TCS, press and
release
Y. The Traction Off lighti
displays in the instrument cluster and
the appropriate DIC message displays.
To turn TCS on again, press and
release
Y. The Traction Off lighti
displayed in the instrument cluster
will turn off.
To turn off both TCS and StabiliTrak,
press and hold
Yuntil the Traction
Off light
iand StabiliTrak OFF
light
gcome on and stay on in the
instrument cluster. The appropriate
DIC message displays.
To turn TCS and StabiliTrak on again,
press and release
Y. The Traction Off
light
iand StabiliTrak OFF lightg
in the instrument cluster turn off.
Adding accessories can affect vehicle
performance. See Accessories and
Modifications 0298.
Driver Mode Control
(Gasoline Only)
For PLUG-IN vehicles, see Driver
Selected Operating Modes (PLUG-IN
Only) 0226.
Driver Mode Control attempts to add
a sportier feel, provide a more
comfortable ride, or assist in different
weather conditions or terrain. This
system simultaneously changes the
software calibration of various
sub-systems. Depending on the option
package, available features, and mode
selected, the suspension, steering, and
powertrain will change calibrations to
achieve the desired mode
characteristics.
Press and release MODE to activate
the mode menu in the instrument
cluster. The first press of the button
will show the current mode.
Subsequent presses will scroll through
the available modes. Select a new
setting whenever driving conditions
change. The following modes are
available:
Tour Mode
Use for normal city and highway
driving to provide a smooth, soft ride.
If the vehicle is equipped with AWD,
the Tour Mode is in between the Sport
and the Snow/Ice Modes for a more
balanced feel.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/15/17
334 VEHICLE CARE
FusesUsage
20 High-beam headlamp relay
21 Air conditioning clutch
22 –
23 Coolant heater control module
24 Coolant pump
25 Coolant pump relay
26 Hi fuel
27 Steering column lock
28 Rear heated seats
29 Front heated seats
30 –
31 LED lighting battery
32 Air conditioning control module
33 AIR solenoid
34 –
35 Engine control module Fuses
Usage
36 Engine control module 2
37 Coolant pump/ Ignition coils–odd
38 Ignition coils–even/ Non walk 2
39 Non walk
40 Instrument cluster
41 –
42 Fuel pump power module
43 Instrument panel body/Ignition
44 Aeroshutter
45 Washer
46 Front sensor
47 Left cornering LED
48 AIR solenoid relay
49 Air pump relay
50 Engine control module relay
51 Wiper speed relay Fuses
Usage
52 Wiper control relay
53 Headlamp control relay
54 –
55 –
56 Air pump
57 –
58 Instrument panel electronic center
59 –
60 Anitlock brake system pump
61 Front wiper
62 Headlamp leveling
63 Electric brake booster module
64 –
65 –
66 Transfer case control module
67 Electric brake booster

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/15/17
336 VEHICLE CARE
FusesUsage
F1 Power outlet
F2 Visor
F3 Front blower
F4 Body control module 8
F5 Power steering column Fuses
Usage
F6 Column lock
F7 Glove box door
F8 Front heated seat module
F9 Sensing and diagnostic module
F10 Body control module 4 Fuses
Usage
F11 Body control module 3
F12 Data link connector
F13 –
F14 –
F15 Rear vision camera
F16 Display
F17 Heating, ventilation, and air conditioning
control
F18 OnStar
F19 –
F20 –
F21 Traction power inverter 2
F22 Infotainment 2
F23 Central gateway module
F24 Infotainment 1
F25 Video processing module

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/15/17
VEHICLE CARE 383
Caution
Using petroleum-based tire dressing
products on the vehicle may
damage the paint finish and/or
tires. When applying a tire dressing,
always wipe off any overspray from
all painted surfaces on the vehicle.
Wheels and Trim—Aluminum or
Chrome
Use a soft, clean cloth with mild soap
and water to clean the wheels. After
rinsing thoroughly with clean water,
dry with a soft, clean towel. A wax
may then be applied.
Caution
Chrome wheels and other chrome
trim may be damaged if the vehicle
is not washed after driving on roads
that have been sprayed with
magnesium, calcium, or sodium
chloride. These chlorides are used
on roads for conditions such as ice
and dust. Always wash the chrome
with soap and water after exposure.
Caution
To avoid surface damage, do not
use strong soaps, chemicals,
abrasive polishes, cleaners, brushes,
or cleaners that contain acid on
aluminum or chrome-plated wheels.
Use only approved cleaners. Also,
never drive a vehicle with
aluminum or chrome-plated wheels
through an automatic car wash that
uses silicone carbide tire cleaning
brushes. Damage could occur and
the repairs would not be covered by
the vehicle warranty.
Brake System
Visually inspect brake lines and hoses
for proper hook-up, binding, leaks,
cracks, chafing, etc. Inspect disc brake
pads for wear and rotors for surface
condition. Inspect brake linings/shoes
for wear or cracks. Inspect all other
brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering, suspension,
and chassis components for damaged,
loose, or missing parts or signs of
wear at least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders, hood
hinges, liftgate hinges, and the steel
fuel door hinges, unless the
components are plastic. Applying
silicone grease on weatherstrips with a
clean cloth will make them last
longer, seal better, and not stick or
squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any corrosive
materials from the underbody. Take
care to thoroughly clean any areas
where mud and other debris can
collect.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
436 INDEX
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Front Seats Heated and Ventilated . . . . . . . . . . . . . 72
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Economy Driving . . . . . . . . . . . . . . . . . . . 32
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 290
Filling the Tank . . . . . . . . . . . . . . . . . . . 288
Foreign Countries . . . . . . . . . . . . . . . . . 287
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Low Fuel Warning Light . . . . . . . . . 150
Requirements, California . . . . . . . . . 287
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Fuses and Circuit Breakers . . . . . . . 331
Instrument Panel Fuse Block . . . . 335
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
G
Garage Door Opener . . . . . . . . . . . . . . . . 179Programming . . . . . . . . . . . . . . . . . . . . . . 179
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 328 Gauges
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Engine Coolant Temperature . . . . 139
Engine Oil Pressure . . . . . . . . . . . . . . . 137
Engine Oil Temperature . . . . . . . . . . 138
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Power Indicator . . . . . . . . . . . . . . . . . . . 136
Speedometer . . . . . . . . . . . . . . . . . . . . . . 134
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 134
Trip Odometer . . . . . . . . . . . . . . . . . . . . 134
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 126
General Information
Service and Maintenance . . . . . . . . 388
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 297
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
H
Hazard Warning Flashers . . . . . . . . . . 186
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 65
Head-up Display . . . . . . . . . . . . . . . . . . . . 165
Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 185
Bulb Replacement . . . . . . . . . . . . . . . . 330 Headlamps (cont'd)
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 185
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 185
High-Beam On Light . . . . . . . . . . . . . . 151
High/Low Beam Changer . . . . . . . . . 185
Lamps On Reminder . . . . . . . . . . . . . . 151
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . 119
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Heated and Ventilated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 55
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Heating . . . . . . . . . . . . . . . . . . . . . . . . .191, 197
High Voltage Battery Gauge . . . . . . . 135
High-Beam On Light . . . . . . . . . . . . . . . . 151
High-Speed Operation . . . . . . . . . . . . . . 349
Hill and Mountain Roads . . . . . . . . . . 211
Hill Start Assist (HSA) . . . . . . . . . . . . . 237
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
How to Wear Seat Belts Properly . . . 79
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . .191, 197