2018 CADILLAC CT6 fuel pump

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
136 INSTRUMENTS AND CONTROLS
Here are four things that some owners
ask about. None of these show a
problem with the fuel gauge:
.At the service station, the fuel
pump shuts off before the gauge
reads full.
. It takes a little more or less fuel to
fill up than the gauge indicated.
For example, the gauge may have
indicated the tank was half full,
but it actually took a little more or
less than half the tank's capacity
to fill the tank.
. The gauge moves a little while
turning a corner or speeding up.
. The gauge takes a few seconds to
stabilize after the ignition is
turned on, and goes back to empty
when the ignition is turned off.Power Indicator Gauge
(PLUG-IN Only)
The power gauge shows the vehicle’s
total power consumption coming from
the engine and/or battery.
When the power indicator is green,
battery power is being regenerated.
The blue area indicates power
provided by the engine and/or battery.
The yellow area shows high power
usage. Operating the vehicle closer to
the zero power position both during
acceleration and braking will result in
higher efficiency.
Boost Gauge (Performance
Configuration Only)
Metric

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 217
.Check engine oil with every
refueling and add if necessary. Oil
and fuel consumption may be
higher than normal during the
first 2 400 km (1,500 mi).
. To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
300 km (200 mi). New tires do not
have maximum traction and may
tend to slip.
. New brake linings also need a
break–in period. Avoid making
hard stops during the first
300 km (200 mi). This is
recommended every time brake
linings are replaced.Ignition Positions
The vehicle has an electronic keyless
ignition with pushbutton start.
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference to
the Keyless Access system. See Remote
Keyless Entry (RKE) System Operation
0 35.
To shift out of P (Park), the ignition
must be on or in ACC/ACCESSORY,
and the brake pedal must be applied. Stopping the Engine/OFF (No
Indicator Lights) :
When the vehicle
is stopped, press ENGINE START/
STOP once to turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory Power
(RAP) 0224.
If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display a message in
the Driver Information Center (DIC).
When the vehicle is shifted into
P (Park), the ignition will turn off.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake and
steering systems and disable the
airbags.
If the vehicle must be shut off in an
emergency: 1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
288 DRIVING AND OPERATING
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.. To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone while
refueling.
. Do not reenter the vehicle
while pumping fuel.
. Keep children away from the
fuel pump and never let
children pump fuel.
(Continued)
Warning (Continued)
.Fuel can spray out if the
refueling nozzle is inserted
too quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
weather. Insert the refueling
nozzle slowly and wait for any
hiss noise to stop prior to
beginning to flow fuel.
Opening the Fuel Door
(Gasoline Only)
To open the fuel door, push and
release the rearward center edge of
the door. If equipped, the fuel door is
locked when the vehicle doors are
locked. Press
Kon the RKE
transmitter to unlock.
Opening the Fuel Door
(PLUG-IN Only)
To refuel the PLUG-IN vehicle:
1. Press the fuel door button on the driver door for one second.
A WAIT TO REFUEL message
displays on the Driver
Information Center.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 289
2. When the READY TO REFUELmessage displays, the fuel door
will unlock. To open the fuel
door, push and release the
rearward center edge of the door.
3. Complete refueling within 30 minutes of pressing the fuel
door button on the driver door.
If refueling after more than
30 minutes, press the fuel door
button again.
4. After refueling, close the fuel door.
Refueling the Vehicle
The vehicle has a capless fuel system
and does not have a fuel cap. The
filling nozzle must be fully inserted
and latched prior to starting fuel flow.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:
(Continued)
Warning (Continued)
.Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Potential fuel fires.
Be careful not to spill fuel. Wait a few
seconds after you have finished
pumping before removing the nozzle.
Clean fuel from painted surfaces as
soon as possible. See Exterior Care
0 380.
{Warning
If a fire starts while you are
refueling, do not remove the nozzle.
Shut off the flow of fuel by shutting
off the pump or by notifying the
station attendant. Leave the area
immediately.
Filling the Tank with a Portable
Gas Can
If the vehicle runs out of fuel and
must be filled from a portable gas can:
1. Locate the capless funnel
adapter from within the vehicle.
2. Insert and latch the funnel into the capless fuel system.
{Warning
Attempting to refuel without using
the funnel adapter may cause fuel
spillage and damage the capless
fuel system. This could cause a fire
and you or others could be badly
burned and the vehicle could be
damaged.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
290 DRIVING AND OPERATING
3. Remove and clean the funneladapter and return it to the
storage location.
Filling a Portable Fuel
Container
{Warning
Filling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either by
static electricity or other means.
You or others could be badly
burned and the vehicle could be
damaged. Always:
. Use approved fuel containers.
. Remove the container from
the vehicle, trunk, or pickup
bed before filling.
. Place the container on the
ground.
. Place the nozzle inside the fill
opening of the container
before dispensing fuel, and
(Continued)
Warning (Continued)
keep it in contact with the fill
opening until filling is
complete.
. Fill the container no more
than 95% full to allow for
expansion.
. Do not smoke, light matches,
or use lighters while
pumping fuel.
. Avoid using cell phones or
other electronic devices.
Trailer Towing
General Towing
Information
Only use towing equipment that has
been designed for the vehicle. Contact
your dealer or trailering dealer for
assistance with preparing the vehicle
for towing a trailer. Read the entire
section before towing a trailer.
For towing a disabled vehicle, see
Towing the Vehicle 0376. For towing
the vehicle behind another vehicle
such as a motor home, see
Recreational Vehicle Towing 0378.
Driving Characteristics and
Towing Tips
Driving with a Trailer
When towing a trailer:
.
Become familiar with the local
laws that apply to trailer towing.
. Do not tow a trailer during the
first 2 414 km (1,500 mi) to
prevent damage to the engine,
axle, or other parts.

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
VEHICLE CARE 339
FusesUsage
F28 Amplifier
F29 Sunroof
F30 Body control module 2
F31 Body control module 6
F32 Exterior heated mirrors
F33 Right window
F34 Power trunk module
F35 On-board charging module
F36 Alarm siren module
F37 DC AC inverter
F38 Rear blower
F39 Fuel pump power
F40 –
F41 Rear seat power outlet
F42 Left rear memory seat
F43 – Fuses
Usage
F44 Rear closure
F45 Auxiliary audio/ Video/Radio
F46 External object calculating/Side blind
zone alert/Radar
short range sensor
F47 –
F48 Right front seat
F49 Memory bolster module
F50 Body control module 1
F51 Transmission control module
F52 Parking assist
F53 Ventilated seats
F54 Headliner
F55 Front memory seat module
F56 Evaporative emissions leak check
module Fuses
Usage
F57 Voltage current temperature module
F58 –
F59 Engine control module battery
F60 Right motorized seat belt pretensioner
F61 Parking lamps
F62 –
F63 –
F64 Engine control module ignition
F65 Rear window sunshade
F66 Rear vision camera/ Interior rearview
mirror
F67 DC DC converter/Air quality sensor
F68 Damping control module
F69 Television tuner module

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/15/17
340 VEHICLE CARE
FusesUsage
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
Relays Usage
R1 Rear seat power outlet
R2 Fuel pump
R3 Run/CrankWheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See the
warranty manual for information
regarding the tire warranty and
where to get service. For
additional information refer to the
tire manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much flexing.
There could be a blowout
and a serious crash. See
Vehicle Load Limits 0213.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could cause
serious injury. Check all
tires frequently to
maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are more
likely to be cut, punctured,
or broken by a sudden
impact —such as when
hitting a pothole. Keep
tires at the recommended
pressure.
.Worn or old tires can
cause a crash. If the tread
is badly worn,
replace them.
(Continued)