2021 CADILLAC XT5 fuel door

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
DRIVING AND OPERATING 227
Auto Engine Stop/Start
When the brakes are applied and the
vehicle is at a complete stop, the
engine may turn off. When stopped,
the tachometer displays AUTO STOP.
SeeTachometer 0105. When the brake
pedal is released or the accelerator
pedal is pressed, the engine will
restart.
To maintain vehicle performance,
other conditions may cause the engine
to automatically restart before the
brake pedal is released.
Auto Stops may not occur and/or Auto
Starts may occur because:
.The climate control settings require
the engine to be running to cool or
heat the vehicle interior.
.The vehicle battery charge is low.
.The vehicle battery has recently
been disconnected.
.Minimum vehicle speed has not
been reached since the last
Auto Stop.
.The accelerator pedal is pressed.
.The engine or transmission is not at
the required operating temperature.
.The outside temperature is not in
the required operating range.
.The vehicle transmission is shifted
out of D (Drive) to any gear other
than P (Park).
.Driver modes have been selected.
.The vehicle is on a steep hill or
grade.
.The driver door has been opened or
the driver seat belt has been
unbuckled.
.The hood has been opened.
.The Auto Stop has reached the
maximum allowed time.
Auto Stop Disable Switch
The automatic engine Stop/Start
feature can be disabled and enabled
by touching the
hsymbol on the
center stack. Auto Stop is enabled
each time you start the vehicle.
When the light next to the
his
illuminated, the system is enabled.
Engine Heater
The engine heater can provide easier
starting and better fuel economy
during engine warm-up in cold
weather conditions at or below −18 °
C (0 °F). Vehicles with an engine
heater should be plugged in at least
four hours before starting. An internal
thermostat in the plug-end of the cord
may exist, which will prevent engine
heater operation at temperatures
above −18 °C (0 °F).
{Warning
Do not plug in the engine block
heater while the vehicle is parked in
a garage or under a carport.
Property damage or personal injury
(Continued)

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
DRIVING AND OPERATING 277
Caution (Continued)
.Fuel containing metals such as
methylcyclopentadienyl
manganese tricarbonyl (MMT),
which can damage the emissions
control system and spark plugs.
.Fuel with a posted octane rating
of less than the recommended
fuel. Using this fuel will lower
fuel economy and performance,
and may decrease the life of the
emissions catalyst.
Fuels in Foreign Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock index
(AKI). For fuel not to use in a foreign
country, seeProhibited Fuels 0276.
Fuel Additives
TOP TIER Detergent Gasoline is highly
recommended for use with your
vehicle. If your country does not have
TOP TIER Detergent Gasoline, add
ACDelco Fuel System Treatment Plus
−Gasoline to the vehicle’s gasoline fuel
tank at every oil change or 15 000 km
(9,000 mi), whichever occurs first. TOP TIER Detergent Gasoline and ACDelco
Fuel System Treatment Plus−Gasoline
will help keep your vehicle’s engine
fuel deposit free and performing
optimally.
Filling the Tank
An arrow on the fuel gauge indicates
which side of the vehicle the fuel door
is on. See
Fuel Gauge 0105.
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
Follow these guidelines 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.
(Continued)
Warning (Continued)
.Do not leave the fuel pump
unattended.
.Avoid using electronic devices
while refueling.
.Do not re-enter the vehicle while
pumping fuel.
.Keep children away from the fuel
pump and never let children
pump fuel.
.Before touching the fill nozzle,
touch a metallic object to
discharge static electricity from
your body.
.Fuel can spray out if the fill
nozzle is inserted too quickly.
This spray can happen if the
tank is nearly full, and is more
likely in hot weather. Insert the
fill nozzle slowly and wait for any
hiss noise to stop before
beginning to flow fuel.
If equipped, the fuel door unlocks
when the vehicle doors are unlocked.
See Remote Keyless Entry (RKE) System
Operation 07.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
278 DRIVING AND OPERATING
To open the fuel door, push and
release the rearward center edge of
the door.
The capless refueling system does not
have a fuel cap. Fully insert and latch
the fill nozzle, then begin fueling.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:
.Vehicle performance issues,
including engine stalling and
damage to the fuel system.
.Fuel spills.(Continued)
Warning (Continued)
.Under certain conditions, fuel
fires.
Be careful not to spill fuel. Wait
five seconds after you have finished
pumping before removing the fill
nozzle. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care 0364. Push the fuel door
closed until it latches.
{Warning
If a fire starts while you are
refueling, do not remove the fill
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 Fuel
Container
If the vehicle runs out of fuel and
must be filled from a portable fuel
container:
1. Locate the capless funnel adapter in the rear cargo area under the
load floor tray.
2. Insert and latch the funnel into the capless fuel system.
{Warning
Attempting to refuel from a
portable fuel container without
using the funnel adapter may cause
fuel spillage and damage the
capless fuel system. This could
cause a fire. You or others could be
badly burned and the vehicle could
be damaged.
3. Remove and clean the funnel adapter and return it to the storage
location.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
324 VEHICLE CARE
FusesUsage
F19 Ventilated seats/Left front heated seats/
Run/Crank
F20 –
F21 Trailer connector
F22 –
F23 –
F24 Passenger window switch
F25 –
F26 Trailer brake
F27 Driver ventilated seat/ Lumbar
F28 Passive entry/Passive start
F29 –
F30 Canister vent
F31 Rechargeable energy storage system
F32 Heated mirror
F33 –
F34 Liftgate module Fuses
Usage
F35 Fuel system control module
F36 Passenger ventilated seat/Lumbar
F37 External amplifier hybrid
F38 Window module
F39 Rear closure
F40 Memory seat module
F41 Automatic occupancy sensor
F42 Trailer battery 2
F43 Blower console
F44 –
F45 Liftgate motor
F46 Rear heated seats
F47 –
F48 Glass break sensor
F49 –
F50 –
F51 – Fuses
Usage
F52 Active dampening system module
F53 –
F54 External object calculating/Side blind
zone alert
F55 –
F56 Universal garage door opener/Rain sensor
F57 Theft deterrent
Circuit
Breakers Usage
CB1 –
CB2 –
CB3 Rear auxiliary power outlet
Relays Usage
K1 –
K2 –

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
368 VEHICLE CARE
Inspect power steering for proper
electrical connections, binding, 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.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminatethe fluid. Contaminated fluid will
decrease the life of the transfer case
and/or axles and should be replaced.
Sheet Metal Damage
If the vehicle is damaged and requires
sheet metal repair or replacement,
make sure the body repair shop
applies anti-corrosion material to
parts repaired or replaced to restore
corrosion protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon and
attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregulardark spots etched into the paint
surface. See
“Finish Care”previously in
this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle’s interior.
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild soap
solution, immediately remove hand
lotions, sunscreen, and insect
repellent from all interior surfaces or
permanent damage may result.
Use cleaners specifically designed for
the surfaces being cleaned to prevent
permanent damage. Apply all cleaners
directly to the cleaning cloth. Do not
spray cleaners on any switches or
controls. Remove cleaners quickly.
Before using cleaners, read and follow
all safety instructions on the label.
While cleaning the interior, open the
doors and windows to get proper
ventilation.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
SERVICE AND MAINTENANCE 383
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be
obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Chassis Lubrication Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System0304.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil0299.
Fuel Additive Fuel System Treatment PLUS.
Hood and Door Hinges, Key Lock Cylinder Multi-Purpose Lubricant, See your dealer.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid.
Power Liftgate Actuator Ball Joint, Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Weatherstrip Conditioning Weatherstrip lubricant. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
412 CONNECTED SERVICES
MyCadillac Mobile App (If Available)
Download the myCadillac mobile app
to compatible Apple and Android
smartphones. Cadillac users can
access the following services from a
smartphone:
.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 destinations 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.
.Locate a dealer and schedule
service.
.Request Roadside Service.
.Set a parking reminder with pin
drop, take a photo, make a note,
and set a timer.
.Connect with Cadillac on social
media.
Features are subject to change. For
myCadillac mobile app information
and compatibility, see my.cadillac.com.
An active OnStar or connected service
plan may be required. A compatible
device, factory-installed remote start,
and power locks are required. Data
rates apply. See www.onstar.com for
details and system limitations.
Remote Services
Contact an OnStar Advisor to unlock
the doors or sound the horn and flash
the lamps.
Marketplace
OnStar Advisors can provide offers
from restaurants and retailers on your
route, help locate hotels, or book a
room. These services vary by market.
Diagnostics
By monitoring and reporting on the
vehicle’s key systems, OnStar
Advanced Diagnostics, if equipped,
provides a way to keep up on
maintenance. Capabilities vary by model. See www.onstar.com for details
and system limitations. Features are
subject to change. For updates on
feature capabilities, see
my.cadillac.com. Message and data
rates may apply.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
416 INDEX
Door (cont'd)Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . . . . 391
Drive Systems All-Wheel Drive . . . . . . . . . . . . . 237, 312
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Driver Assistance Systems . . . . . . . . . 254
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 117
Driver Mode Control . . . . . . . . . . . . . . . . 242
Driver Mode Control Light . . . . . . . . . 114
Driving Assistance Systems . . . . . . . . . . . . . . . 264
Better Fuel Economy . . . . . . . . . . . . . 210
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 279
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Hill and Mountain Roads . . . . . . . . 218
If the Vehicle is Stuck . . . . . . . . . . . . 220
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Loss of Control . . . . . . . . . . . . . . . . . . . . 213
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Off-Road Recovery . . . . . . . . . . . . . . . . 213
Vehicle Load Limits . . . . . . . . . . . . . . 220
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 217
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . . . . . 201
E
Electric Brake Boost . . . . . . . . . . . . . . . . 237
Electric Parking Brake . . . . . . . . . . . . . . 238
Electric Parking Brake Light . . . . . . . 110
Electrical Equipment, Add-On . . . . . 290
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Fuses and Circuit Breakers . . . . . . . 316
Instrument Panel Fuse Block . . . . 320
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 303
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 108
Compartment Overview . . . . . . . . . . 296
Coolant Temperature Gauge . . . . . 106
Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . 114
Cooling System . . . . . . . . . . . . . . . . . . . 304
Drive Belt Routing . . . . . . . . . . . . . . . . 391 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Oil Life System . . . . . . . . . . . . . . . . . . . . 301
Oil Pressure Light . . . . . . . . . . . . . . . . . 115
Overheating . . . . . . . . . . . . . . . . . . . . . . . 308
Power Messages . . . . . . . . . . . . . . . . . . 123
Running While Parked . . . . . . . . . . . 231
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Engine Air Filter Life System . . . . . . 302
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 137
Equipment, Towing . . . . . . . . . . . . . . . . . 286
Event Data Recorders . . . . . . . . . . . . . . 403
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 137
Extended Parking . . . . . . . . . . . . . . . . . . . 231
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 54
Exterior Lamp Controls . . . . . . . . . . . . 132
Exterior Lamps Off Reminder . . . . . . 134
Exterior Lighting Battery Saver . . . . 138
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 303
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 134
Flashers, Hazard Warning . . . . . . . . . . 135
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 371