Oil CADILLAC CT5 2020 Owner's Guide

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
310 SERVICE AND MAINTENANCE
Maintenance Schedule
Additional Required Services -
Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires, if recommended for the vehicle, and
perform Required Services. (1) Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (4)@@@
Replace spark plugs. Inspect spark plug wires and/or
boots.@ @
Change transfer case fluid, if equipped with
AWD. (5)@
Change rear axle fluid, if equipped with limited slip
differential. (5)@@@
Change rear axle fluid, without limited slip
differential. (5)@
Change front axle fluid, if equipped with AWD. (5)@
Drain and fill engine cooling system. (6)@
Visually inspect accessory drive belts. (7)@
Replace brake fluid. (8)
Replace windshield wiper blades. (9)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas
struts. (10)@ @
Replace air conditioning desiccant. (11)

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
SERVICE AND MAINTENANCE 311
Footnotes—Maintenance Schedule
Additional Required Services -
Normal
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0285.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter. (3)
Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0250.
(5) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(6) Or every five years, whichever
comes first. See Cooling System0251. (7)
Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0258.
(9) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0261.
(10) Or every 10 years, whichever
comes first. See Gas Strut(s)0262.
(11) Replace air conditioning
desiccant every seven years.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
312 SERVICE AND MAINTENANCE
Maintenance Schedule
Additional Required Services -
Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires, if recommended for the vehicle, and
perform Required Services. (1) Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (4)@@@
Replace spark plugs. Inspect spark plug wires and/or
boots.@ @
Change automatic transmission fluid and filter.@@@
Change transfer case fluid, if equipped with
AWD. (5)@@@
Change rear axle fluid, if equipped with limited slip
differential. (5)@@@
Change rear axle fluid, without limited slip
differential. (5)@ @
Change front axle fluid, if equipped with AWD. (5)@@@
Drain and fill engine cooling system. (6)@
Visually inspect accessory drive belts. (7)@
Replace brake fluid. (8)
Replace windshield wiper blades. (9)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas
struts. (10)@ @
Replace air conditioning desiccant. (11)

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
SERVICE AND MAINTENANCE 313
Footnotes—Maintenance Schedule
Additional Required Services -
Severe
(1) Vehicles with different size front
and rear tires do not have tire
rotation. See Tire Rotation0285.
(2) Or every two years, whichever
comes first. More frequent passenger
compartment air filter replacement
may be needed if driving in areas with
heavy traffic, poor air quality, high
dust levels, or environmental
allergens. Passenger compartment air
filter replacement may also be needed
if there is reduced airf low, window
fogging, or odors. Your GM dealer can
help determine when to replace the
filter.
(3) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(4) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0250. (5)
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate
the transfer case fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and should
be replaced.
(6) Or every five years, whichever
comes first. See Cooling System0251.
(7) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(8) Replace brake fluid every five
years. See Brake Fluid 0258.
(9) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0261.
(10) Or every 10 years, whichever
comes first. See Gas Strut(s)0262.
(11) Replace air conditioning
desiccant every seven years.Special Application
Services
. Severe Commercial Use Vehicles
Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 297.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
314 SERVICE AND MAINTENANCE
Additional Maintenance
and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer
perform these services—their trained
dealer technicians know your vehicle
best. Your dealer can also perform a
thorough assessment with a
multi-point inspection to recommend
when your vehicle may need
attention.
The following list is intended to
explain the services and conditions to
look for that may indicate services are
required. Battery
The 12-volt battery supplies power to
start the engine and operate any
additional electrical accessories.
.
To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of cracking
or splitting.
. Trained dealer technicians have
access to tools and equipment to
inspect the belts and recommend
adjustment or replacement when
necessary. Brakes
Brakes stop the vehicle and are crucial
to safe driving.
.
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment to
inspect the brakes and recommend
quality parts engineered for the
vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids
and Lubricants 0317 for GM approved
fluids.
. Engine oil and windshield washer
fluid levels should be checked at
every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be filled.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
SERVICE AND MAINTENANCE 317
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 ULV Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0251.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil0246.
Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube. See your dealer.
Rear Axle/Front Axle (All-Wheel Drive) See your dealer. Transfer Case (All-Wheel Drive) See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
318 SERVICE AND MAINTENANCE
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 2.0L L4 Engine 84498926 A3245C
3.0L V6 Engine (Driver Side) 84335354 A3235C
3.0L V6 Engine (Passenger Side) 84335354 A3235C
Engine Oil Filter 2.0L L4 Engine 55495105 PF66
3.0L V6 Engine 19330000 PF63E
Passenger Compartment Air Filter Particulate 13508023 CF185
Carbon 23195727 CF184
Spark Plugs 2.0L L4 Engine 55504354 41-103-IP
3.0L V6 Engine 12650283 41-131
Wiper Blades Driver Side –60 cm (23.62 in) 84566977 —
Passenger Side –45 cm (17.72 in) 84574892 —

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
TECHNICAL DATA 321
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants
0 317 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Brake Fluid 0.4 L 0.4 qt
Engine Cooling System* 2.0L L4 Engine 10.4 L 11.0 qt
3.0L V6 Engine with Rear Wheel Drive 12.1 L 12.8 qt
3.0L V6 Engine with All-Wheel Drive 12.3 L 13.0 qt
3.0L V6 Engine Intercoolers 3.1 L 3.3 qt
Engine Oil with Filter 2.0L L4 Engine 5.0 L 5.3 qt
3.0L V6 Engine RWD 5.7 L 6.0 qt
3.0L V6 Engine AWD 6.2 L 6.5 qt
Front Axle 0.40 L 0.42 qt

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
346 CONNECTED SERVICES
using the myCadillac mobile app,
or by contacting an OnStar Advisor.
On some vehicles, Wi-Fi can also be
managed from the Wi-Fi
Hotspot menu.
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 CT5 Owner Manual (GMNA-Localizing-U.S./Canada-13060105) -
2020 - CRC - 2/14/20
350 INDEX
E
Electric Brake Boost . . . . . . . . . . . . . . . . 180
Electric Parking Brake . . . . . . . . . . . . . . 180
Electric Parking Brake Light . . . . . . . 110
Electrical Equipment, Add-On . . . . . 236
Electrical SystemEngine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 267
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 250
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 108
Compartment Overview . . . . . . . . . . 243
Coolant Temperature Gauge . . . . . 105
Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . 113
Cooling System . . . . . . . . . . . . . . . . . . . 251
Drive Belt Routing . . . . . . . . . . . . . . . . 323
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Oil Life System . . . . . . . . . . . . . . . . . . . . 248 Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . . . . . . 115
Overheating . . . . . . . . . . . . . . . . . . . . . . . 256
Power Messages . . . . . . . . . . . . . . . . . . 123
Running While Parked . . . . . . . . . . . 173
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 139
Equipment, Towing . . . . . . . . . . . . . . . . . 235
Event Data Recorders . . . . . . . . . . . . . . 336
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 139
Extended Parking . . . . . . . . . . . . . . . . . . . 172
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 57
Exterior Lamp Controls . . . . . . . . . . . . 133
Exterior Lamps Off Reminder . . . . . . 135
Exterior Lighting Battery Saver . . . . 140
F
Filter,
Engine Air Cleaner . . . . . . . . . . . . . . . . 250
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 135
Flashers, Hazard Warning . . . . . . . . . . 136
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Fluid Automatic Transmission . . . . . . . . . 249
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 30 Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Front Seats
Heated and Ventilated . . . . . . . . . . . . . 46
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Economy, Driving for Better . . . . . 149
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 229
Filling the Tank . . . . . . . . . . . . . . . . . . . 228
Foreign Countries . . . . . . . . . . . . . . . . . 227
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Low Fuel Warning Light . . . . . . . . . 115
Management, Active . . . . . . . . . . . . . . 172
Prohibited Fuels . . . . . . . . . . . . . . . . . . 227
Recommended . . . . . . . . . . . . . . . 226, 227
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 267
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270