2020 CADILLAC XT5 cooling system

336 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Normal
(1) 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.
(2) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(3) 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 0259.
(4) 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.
(5)
Or every five years, whichever
comes first. See Cooling System0260.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0267.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0270.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0271.
(10) Replace air conditioning
desiccant every seven years.

SERVICE AND MAINTENANCE 337
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 and perform Required Services. Check
engine oil level and oil life percentage. Change
engine oil and filter, if needed. Check engine air
filter life percentage and status. Change engine air
filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (1)@ @@@@@
Inspect evaporative control system. (2)@ @@
If the vehicle is not equipped with the engine air
filter life system, replace engine air cleaner filter. (3)@@@
Change automatic transmission fluid.@@@
Replace spark plugs, if equipped with 2.0L engine.
Inspect spark plug wires and/or boots.@ @
Replace spark plugs, if equipped with 3.6L engine.
Inspect spark plug wires and/or boots.@
Change rear axle fluid, if equipped with AWD. (4)@ @
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@@
Replace air conditioning desiccant. (10)

338 SERVICE AND MAINTENANCE
Footnotes—Maintenance Schedule
Additional Required Services -
Severe
(1) 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.
(2) Visually check all fuel and vapor
lines and hoses for proper attachment,
connection, routing, and condition.
(3) 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 0259.
(4) 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.
(5)
Or every five years, whichever
comes first. See Cooling System0260.
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0267.
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0270.
(9) Or every 10 years, whichever
comes first. See Gas Strut(s)0271.
(10) 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
0 323.

342 SERVICE AND MAINTENANCE
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or 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 System 0260.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil0255.
Fuel Additive Fuel System Treatment PLUS (Part No. 88865595).
Hood and Door Hinges, Key Lock Cylinder Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19353127).
Power Liftgate Actuator Ball Joint, Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in Canada 89021674) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Weatherstrip Conditioning Weatherstrip lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

346 TECHNICAL DATA
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants
0 342 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.
Engine Cooling System* 2.0L L4 Engine 9.0 L 9.5 qt
3.6L V6 Engine 10.6 L 11.2 qt
3.6L V6 Engine with Heavy Duty Cooling System 10.5 L 11.1 qt
Engine Oil with Filter 2.0L L4 Engine 5.0 L 5.3 qt
3.6L V6 Engine 5.7 L 6.0 qt
Fuel Tank Front-Wheel Drive 73.4 L 19.4 gal
All-Wheel Drive 82.1 L 21.7 gal
Wheel Nut Torque 190 Y140 lb ft

TECHNICAL DATA 347
ApplicationCapacities
Metric English
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
2.0L L4 Engine (LSY) 4Automatic0.75–0.90 mm (0.030–0.035 in)
3.6L V6 Engine (LGX) SAutomatic0.80–0.90 mm (0.031–0.035 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage the
spark plug.

374 INDEX
Cluster, Instrument . . . . . . . . . . . . . . . . . 108
Collision Damage Repair . . . . . . . . . . . 356
Compact Spare Tire . . . . . . . . . . . . . . . . . 315
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Compressor Kit, Tire Sealant . . . . . . . 304
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . 370
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 371
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 369
Connections Connected Services . . . . . . . . . . . . . . . 370
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Control of a Vehicle . . . . . . . . . . . . . . . . 160
Convenience Net . . . . . . . . . . . . . . . . . . . . . 97
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 33
Coolant Engine Temperature Gauge . . . . . . 112
Engine Temperature Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Cooling . . . . . . . . . . . . . . . . . . . . . . . . .148, 154
Cooling System . . . . . . . . . . . . . . . . . . . . . 260
Cornering Lamps . . . . . . . . . . . . . . . . . . . 144
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 144 Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 196 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Cruise Control, Adaptive . . . . . . . . . . . 198
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Customer Assistance . . . . . . . . . . . . . . . 351
Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Text Telephone (TTY) Users . . . . . 351
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . . . . . 358
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . 360
D
Damage Repair, Collision . . . . . . . . . . . 356
Danger, Warning, and Caution . . . . . . . . 2
Data Collection Infotainment System . . . . . . . . . . . . . 362
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Data Recorders, Event . . . . . . . . . . . . . . 361
Daytime Running Lamps (DRL) . . . 142
Defensive Driving . . . . . . . . . . . . . . . . . . . 160
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 21 Diagnostics
Connected Services . . . . . . . . . . . . . . . 371
Distracted Driving . . . . . . . . . . . . . . . . . . 159
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 144
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 124
Delayed Locking . . . . . . . . . . . . . . . . . . . . 21
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 21
Drive Belt Routing, Engine . . . . . . . . . 348
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 190, 269
Driver Assistance Systems . . . . . . . . . 207
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control . . . . . . . . . . . . . . . . 195
Driver Mode Control Light . . . . . . . . . 121
Driving
Assistance Systems . . . . . . . . . . . . . . . 217
Better Fuel Economy . . . . . . . . . . . . . 159
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 234
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Hill and Mountain Roads . . . . . . . . 168
If the Vehicle is Stuck . . . . . . . . . . . . 170
Loss of Control . . . . . . . . . . . . . . . . . . . . 162
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

INDEX 375
Driving (cont'd)Off-Road Recovery . . . . . . . . . . . . . . . . 162
Vehicle Load Limits . . . . . . . . . . . . . . 170
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 167
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 148
E
Electric Brake Boost . . . . . . . . . . . . . . . . 190
Electric Parking Brake . . . . . . . . . . . . . . 191
Electric Parking Brake Light . . . . . . . 118
Electrical Equipment, Add-On . . . . . 246
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Fuses and Circuit Breakers . . . . . . . 274
Instrument Panel Fuse Block . . . . 277
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 259
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Compartment Overview . . . . . . . . . . 252 Engine (cont'd)
Coolant Temperature Gauge . . . . . 112
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . . . . . 121
Cooling System . . . . . . . . . . . . . . . . . . . 260
Drive Belt Routing . . . . . . . . . . . . . . . . 348
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Oil Life System . . . . . . . . . . . . . . . . . . . . 257
Oil Pressure Light . . . . . . . . . . . . . . . . . 122
Overheating . . . . . . . . . . . . . . . . . . . . . . . 264
Power Messages . . . . . . . . . . . . . . . . . . 131
Running While Parked . . . . . . . . . . . 183
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Engine Air Filter Life System . . . . . . 259
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 145
Equipment, Towing . . . . . . . . . . . . . . . . . 241
Event Data Recorders . . . . . . . . . . . . . . 361
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 145
Extended Parking . . . . . . . . . . . . . . . . . . . 183
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . . . . 140
Exterior Lamps Off Reminder . . . . . . 142
Exterior Lighting Battery Saver . . . . 146
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 259
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 142
Flashers, Hazard Warning . . . . . . . . . . 143
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Fluid Automatic Transmission . . . . . . . . . 258
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 34
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Heated and Ventilated . . . . . . . . . . . . . 49
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Economy, Driving for Better . . . . . 159
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling the Tank . . . . . . . . . . . . . . . . . . . 231