Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
396 SERVICE AND MAINTENANCE
since the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System0327.
Engine Air Filter Change
When the REPLACE AT NEXT OIL
CHANGE message displays, the engine
air filter should be replaced at the
next engine oil change. When the
REPLACE ENGINE AIR FILTER SOON
message displays, the engine air filter
should be replaced at the earliest
convenience. Reset the engine air
filter life system after the engine air
filter is replaced. See Engine Air Filter
Life System 0328.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years. This
service requires replacement of the
desiccant to help the longevity and
efficient operation of the air
conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km
(7,500 mi)
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation0365.
.Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil0325 and
Engine Oil Life System 0327.
.Check the air filter life percentage.
If necessary, replace the engine air
filter and reset the engine air filter
life system. See Engine Air Filter Life
System 0328.
.Check engine coolant level. See
Cooling System 0330.
.Check windshield washer fluid level.
See Washer Fluid 0335.
.Check tire inflation pressures. See
Tire Pressure 0358.
.Inspect tire wear. See Tire Inspection
0 364.
.Visually check for fluid leaks.
.Inspect brake system. See Exterior
Care 0384.
.Visually inspect steering,
suspension, and chassis
components for damage, including
cracks or tears in the rubber boots,
loose or missing parts, or signs of
wear at least once a year. See
Exterior Care 0384.
.Inspect power steering for proper
electrical connections, binding,
cracks, chafing, etc.
.Visually inspect halfshafts and drive
shafts for excessive wear, lubricant
leaks, and/or damage including:
tube dents or cracks, constant
velocity joint or universal joint
looseness, cracked or missing boots,
loose or missing boot clamps, center
bearing excessive looseness, loose or
missing fasteners, and axle seal
leaks.
.Check restraint system components.
See Safety System Check 060.
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
398 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 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)@ @@@@@
Replace spark plugs. Inspect spark plug wires and/or
boots. 2.0L Engine@ @
Replace spark plugs. Inspect spark plug wires and/or
boots. 3.6L Engine@
Change rear axle fluid, if equipped with AWD. (2)@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace front and rear wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (7)@ @
Replace air conditioning desiccant. (8)
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
400 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 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)@ @@@@@
Change automatic transmission fluid.@ @@
Replace spark plugs. Inspect spark plug wires and/or
boots. 2.0L Engine@ @
Replace spark plugs. Inspect spark plug wires and/or
boots. 3.6L Engine@
Change rear axle fluid, if equipped with AWD. (2)@ @
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace front and rear wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (7)@@
Replace air conditioning desiccant. (8)
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
SERVICE AND MAINTENANCE 401
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) 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.
(3) Or every five years, whichever
comes first. See Cooling System0330.
(4) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage; replace,
if needed. (5)
Replace brake fluid every five
years. See Brake Fluid 0336.
(6) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0338.
(7) Or every 10 years, whichever
comes first. See Gas Strut(s)0340.
(8) 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 Care0384.
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.
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
SERVICE AND MAINTENANCE 405
UsageFluid/Lubricant
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.
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 23321606 A3212C
Engine Oil Filter
I2.0L L4 Engine 55495105 PF66
I3.6L V6 Engine 12693541 UPF63R
Passenger Compartment Air Filter 13508023 CF185
Spark Plugs I2.0L L4 Engine 55504354 41-130-IP
I3.6L V6 Engine 12646780 41-130
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
TECHNICAL DATA 409
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants
0 404 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*
I2.0L L4 Engine 10.6 L 11.2 qt
I3.6L V6 Engine 10.6 L 11.2 qt
I3.6L V6 Engine with rear A/C 12.0 L 12.7 qt
Engine Oil with Filter I2.0L L4 Engine 5.0 L 5.3 qt
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
INDEX 437
Door (cont'd)Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive Belt Routing, Engine . . . . . . . . . 411
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . 244
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driver Assistance Systems . . . . . . . . . 276
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control . . . . . . . . . . . . . . . . 248
Driver Mode Control Light . . . . . . . . . 121
Driving Assistance Systems . . . . . . . . . . . . . . . 287
Better Fuel Economy . . . . . . . . . . . . . 216
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . . . . . 305
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Hill and Mountain Roads . . . . . . . . 224
If the Vehicle is Stuck . . . . . . . . . . . . 226
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Loss of Control . . . . . . . . . . . . . . . . . . . . 219
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Off-Road Recovery . . . . . . . . . . . . . . . . 219
Vehicle Load Limits . . . . . . . . . . . . . . 226
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 223 Driving (cont'd)
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 206
E
Electric Brake Boost . . . . . . . . . . . . . . . . 244
Electric Parking Brake . . . . . . . . . . . . . . 245
Electric Parking Brake Light . . . . . . . 118
Electrical Equipment, Add-On . . . . . 316
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Fuses and Circuit Breakers . . . . . . . 343
Instrument Panel Fuse Block . . . . 347
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 329
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Compartment Overview . . . . . . . . . . 322
Coolant Temperature Gauge . . . . . 113
Cooling System . . . . . . . . . . . . . . . . . . . 330
Drive Belt Routing . . . . . . . . . . . . . . . . 411 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . . . . . . 327
Oil Pressure Light . . . . . . . . . . . . . . . . . 122
Overheating . . . . . . . . . . . . . . . . . . . . . . . 334
Power Messages . . . . . . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . . . . 238
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Engine Air Filter Life System . . . . . . 328
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 144
Equipment, Towing . . . . . . . . . . . . . . . . . 312
Event Data Recorders . . . . . . . . . . . . . . 423
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 145
Extended Parking . . . . . . . . . . . . . . . . . . . 237
Extender, Seat Belt . . . . . . . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . 141
Exterior Lighting Battery Saver . . . . 145
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 329
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 141
Flashers, Hazard Warning . . . . . . . . . . 142
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 392