2018 CADILLAC CTS engine

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
340 SERVICE AND MAINTENANCE
.Check tire inflation pressures. See
Tire Pressure 0301.
. Inspect tire wear. See Tire
Inspection 0307.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter 0267.
. Inspect brake system. See Exterior
Care 0329.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear.
See Exterior Care 0329.
. Check restraint system
components. See Safety System
Check 075. .
Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for loose
or damaged parts.
. Lubricate body components. See
Exterior Care 0329.
. Check starter switch. See Starter
Switch Check 0279.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift Lock
Control Function Check 0280.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check 0280. .
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for signs
of wear, cracks, or other damage.
Check the hold open ability of the
strut. If the hold open is low,
service the gas strut. See Gas
Strut(s) 0281.
. Inspect sunroof track and seal,
if equipped. See Sunroof053.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
SERVICE AND MAINTENANCE 341
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. Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed. (1)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (4)@@@
Replace spark plugs. Inspect spark plug wires. (2.0L
LTG and 3.6L LF3 Turbo Engines)@ @
Replace spark plugs. Inspect spark plug wires. (3.6L
LGX and 6.2L LT4 Engines)@
Change rear axle fluid, if equipped with electronic
limited slip differential. (5)@@@
Change rear axle fluid, without electronic limited slip
differential. (5)@
Change transfer case fluid, if equipped with
AWD. (5)@
Drain and fill engine cooling system. (6)@
Visually inspect accessory drive belts. (7)@
Replace brake fluid. (8)

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
SERVICE AND MAINTENANCE 343
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. Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed. (1)@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
Inspect evaporative control system. (3)@ @@
Replace engine air cleaner filter. (Except 6.2L
V8 Engine) (4)@@@
Replace engine air cleaner filter. (6.2L V8 Engine) (4)@@@@@@
2.0L LTG and 3.6L LF3 Engines: Replace spark plugs.
Inspect spark plug wires.@ @
3.6L LFX Engine Only: Replace spark plugs. Inspect
spark plug wires.@
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 limited slip
differential. (5)@@@
Drain and fill engine cooling system. (6)@
Visually inspect accessory drive belts. (7)@
Replace brake fluid. (8)

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
SERVICE AND MAINTENANCE 345
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 0348 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 CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
348 SERVICE AND MAINTENANCE
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission (Except CTS-V and V-Sport) DEXRON-HP Automatic Transmission Fluid (GM Part No. 19353429, in
Canada 19353430).
Automatic Transmission (CTS-V and V-Sport Only) ATF-WS Automatic Transmission Fluid (GM Part No. 88863400, in
Canada 88863401).
Electronic Limited-Slip Differential
(eLSD) Hydraulic Apply Fluid (CTS-V and V-Sport Only) DEXRON-VI Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0269.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil0263.
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.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in Canada 19299819).
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Rear Axle/Front Axle (All-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in Canada 88863090) meeting GM Specification 9986285.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
SERVICE AND MAINTENANCE 349
UsageFluid/Lubricant
Rear Axle (Limited-Slip Differential) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624, in Canada 88862625) meeting GM Specification 9986290.
Rear Axle (Non-Limited Slip Differential) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089, in
Canada 88863090) meeting GM Specification 9986285.
Transfer Case (All-Wheel Drive) Transfer Case Fluid (GM Part No. 88861950, in Canada 88861951).
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.
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 20857930 A3178C
3.6L V6 Engine (LGX) 20857930 A3178C
3.6L V6 Engine (LF3) 22844634 A3185C
6.2L V8 Engine (V-Series) 22935844 A3203C

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
350 SERVICE AND MAINTENANCE
PartGM Part Number ACDelco Part Number
Engine Oil Filter 2.0L L4 Engine 12640445PF64
3.6L V6 Engine (LGX) 19330000PF63E
3.6L V6 Engine (LF3) 19330000PF63E
6.2L V8 Engine (V-Series) 12640445PF64
Passenger Compartment Air Filter 13508023CF185
Spark Plugs 2.0L L4 Engine 1264782741-125
3.6L V6 Engine (LGX) 1264678041-130
3.6L V6 Engine (LF3) 1266239641-147
6.2L V8 Engine (V-Series) 1264272241-128
Wiper Blades Driver Side –60 cm (23.6 in) 84017839—
Passenger Side –45 cm (17.7 in) 84017838—

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349156) - 2018 - CRC - 9/29/17
352 TECHNICAL DATA
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . . . . . . 352
Service Parts Identification Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Vehicle Data
Capacities and Specifications . . . . 353
Engine Drive Belt Routing . . . . . . . 356
Vehicle Identification
Vehicle Identification
Number (VIN)
This legal identifier is in the front
corner of the instrument panel, on the
driver side of the vehicle. It can be
seen through the windshield from
outside. The Vehicle Identification
Number (VIN) also appears on the
Vehicle Certification and Service Parts
labels and certificates of title and
registration.
Engine Identification
The eighth character in the VIN is the
engine code. This code identifies the
vehicle's engine, specifications, and
replacement parts. See “EngineSpecifications”
underCapacities and
Specifications 0353 for the vehicle's
engine code.
Service Parts Identification
Label
There may be a label on the inside of
the trunk that contains the following
information:
. Vehicle Identification
Number (VIN)
. Model designation
. Paint information
. Production options and special
equipment
If there is no label, there is a barcode
on the certification label on the
center (B) pillar to scan for this same
information.