2016 CADILLAC CTS engine oil

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 267
Warning (Continued)
could catch fire and you or others
could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean
drinkable water and DEX-COOL
coolant. This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants 0333.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
It is normal to see coolant moving in
the upper coolant hose return line
when the engine is running. It is
also normal to see bubbles entering
the surge tank through the
small hose.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down.
If coolant is visible but the coolant
level is not at or above the COLD
FILL line, add a 50/50 mixture of
clean drinkable water and
DEX-COOL coolant.
Be sure the cooling system is cool
before this is done.
It is normal for the coolant level in
the bottom chamber to rise and fall
with operating temperature and
ambient conditions. Coolant will
evaporate from the bottom chamber
in normal operation. This will

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
268 Vehicle Care
happen faster when the vehicle is
driven for long periods in hot, dry
conditions.
If no coolant is visible in the coolant
surge tank, add coolant as follows:
How to Add Coolant to the
Coolant Surge TankCaution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
If no problem is found, check to see
if coolant is visible in the coolant
surge tank. If coolant is visible but
the coolant level is not at the bottom
of the fill neck, add a 50/50 mixture
of clean, drinkable water and
DEX-COOL coolant at the coolant
surge tank, but be sure the cooling
system, including the coolant surge
tank pressure cap, is cool before
you do it.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or others (Continued)
Warning (Continued)
could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant.
Caution
In cold weather, water can freeze
and crack the engine, radiator,
heater core, and other parts. Use
the recommended coolant and
the proper coolant mixture.
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
1. Remove the coolant surge tank pressure cap from the top
chamber when the cooling
system, including the coolant

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 283
Number Usage21 Not used
*22 Driver motorized safety belt
23 Wiper control relay
24 Wiper speed relay
25 Engine control module relay
26 Not used
27 Spare/Heated seat 2
28 Spare/Reverse Lock Out
*29 AFS AHL/ pedestrian
protection
30 Not used
31 Passenger Window Switch
32 Not used
33 Sunroof
34 Front wiper
*35 Steering column lock Number Usage
36 Rear Bussed Electrical Center
37 Spare/MIL ignition
38 Spare/PT Fuse
39 O2 sensor
40 Ignition coil injector
41 Spare/Ignition coil injector
42 Engine control module
43 Not used
44 Not used
45 Washer
46 Not used
47 Front washer relay
48 IP body ignition
49 Fuel system control module ignition
50 Heated steering wheel
51 Engine control module ignition Number Usage
52 Transmission control module
ignition
*53 Coolant pump
*54 Coolant pump relay 55 Not used
56 Transmission control module/
spare
*57 Headlamp low relay 58 Headlamp high relay
59 Run/crank relay
*60 Starter 2 relay
*61 Vacuum pump relay 62 Starter relay
63 Air conditioning control relay
*64 Automatic head lamps
*65 Left high intensity discharge

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Service and Maintenance 329
At your dealer, you can be certain
that you will receive the highest
level of service available. Your
dealer has specially trained service
technicians, uses genuine
replacement parts, as well as,
up-to-date tools and equipment to
ensure fast and accurate
diagnostics.
The proper replacement parts,
fluids, and lubricants to use are
listed inRecommended Fluids and
Lubricants 0333 andMaintenance
Replacement Parts 0334. We
recommend the use of genuine
parts from your dealer.
Rotation of New Tires
Tire rotation is not recommended if
the vehicle has different size tires
on the front and rear wheels. If tire
rotation is recommended for the
vehicle, to maintain ride, handling,
and performance of the vehicle, it is
important that the first rotation
service for new tires be performed.
Tires should be rotated every
service. See Tire Rotation 0299.Maintenance
Schedule
When the Change Engine Oil
Soon Message Displays
Change engine oil and filter. See
Engine Oil 0259. An Emission
Control Service.
When the CHANGE ENGINE OIL
SOON message displays, service is
required for the vehicle as soon as
possible, within the next 1 000 km/
600 miles. If driving under the best
conditions, the engine oil life system
may not indicate the need for
vehicle service for up to one year.
The engine oil and filter must be
changed at least once a year and
the oil life system must be reset.
Your dealer has trained service
technicians who will perform this
work and reset the system. If the
engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 miles since
the last service. Reset the oil life
system whenever the oil is changed.
See Engine Oil Life System 0261.
Every Engine Oil Change
.
Change engine oil and filter.
Reset oil life system. See
Engine Oil 0259 and Engine Oil
Life System 0261.. An Emission
Control Service.
. Engine coolant level check. See
Engine Coolant 0266.
. Engine cooling system
inspection. Visual inspection of
hoses, pipes, fittings, and
clamps and replacement,
if needed.
. Windshield washer fluid level
check. See Washer Fluid 0271.
. Windshield wiper blade
inspection for wear, cracking,
or contamination and windshield
and wiper blade cleaning,
if contaminated. See Exterior
Care 0318. Worn or damaged
wiper blade replacement. See
Wiper Blade Replacement
0 277.
. Tire inflation pressures check.
See Tire Pressure 0292.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
330 Service and Maintenance
.Tire wear inspection. See Tire
Inspection 0298.
. Rotate tires if necessary. See
Tire Rotation 0299.
. Fluids visual leak check (or
every 12 months, whichever
occurs first). A leak in any
system must be repaired and the
fluid level checked.
. Engine air cleaner filter
inspection. See Engine Air
Cleaner/Filter 0263.
. Brake system inspection (or
every 12 months, whichever
occurs first). See Exterior Care
0 318.
. Steering and suspension
inspection. Visual inspection for
damaged, loose, or missing
parts or signs of wear.
. Body hinges and latches, key
lock cylinders, folding seat
hardware, and sunroof (if
equipped) lubrication. See
Recommended Fluids and
Lubricants 0333. More frequent
lubrication may be required
when the vehicle is exposed to a corrosive environment. Applying
silicone grease on weatherstrips
with a clean cloth makes them
last longer, seal better, and not
stick or squeak.
. Restraint system component
check. See Safety System
Check 070.
. Fuel system inspection for
damage or leaks.
. Exhaust system and nearby heat
shields inspection for loose or
damaged components.
Additional Required Services
Every Service
.Rotate tires. Tires should be
rotated every service. See Tire
Rotation 0299.
At Each Fuel Stop
. Engine oil level check. See
Engine Oil 0259.
. Engine coolant level check. See
Engine Coolant 0266.
. Windshield washer fluid level
check. See Washer Fluid 0271. Once a Month
.
Tire inflation check. See Tire
Pressure 0292.
. Tire wear inspection. See Tire
Inspection 0298.
. Sunroof track and seal
inspection, if equipped. See
Sunroof 049.
Once a Year
. See Automatic Transmission
Shift Lock Control Function
Check 0276.
. See Park Brake and P (Park)
Mechanism Check 0276.
. Accelerator pedal check for
damage, high effort, or binding.
Replace if needed.
. Underbody flushing service. See
Exterior Care 0318.
. Hood/Decklid/Liftgate/Liftglass
Support Gas Strut Service:
Visually inspect gas strut,
if equipped, for signs of wear,
cracks, or other damage. Check
the hold open ability of the gas
strut. Contact your dealer if
service is required.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Service and Maintenance 331
.Engine air cleaner filter
replacement or every 20 000 km/
12,500 Miles. If driving in dusty
conditions, inspect the filter at
each oil change or more often as
needed. See Engine Air Cleaner/
Filter 0263.
Every 40 000 km/25,000 Miles
. Passenger compartment air filter
replacement (or every
24 months, whichever occurs
first). More frequent replacement
may be needed if the vehicle is
driven in areas with heavy traffic,
poor air quality, areas with high
dust levels or are sensitive to
environmental allergens. Cabin
Air Filter replacement may also
be needed if you notice reduced
airflow, windows fogging up,
or odors. Your local GM Service
location can help you determine
when it is the right time to
replace your filter.
Every 72 000 km/45,000 Miles
. Replace brake fluid (or every
three years, whichever occurs
first). .
Rear axle fluid (If equipped with
limited slip).
Every 80 000 km/50,000 Miles
. Evaporative control system
inspection. Check all fuel and
vapor lines and hoses for proper
hook-up, routing, and condition.
Every 96 000 km/60,000 Miles
. Replace spark plugs. Inspect
spark plug wires. (2.0L LTG and
3.6L LF3 Turbo Engines)
Every 156 000 km/97,500 Miles
. Replace spark plugs. Inspect
spark plug wires. (3.6L LGX and
6.2L LT4 Engines)
Every 240 000 km/150,000 Miles
. Engine cooling system drain and
refill (or every five years,
whichever occurs first). See
Cooling System 0264. An
Emission Control Service.
. Engine drive belts inspection for
fraying, excessive cracks,
or obvious damage (or every
10 years, whichever occurs
first). Replace, if needed.Severe Conditions Requiring
More Frequent Maintenance*
.Public service, military,
or commercial use vehicles to
include the following:
‐Ambulances, police cars and
emergency rescue vehicles.
‐ Civilian vehicles such as light
duty pick-up trucks, SUVs and
passenger cars that are used
in military applications.
‐ Recovery vehicles such as
tow trucks and flatbed single
vehicle carriers or any vehicle
that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles
such as courier delivery
vehicles, private security patrol
vehicles or any vehicles that
operate on a 24 hour basis.
‐ Any vehicle consistently
operated in a high sand or
dust environment such as
those used on oil pipelines
and similar applications.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Service and Maintenance 333
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. AC Delco dexos1 Synthetic Blend is recommended. See Engine Oil
0 259.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0266.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818). Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Automatic Transmission DEXRON
®-HP Automatic Transmission Fluid (GM Part No. 19300536).
Transfer Case (All-Wheel Drive) Transfer Case Fluid (GM Part No. 88861950). Front Axle (AWD Only) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089).
Rear Axle (Non-Limited Slip Differential) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089).
Rear Axle (Limited-Slip Differential) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624). Electronic Limited Slip Differential(eLSD) Clutch System Lubricant (CTS-V Only) DEXRON
®-VI Automatic Transmission Fluid.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Service and Maintenance 335
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) 89017525PF63
6.2L V8 Engine (V-Series) 12640445PF64
Passenger Compartment Air Filter 13356916CF185
Spark Plugs 2.0L L4 Engine 1264782741-125
3.6L V6 Engine (LGX) 1264678041-130
3.6L V6 Engine (LF3) 1264279141-118
6.2L V8 Engine (V-Series) 1264272241-128
Wiper Blades Driver Side –60 cm (23.6 in) 23144358—
Passenger Side –45 cm (17.7 in) 23144359—