2017 CADILLAC CTS engine coolant

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
VEHICLE CARE 267
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise. If you hear a
hiss, wait for that to stop. This
will allow any pressure still left
to be vented out the
discharge hose.
2. Keep turning the pressure cap slowly and remove it. Open the
surge tank service port cap to
the lower chamber. The service
port is behind the top chamber.3. Fill the surge tank top chamberwith the proper DEX-COOL
coolant mixture to the bottom of
the fill neck. The top chamber
needs to be completely full. Fill
the surge tank bottom chamber
through the service port to
approximately half.
4. With the coolant surge tank pressure cap off and the surge
tank service port cap open, start
the engine and let it run until
you can feel the upper radiator
hose getting hot. Watch out for
the engine cooling fan(s).
By this time, the coolant level
inside the coolant surge tank top
chamber may be lower. If the
level is lower, add more of the
proper DEX-COOL coolant
mixture to the surge tank top
chamber until the level reaches
the bottom of the fill neck.
5. Replace the surge tank pressure cap tightly and close the surge
tank service port cap.Caution
If the pressure cap is not tightly
installed, coolant loss and possible
engine damage may occur. Be sure
the cap is properly and tightly
secured.
Check the level in the surge tank top
and bottom chambers when the
cooling system has cooled down.
If the coolant is not at the proper
levels, repeat Steps 1–3 and reinstall
the pressure cap and close the service
port. If the coolant still is not at the
proper levels when the system cools
down again, see your dealer.
Engine Overheating
The vehicle has an indicator to warn
of the engine overheating.
If the decision is made not to lift the
hood when this warning appears, get
service help right away.
If the decision is made to lift the
hood, make sure the vehicle is parked
on a level surface.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
268 VEHICLE CARE
Then check to see if the engine
cooling fan is running. If the engine is
overheating, the fan should be
running. If it is not, do not continue
to run the engine. Have the vehicle
serviced.
Caution
Running the engine without coolant
may cause damage or a fire. Vehicle
damage would not be covered by
the vehicle warranty.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you just
open the hood. Stay away from the
engine if you see or hear steam
coming from it. Just turn it off and
get everyone away from the vehicle(Continued)
Warning (Continued)
until it cools down. Wait until there
is no sign of steam or coolant
before you open the hood.
If you keep driving when the engine
is overheated, the liquids in it can
catch fire. You or others could be
badly burned. Stop the engine if it
overheats, and get out of the
vehicle until the engine is cool.
If Steam Is Coming from the
Engine Compartment with No
Overheat Warning
(V-Series Only)
The V-Series hood vent is functional,
and will allow water from rain and car
washes to enter the engine
compartment and contact hot
surfaces. If steam is seen coming from
the hood vent with no accompanying
overheat warning, no action is
required.
If No Steam Is Coming from the
Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen or
heard, the problem may not be too
serious. Sometimes the engine can get
a little too hot when the vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral) and let the
engine idle.
If the overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
VEHICLE CARE 269
back on, continue to drive normally
and have the cooling system checked
for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle right away.
If there is no sign of steam, idle the
engine for three minutes while parked.
If the warning is still displayed, turn
off the engine until it cools down.
Washer Fluid
What to Use
When windshield washer fluid is
needed, be sure to read the
manufacturer's instructions before
use. If operating the vehicle in an area
where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol
on it. Add washer fluid until the tank
is full. SeeEngine Compartment
Overview 0250 for reservoir location.
Caution
.
Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
(Continued)
Caution (Continued)
.Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could damage
the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time when the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will not
work well. That could lead to a
crash. When the brake wear
warning sound is heard, have the
vehicle serviced.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
VEHICLE CARE 281
FusesUsage
*21 –
22 Driver motorized safety belt
*26 –
27 –/Heated seat 2
28 –/Reverse lock out
*29 AFS AHL/Pedestrian protection
30 –
31 Passenger window switch
32 –
33 Sunroof
34 Front wiper
35 Steering column lock
36 RBEC/Ignition
37 –/MIL/Ignition
38 Aeroshutter
39 O2 sensor/Emissions
40 Ignition coil/Injectors Fuses
Usage
41 –/Ignition coil/
Injectors
*42 Engine control module
43 –
44 –
45 Washer
48 Instrument panel/ Body/Ignition
49 FSCM/Ignition
*50 Heated steering wheel
*51 Engine control module/Ignition
*52 TCM/Ignition 53 Coolant pump
55 –
*56 TCM/–
*64 Automatic headlamp leveling
*65 Left HID headlamp 66 Right HID headlamp Fuses
Usage
67 High-beam headlamps
68 Headlamp leveling motor
69 Horn
71 Coolant fan
72 Starter 2
*73 Brake vacuum pump 74 Starter
75 A/C clutch
76 –
Relays Usage
*8 Headlamp washer
23 Wiper control relay
24 Wiper speed
25 Engine control module
46 Rear washer
47 Front washer
*54 Coolant pump

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
324 SERVICE AND MAINTENANCE
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 in
Recommended Fluids and Lubricants
0331 and Maintenance Replacement
Parts 0332. 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 0296.Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
.
Check the engine oil level. See
Engine Oil 0257.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0290.
. Inspect the tires for wear. See Tire
Inspection 0296.
. Check the windshield washer fluid
level. See Washer Fluid 0269.
Engine Oil Change
Change the engine oil and filter when
the CHANGE ENGINE OIL SOON
message displays, 12 000 km/7,500 mi,
or at one year, whichever comes first.
If driven under the best conditions,
the engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and
filter must be changed at least once a
year and the oil life system must be
reset. Your trained dealer technician
can perform this work. If the engine oil life system is reset accidentally,
service the vehicle within 5 000 km/
3,000 mi since the last service. Reset
the oil life system when the oil is
changed. See
Engine Oil Life
System 0259.
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 Rotation0296.
. Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil0257
and Engine Oil Life System 0259.
. Check engine coolant level. See
Engine Coolant 0264.
. Check windshield washer fluid
level. See Washer Fluid 0269.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0315. Replace worn or
damaged wiper blades. See Wiper
Blade Replacement 0274.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
SERVICE AND MAINTENANCE 331
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Automatic Transmission DEXRON
®-HP Automatic Transmission Fluid (GM Part No. 19331925).
Chassis Lubrication Chassis Lubricant (GM Part No. 12377985) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Electronic Limited Slip Differential (eLSD) Clutch System Lubricant (CTS-V Only) DEXRON
®-VI Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant. See
Engine Coolant 0264.
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity grade.
ACDelco dexos1 Synthetic Blend is recommended. See Engine Oil0257.
Front Axle (AWD Only) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88863089).
Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668) or lubricant meeting
requirements of NLGI #2, Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818).
Key Lock Cylinders, Hood, and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241).
Rear Axle (Limited-Slip Differential) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88862624).

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
344 INDEX
Control of a Vehicle . . . . . . . . . . . . . . . . 182
Convenience Net . . . . . . . . . . . . . . . . . . . . 102
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 43
CoolantEngine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Engine Temperature Gauge . . . . . . 120
Engine Temperature WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cooling . . . . . . . . . . . . . . . . . . . . . . . . .172, 177
Cooling System . . . . . . . . . . . . . . . . . . . . . 263 Engine Messages . . . . . . . . . . . . . . . . . . 140
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 162
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 218 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Cruise Control, Adaptive . . . . . . . . . . . 220
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . 101
D
Danger, Warning, and Caution . . . . . . . . 2
Data Collection
Infotainment System . . . . . . . . . . . . . 341
Data Recorder Performance . . . . . . . . . . . . . . . . . . . . . . . 165
Data Recorders, Event . . . . . . . . . . . . . . 340
Daytime Running Lamps (DRL) . . . 159
Defensive Driving . . . . . . . . . . . . . . . . . . . 182
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 37
Differential, Limited-Slip . . . . . . . . . . . 217 Distracted Driving . . . . . . . . . . . . . . . . . . 182
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 162
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 131
Ajar Messages . . . . . . . . . . . . . . . . . . . . . 139
Delayed Locking . . . . . . . . . . . . . . . . . . . . 37
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 37
Rear Seat Pass-Through . . . . . . . . . . . . 64
Drive Belt Routing, Engine . . . . . . . . . 338
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 206, 272
Driver Assistance Systems . . . . . . . . . 227
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 132
Driver Mode Control . . . . . . . . . . . . . . . . 211
Driving
Assistance Systems . . . . . . . . . . . . . . . 235
Competitive . . . . . . . . . . . . . . . . . . . . . . . 214
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 182
For Better Fuel Economy . . . . . . . . . . . 26
Hill and Mountain Roads . . . . . . . . 189
If the Vehicle is Stuck . . . . . . . . . . . . 191
Loss of Control . . . . . . . . . . . . . . . . . . . . 184
Off-Road Recovery . . . . . . . . . . . . . . . . 184
Track Events and Competitive . . . 185
Vehicle Load Limits . . . . . . . . . . . . . . 192
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . 189 Driving (cont'd)
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . 172
E
Electric Parking Brake . . . . . . . . . . . . . . 207
Electrical Equipment, Add-On . . . . . 246
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Fuses and Circuit Breakers . . . . . . . 278
Instrument Panel Fuse Block . . . . 282
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . 261
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . . . . . . 123
Compartment Overview . . . . . . . . . . 250
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Coolant Temperature Gauge . . . . . 120
Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . 128
Cooling System . . . . . . . . . . . . . . . . . . . 263
Cooling System Messages . . . . . . . . 140
Drive Belt Routing . . . . . . . . . . . . . . . . 338
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
INDEX 345
Engine (cont'd)Oil Life System . . . . . . . . . . . . . . . . . . . . 259
Oil Messages . . . . . . . . . . . . . . . . . . . . . . 140
Oil Pressure Light . . . . . . . . . . . . . . . . . 129
Overheating . . . . . . . . . . . . . . . . . . . . . . . 267
Power Messages . . . . . . . . . . . . . . . . . . 140
Running While Parked . . . . . . . . . . . 203
Starting . . . . . . . . . . . . . . . . . . . . . . . . 19, 198
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 163
Event Data Recorders . . . . . . . . . . . . . . 340
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 163
Extended Parking . . . . . . . . . . . . . . . . . . . 201
Exterior Lamp Controls . . . . . . . . . . . . 157
Exterior Lamps Off Reminder . . . . . . 159
Exterior Lighting Battery Saver . . . . 164
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 261
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 159
Flashers, Hazard Warning . . . . . . . . . . 161
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Fluid Automatic Transmission . . . . . . . . . 260
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 Forward Automatic Braking . . . . . . . . 237
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Front Seats Heated and Ventilated . . . . . . . . . . . . . 60
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Economy Driving . . . . . . . . . . . . . . . . . . . 26
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 245
Filling the Tank . . . . . . . . . . . . . . . . . . . 243
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Low Fuel Warning Light . . . . . . . . . 129
System Messages . . . . . . . . . . . . . . . . . 141
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Fuses and Circuit Breakers . . . . . . . 278
Instrument Panel Fuse Block . . . . 282
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
G
Gauges
Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Engine Coolant Temperature . . . . 120
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Speedometer . . . . . . . . . . . . . . . . . . . . . . 118 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 118
Trip Odometer . . . . . . . . . . . . . . . . . . . . 118
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 113
General Information Service and Maintenance . . . . . . . . 323
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 248
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 275
Hazard Warning Flashers . . . . . . . . . . 161
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 53
Head-up Display . . . . . . . . . . . . . . . . . . . . 135
Headlamps Adaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . . . . . 160
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 160
Bulb Replacement . . . . . . . . . . . . . . . . 275
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 159
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 159
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . 276
High-Beam On Light . . . . . . . . . . . . . . 130
High/Low Beam Changer . . . . . . . . . 159