2015 CADILLAC XTS SEDAN suspension

Black plate (44,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
5-44 Instruments and Controls
.Various vehicle electrical issues.
.Worn out or overheated clutch
plates.
.Loss of fluids.
If this message appears, stop when
it is safe to do so and turn off the
ignition for 30 seconds. Restart the
vehicle and check for the message
on the DIC display. If the message
does not appear, it is not necessary
to take your vehicle to the dealer.
If the message still displays or
appears again when you begin
driving, the system needs service.
See your dealer.
SERVICE LEVELING SYSTEM
This message displays when there
is a problem with the automatic rear
level control. See Automatic Level
Control on page 9-32. Have the
vehicle serviced by your dealer.
SERVICE STABILITRAK
This message displays if there is a
problem with the StabiliTrak system.
See Traction Control/Electronic
Stability Control on page 9-29.
SERVICE SUSPENSION
SYSTEM
This message displays when there
is a problem with the Magnetic Ride
Control system. See Magnetic Ride
Control on page 9-31. Have the
vehicle serviced by your dealer.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). See Traction
Control/Electronic Stability Control
on page 9-29.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS) has
been turned off. See Traction
Control/Electronic Stability Control
on page 9-29.
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) has
been turned on. See Traction
Control/Electronic Stability Control
on page 9-29.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a
problem with the airbag system.
Take the vehicle to your dealer for
service.
Security Messages
THEFT ATTEMPTED
This message displays if the vehicle
detects a tamper condition.

Black plate (31,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Driving and Operating 9-31
To turn off only TCS, press and
release the
gbutton. The Traction
Off Light
idisplays in the
instrument cluster and the
appropriate DIC message is
displayed. See Ride Control System
Messages on page 5-43. To turn
TCS on again, press and release
the
gbutton. The Traction Off Light
idisplayed in the instrument
cluster will turn off and the
appropriate DIC message is
displayed.
If TCS is limiting wheel spin when
the
gbutton is pressed, the system
will not turn off until the wheels stop
spinning.
To turn off both TCS and StabiliTrak,
press and hold the
gbutton until
the Traction Off Light
iand
StabiliTrak Off Light
gcome on and
stay on in the instrument cluster.
The appropriate DIC message is
displayed. See Ride Control System
Messages on page 5-43. To turn
TCS and StabiliTrak on again, press and release the
gbutton. The
Traction Off Light
iand StabiliTrak
Off Light
gin the instrument cluster
turn off and the appropriate DIC
message is displayed.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications on
page 10-3.
Magnetic Ride Control
The Magnetic Ride Control monitors
the suspension system.
Based on road conditions, steering
wheel angle, and vehicle speed, the
system automatically adjusts to
provide the best handling while
providing a smooth ride. The Tour
and Sport Modes will feel similar on
a smooth road.
Tour: Use for normal city and
highway driving. This setting
provides a smooth, soft ride. Sport:
Use where road conditions
or personal preference demand
more control. This setting provides
more “feel,” or response to road
conditions.
The vehicle is normally in Tour
Mode. Sport Mode is engaged when
the shift lever is placed in M
(Manual Mode). When the shift lever
is placed in D (Drive) the system will
revert back to Tour Mode.
The Driver Information Center (DIC)
briefly displays the appropriate
message on vehicle startup or when
a new mode is selected. See Ride
Control System Messages on
page 5-43.
Limited-Slip Rear Axle
Vehicles with a limited-slip rear axle
can give more traction on snow,
mud, ice, sand or gravel. When
traction is low, this feature allows
the drive wheel with the most
traction to move the vehicle. The
limited-slip rear axle also gives the

Black plate (32,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
9-32 Driving and Operating
driver enhanced control when
cornering hard or completing a
maneuver, such as a lane change.
Automatic Level Control
The automatic level control rear
suspension is available on some
vehicles.
This type of level control is fully
automatic and will provide a better
leveled riding position as well as
better handling under a variety of
passenger and loading conditions.
An air compressor connected to the
rear air springs will raise or lower
the rear of the vehicle to maintain
proper vehicle height. The system is
activated when the engine is
running and will automatically adjust
vehicle height thereafter. The
system may exhaust (lower vehicle
height) for up to 10 minutes after the
engine has been turned off. You
may hear the air compressor
operating when the height is being
adjusted; this is normal.If the compressor runs often for
longer than one minute within the
same trip and the vehicle remains
low in the rear, see your dealer for
service.
If the vehicle is not used for several
weeks, the rear of the vehicle may
look low. When the engine is
started, the vehicle will return to the
proper height.
If a weight-distributing hitch is being
used, it is recommended to allow
the air springs to inflate, thereby
leveling the vehicle prior to adjusting
the hitch.
Cruise Control
{Warning
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.
With cruise control, a speed of
about 40 km/h (25 mph) or more can
be maintained without keeping your
foot on the accelerator. Cruise
control does not work at speeds
below about 40 km/h (25 mph).

Black plate (59,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Vehicle Care 10-59
Professional vehicle wheels have a
unique offset and bolt hole diameter.
Professional vehicle wheels have
six wheel nuts. Non-professional
vehicle wheels have five wheel nuts.
SeeTire Changing on page 10-69.
Used Replacement Wheels
{Warning
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.
Tire Chains
{Warning
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
tire chains could cause loss of
control and a crash.
Use another type of traction
device only if its manufacturer
recommends it for the vehicle's
tire size combination and road
conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive slow
and readjust or remove the
traction device if it contacts the
vehicle. Do not spin the wheels.
If traction devices are used, install
them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. See Tires
on page 10-38. If air goes out of a
tire, it is much more likely to leak
out slowly. But if there is ever a
blowout, here are a few tips about
what to expect and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.

Black plate (85,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Vehicle Care 10-85
Caution (Continued)
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Brake System
Visually inspect brake lines and
hoses for proper hook-up, binding,
leaks, cracks, chafing, etc. Inspect
disc brake pads for wear and rotors
for surface condition. Inspect drum
brake linings/shoes for wear or
cracks. Inspect other brake parts,
including drums, wheel cylinders,
calipers, parking brake, master
cylinder, brake fluid reservoir,
vacuum pipes, electric vacuum
pump including bracket and vent
hose, if equipped.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
hook-up, binding, leaks, cracks,
chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, steel
fuel door hinge, unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
At least twice a year, spring and fall
use plain water to flush any
corrosive materials from theunderbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.

Black plate (5,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Service and Maintenance 11-5
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. SeeExterior
Care on page 10-81. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-26.
.Check tire inflation pressures.
See Tire Pressure on
page 10-45.
.Inspect tire wear. See Tire
Inspection on page 10-52.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-13.
.Inspect brake system. See
Exterior Care on page 10-81.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care on
page 10-81.
.Check restraint system
components. See Safety System
Check on page 3-23.
.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 on page 10-81.
.Check starter switch. See Starter
Switch Check on page 10-25.
.Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check on
page 10-26.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check on
page 10-26.
.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. See your
dealer if service is required.
.Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit on
page 10-61.
.Inspect sunroof track and seal,
if equipped. See Sunroof on
page 2-26.

Black plate (10,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
13-10 Customer Information
Give only the necessary information
to police and other parties involved
in the crash.
For emergency towing see
Roadside Service on page 13-5.
Gather the following information:
.Driver name, address, and
telephone number.
.Driver license number.
.Owner name, address, and
telephone number.
.Vehicle license plate number.
.Vehicle make, model, and
model year.
.Vehicle Identification
Number (VIN).
.Insurance company and policy
number.
.General description of the
damage to the other vehicle.
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section. If the airbag has inflated, see
What
Will You See after an Airbag
Inflates? on page 3-30.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Service Publications
Ordering Information
Service Manuals
Service Manuals have the diagnosis
and repair information on the
engines, transmission, axle,
suspension, brakes, electrical,
steering, body, etc.