fuel CADILLAC STS 2011 1.G Service Manual

Black plate (126,1)Cadillac STS Owner Manual - 2011
FusesUsage
AIRBAG/IGNSensing and Diagnostic Monitor,
Automatic Occupant Sensor,
Passenger Supplemental Inflatable
Restraint
CNSTR/VENT Canister Vent Solenoid
SPARE Spare
FRT PDM Front Passenger Door Module, Right
Power Subwoofer
FUEL PUMP Fuel Pump
HTD STR Heated Steering WheelRF HTD/
SEAT/XM Front Passenger Heated Seat,
S-Band™
Antenna
RDO/ONSTAR Radio, OnStar
®
INT LAMP Interior Lamps
LT TRN/LDW Left Turn Signal, Lane Departure
Warning (Option)
Fuses
Usage
REAR DEFOG Rear Defogger
REAR/FOG Rear Fog Lamps (Option)
RIM Rear Integration Module
RIM /RPA
/ISRVM /CLM Rear Integration Module, Rear
Parking Aid, Inside Rearview Mirror,
Column Lock Module, Power
Sounder, Active Front Steering (AFS),
Supervisory Control Module
RUN/CRNK UHBEC Run, CRNK Relay Coil, Rear
Fog Lamp Relay Coil
S/ROOF Sun Roof Module (Option) SPARE Spare
STOP LAMPS Stop Lamps
RT TRN/SZBA Right Turn Signal, Side Blind Zone
Alert (Option)
6-126

Black plate (127,1)Cadillac STS Owner Manual - 2011
RelaysUsage
SPARE Spare
FUEL PUMP Fuel Pump
INT LAMP Interior Lamps
REAR DEFOG Rear Defogger REAR/FOG Rear Fog Lamps (Option)
RUN/CRNK Ignition 1 SPARE Spare
STOP LAMP Stop Lamp
Circuit
Breakers Usage
WINDOW MTRS Power Window Motors Circuit Breaker
Diodes
Usage
TRUNK DIODE Trunk Release
Joint
Connector Usage
J/C Splice Pack (Blue)
6-127

Black plate (128,1)Cadillac STS Owner Manual - 2011
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricantson page 7‑9for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge
amount, see the refrigerant label located under the hood. See your dealer for more information.
Brake Fluid Capacities 1.0 L1.1 qt
Cooling System 10.8 L11.4 qt
Engine Oil with Filter 5.7 L6.0 qt
Fuel Tank 66.2 L17.5 gal
Transmission Fluid 6-Speed Automatic (Pan Removal and Filter
Replacement) 6.3 L
6.7 qt
Wheel Nut Torque 140Y 100 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level as recommended in this manual.
Recheck the fluid level after filling.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
3.6L SIDI V6 Engine DAutomatic 1.11 mm (0.044 in)
6-128

Black plate (2,1)Cadillac STS Owner Manual - 2011
Maintenance Schedule
Introduction
Notice:Maintenance intervals, checks, inspections,
recommended fluids, and lubricants are necessary
to keep this vehicle in good working condition.
Damage caused by failure to follow scheduled
maintenance might not be covered by the vehicle
warranty.
As the vehicle owner, you are responsible for the
scheduled maintenance in this section. We recommend
having your dealer perform these services. Proper
vehicle maintenance helps to keep the vehicle in good
working condition, improves fuel economy, and reduces
vehicle emissions for better air quality.
Because of all the different ways people use vehicles,
maintenance needs vary. The vehicle might need
more frequent checks and services. Please read the
information under Scheduled Maintenance. To keep
the vehicle in good condition, see your dealer. The maintenance schedule is for vehicles that:
.carry passengers and cargo within recommended
limits on the Tire and Loading Information label.
See
Loading the Vehicle on page 5‑23.
.are driven on reasonable road surfaces within legal
driving limits.
.use the recommended fuel. See Gasoline Octaneon page 6‑7.
{WARNING:
Performing maintenance work on a vehicle can be
dangerous. In trying to do some jobs, you can be
seriously injured. Do your own maintenance work
only if you have the required know-how and the
proper tools and equipment for the job. If you
have any doubt, see your dealer to have a
qualified technician do the work. See Doing Your
Own Service Work on page 6‑5.
7-2

Black plate (4,1)Cadillac STS Owner Manual - 2011
Every Engine Oil Change
.Change engine oil and filter. Reset oil life system.
SeeEngine Oilon page 6‑16andEngine Oil Life
Systemon page 6‑20. An Emission Control
Service.
.Engine coolant level check. See Engine Coolanton page 6‑25.
.Engine cooling system inspection. Visual
inspection of hoses, pipes, fittings, and clamps and
replacement, if needed.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑34.
.Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and
wiper blade cleaning, if contaminated. See
Windshield and Wiper Blades
on page 6‑111. Worn
or damaged wiper blade replacement. See
Windshield Wiper Blade Replacement
on
page 6‑49.
.Tire inflation pressures check. See Inflation - Tire
Pressure on page 6‑58.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑65.
.If tire rotation is recommended for the vehicle,
rotate tires if necessary. See Tire Inspection and
Rotation on page 6‑65.
.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 on page 6‑21.
.Brake system inspection (or every 12 months,
whichever occurs first).
.Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts
or signs of wear.
.Body hinges and latches, key lock cylinders,
rear compartment hinges, console door hinges,
and glove box door hinges lubrication. See
Recommended Fluids and Lubricants
on
page 7‑9. 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 Checking
the Restraint Systems on page 2‑72.
.Fuel system inspection for damage or leaks.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
7-4

Black plate (5,1)Cadillac STS Owner Manual - 2011
Additional Required Services
Every 12 000 km/7,500 Miles
.If tire rotation is recommended for the vehicle,
rotate tires. Tires should be rotated every
12 000 km/7,500 miles. SeeTire Inspection and
Rotation on page 6‑65.
At Each Fuel Stop
.Engine oil level check. See Engine Oilon
page 6‑16.
.Engine coolant level check. See Engine Coolanton page 6‑25.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑34.
Once a Month
.Tire inflation pressures check. See Inflation - Tire
Pressure on page 6‑58.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑65.
.Sunroof track and seal inspection, if equipped. See
Sunroof on page 3‑57.
Once a Year
.Starter switch check. See Owner Checks and
Services on page 7‑7.
.Automatic transmission shiftlock control function
check. See Owner Checks and Serviceson
page 7‑7.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 7‑7.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
.If the vehicle has a Tire Sealant and Compressor
Kit, check the sealant expiration date printed on
the instruction label of the kit. See Tire Sealant and
Compressor Kit (Without Selector Switch)
on
page 6‑76or Tire Sealant and Compressor Kit
(With Selector Switch) on page 6‑85.
.Underbody flushing service.
7-5

Black plate (6,1)Cadillac STS Owner Manual - 2011
Once Every Two Years
.Vehicles using DOT 4 brake fluid only: Brake fluid
replacement.
First Engine Oil Change After 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
you drive in areas with heavy traffic, areas with
poor air quality, or areas with high dust levels.
Replacement may also be needed if you notice
reduced air flow, windows fogging up, or odors.
Your dealer can help you determine when it is the
right time to replace the filter.
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6‑21.
.Automatic transmission fluid and filter change
(severe service) for vehicles mainly driven in heavy
city traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used for
taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑23.
.All‐wheel drive only: Transfer case fluid change
(severe service) for vehicles mainly driven when
frequently towing a trailer, or used for taxi, police,
or delivery service. Check vent hose at transfer
case for kinks and proper installation. Check to be
sure vent hose is unobstructed, clear, and free of
debris.
.Evaporative control system inspection. Check all
fuel and vapor lines and hoses for proper hook‐up,
routing, and condition. Check that the purge valve,
if the vehicle has one, works properly. Replace as
needed. An Emission Control Service. The U.S.
Environmental Protection Agency or the California
Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify the emission warranty or limit recall liability
prior to the completion of the vehicle's useful life.
We, however, urge that all recommended
maintenance services be performed at the
indicated intervals and the maintenance be
recorded.
7-6

Black plate (9,1)Cadillac STS Owner Manual - 2011
Cadillac Owner Privileges™
.Emergency Fuel Delivery:Delivery of enough
fuel for the vehicle to get to the nearest service
station.
.Lock‐Out Service: Service to unlock the vehicle
if you are locked out. A remote unlock may be
available if you have OnStar
®. For security
reasons, the driver must present identification
before this service is given.
.Emergency Tow From a Public Road or
Highway: Tow to the nearest Cadillac dealer for
warranty service, or if the vehicle was in a crash
and cannot be driven. Assistance is also given
when the vehicle is stuck in the sand, mud,
or snow.
.Flat Tire Change: Service to change a flat tire
with spare tire. The spare tire, if equipped, must be
in good condition and properly inflated. It is your
responsibility for the repair or replacement of the
tire if it is not covered by the warranty.
.Battery Jump Start: Service to jump start a dead
battery.
.Trip Routing Service: Detailed maps of North
America are provided when requested either with
the most direct route or the most scenic route.
Additional travel information is also available. Allow
three weeks for delivery.
.Trip Interruption Benefits and Service: If your
trip is interrupted due to a warranty failure,
incidental expenses may be reimbursed during the
5 years/160 000 km (100,000 miles) Powertrain
warranty period. Items considered are hotel,
meals, and rental car.
8-9

Black plate (11,1)Cadillac STS Owner Manual - 2011
Services Specific to
Canadian‐Purchased Vehicles
.Fuel delivery:Reimbursement is approximately
$5 Canadian. Diesel fuel delivery may be
restricted. Propane and other fuels are not
provided through this service.
.Lock-Out Service: Vehicle registration is
required.
.Trip Routing Service: Limit of six requests
per year.
.Trip Interruption Benefits and Service:
Pre-authorization, original detailed receipts, and
a copy of the repair orders are required. Once
authorization has been received, the Roadside
Service advisor will help you make arrangements
and explain how to receive payment.
.Alternative Service: If assistance cannot be
provided right away, the Roadside Service advisor
may give you permission to get local emergency
road service. You will receive payment, up to $100,
after sending the original receipt to Roadside
Service. Mechanical failures may be covered,
however any cost for parts and labor for repairs
not covered by the warranty are the owner
responsibility.
Scheduling Service Appointments
When your vehicle requires warranty service, contact
your dealer and request an appointment. By scheduling
a service appointment and advising your service
consultant of your transportation needs, your dealer can
help minimize your inconvenience.
If your vehicle cannot be scheduled into the service
department immediately, keep driving it until it can be
scheduled for service, unless, of course, the problem is
safety related. If it is, please call your dealership, let
them know this, and ask for instructions.
If the dealer requests you to bring the vehicle for
service, you are urged to do so as early in the work
day as possible to allow for the same day repair.
8-11

Black plate (12,1)Cadillac STS Owner Manual - 2011
Courtesy Transportation Program
To enhance your ownership experience, we and our
participating dealers are proud to offer Courtesy
Transportation, a customer support program for vehicles
with the Bumper to Bumper (Base Warranty Coverage
period in Canada), extended powertrain, and/or
hybrid‐specific warranties in both the U.S. and Canada.
Several Courtesy Transportation options are available
to assist in reducing your inconvenience when warranty
repairs are required.
Courtesy Transportation is not a part of the New Vehicle
Limited Warranty. A separate booklet entitled“Warranty
and Owner Assistance Information” furnished with each
new vehicle provides detailed warranty coverage
information.
Transportation Options
Warranty service can generally be completed while
you wait. However, if you are unable to wait, GM
helps to minimize your inconvenience by providing
several transportation options. Depending on the
circumstances, your dealer can offer you one
of the following:
Shuttle Service
Shuttle service is the preferred means of offering
Courtesy Transportation. Dealers may provide shuttle
service to get you to your destination with minimal
interruption of your daily schedule. This includes
one‐way or round‐trip shuttle service within reasonable
time and distance parameters of the dealer's area.
Public Transportation or Fuel
Reimbursement
If your vehicle requires overnight warranty repairs, and
public transportation is used instead of the dealer's
shuttle service, the expense must be supported by
original receipts and can only be up to the maximum
amount allowed by GM for shuttle service.
8-12