2009 CADILLAC STS Owners Manual

Fuses Usage
ELC EXHElectronic Level Control,
Exhaust Solenoid (Option)
DDMDriver Door Module, Front Door
SubWoofers (Option)
TV/VICS/SCMInfotainment (Export Only),
Supervisory Control Module (Option)
REAR
HTD/SEATSRear Heated Seats
SPARE Spare
SPARE Spare
IGN3Front Passenger Heated Seat,
Auto Shifter, Occupant Protection,
Electronic Tension Reducer for
Seatbelt
REAR SHLF
SPKRRear Shelf Speaker (Option)
MSM Memory Seat Module Lumbar
TRUNK
RELSE SWTrunk Release, Valet Lockout
Switch
BCK/UP LAMPReverse Lamps, Rear Parking Aid,
Inside Rearview Mirrors
AIR BAG/BATT Airbag
POS LAMPS Rear Taillamps
ELC CMPRSR Automatic Level Control (Option)Relays Usage
INCLR PUMP Inner Cooler Pump (Option)
ELC CMPRSRElectronic Level Control,
Compressor (Option)
LT POSLeft Rear Taillamp, Position
Lamps (Option)
RT POSRight Rear Taillamp, Position
Lamps (Option)
RUN Ignition 3
STDBY LAMPRear Taillamps, Position
Lamps (Option)
TRUNK RELSE Trunk Release Motor
BCK/UP LAMPReverse Lamps, Rear Parking Aid,
Inside Rearview Mirror
Circuit
BreakersUsage
PWR SEATS Power Seats
Diodes Usage
SPARE Spare
Joint
ConnectorUsage
J/C Splice Pack (Green)
5-131

Passenger’s Side
Fuses Usage
AIRBAG/IGNSensing and Diagnostic Monitor,
Automatic Occupant Sensor,
Passenger Supplemental Inatable
Restraint
CNSTR/VENT Canister Vent Solenoid
DIFF PUMP Rear Differential PumpFuses Usage
FRT PDMFront Passenger Door Module,
Right Power Subwoofer
FUEL PUMP Fuel Pump
HTD STR Heated Steering Wheel
RF
HTD/SEAT/XMFront Passenger Heated Seat,
S-Band™ Antenna
5-132

Fuses Usage
RDO/ONSTAR Radio, OnStar®
INT LAMP Interior Lamps
LT TRN/LDWLeft Turn Signal, Lane Departure
Warning (Option)
REAR DEFOG Rear Defogger
REAR/FOG Rear Fog Lamps (Option)
RIM Rear Integration Module
RIM /RPA
/ISRVM /CLMRear Integration Module, Rear
Parking Aid, Inside Rearview Mirror,
Column Lock Module, Power
Sounder, Active Front Steering
(AFS), Supervisory Control Module
RUN/CRNKUHBEC Run, CRNK Relay Coil,
Rear Fog Lamp Relay Coil
S/ROOF Sun Roof Module (Option)
SPARE Spare
STOP LAMPS Stop Lamps
RT TRN/SZBARight Turn Signal, Side Blind Zone
Alert (Option)
Relays Usage
DIFF PUMP Rear Differential Pump (Option)
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
BreakersUsage
WINDOW
MTRSPower Window Motors Circuit
Breaker
Diodes Usage
TRUNK DIODE Trunk Release
Joint
ConnectorUsage
J/C Splice Pack (Blue)
5-133

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-13for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134aFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Brake Fluid Capacities 1.1 qt 1.0 L
Cooling System
3.6L Engine 11.2 qt 10.6 L
4.4L (V-Series) Engine 13.4 qt 12.7 L
4.6L Engine 11.7 qt 11.1 L
Cooling System — Intercooler 4.4L (V-Series) Engine 2.6 qt 2.5 L
Engine Oil with Filter
3.6L Engine 6.0 qt 5.7 L
4.4L (V-Series) Engine 9.0 qt 8.5 L
4.6L Engine 8.0 qt 7.6 L
Fuel Tank 17.5 gal 66.2 L
5-134

ApplicationCapacities
English Metric
Transmission Fluid (Pan Removal and Filter Replacement)
6-Speed Automatic 6.7 qt 6.3 L
6-Speed Automatic (V-Series) 6.5 qt 6.2 L
Wheel Nut Torque 100 lb ft 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level as recommended in this
manual. Recheck the uid level after lling.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
3.6L SIDI V6 V Automatic 0.044 in (1.11 mm)
4.4L DOHC V8 (V-Series) D Automatic 0.040 in (1.02 mm)
4.6L DOHC V8 A Automatic 0.050 in (1.27 mm)
STS-V Engine Data
Engine Horsepower Torque Displacement Compression Ratio
4.4L V8 (V-Series)469hp (350 kW) @
6400 rpm439 lb ft (595 Nm) @
3800 rpm4.4L 9.0:1
5-135

✍NOTES
5-136

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using the Maintenance Schedule......................6-3
Scheduled Maintenance...................................6-4
Additional Required Services............................6-6
Maintenance Footnotes...................................6-8Owner Checks and Services..........................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-11
At Least Once a Year...................................6-11
Recommended Fluids and Lubricants...............6-13
Maintenance Replacement Parts.....................6-15
Engine Drive Belt Routing..............................6-16
Maintenance Record.....................................6-18
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements the vehicle warranties. See the Warranty
and Owner Assistance booklet or your dealer/retailer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are necessary
to keep this vehicle in good working condition.
Any damage caused by failure to follow scheduled
maintenance might not be covered by the vehicle
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep the
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even affect
the quality of the air we breathe. Improper uid levels or
the wrong tire ination can increase the level of emissions
from the vehicle. To help protect the environment, and to
keep the vehicle in good condition, be sure to maintain
the vehicle properly.
6-2