Black plate (3,1)Cadillac STS Owner Manual - 2011
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
on page 7‑9andMaintenance Replacement Partson
page 7‑11. 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
12 000 km/7,500 miles. See Tire Inspection and
Rotation on page 6‑65.
Scheduled Maintenance
When the Change Engine Oil Soon
Message Displays
Change engine oil and filter. See Engine Oilon
page 6‑16. 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
might not indicate the need for vehicle service for more
than a 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 on page 6‑20.
When the Change Engine Oil Soon message displays,
certain services, checks, and inspections are required.
7-3
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 (7,1)Cadillac STS Owner Manual - 2011
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid and filter change
(normal service). SeeAutomatic Transmission
Fluid on page 6‑23.
.All‐wheel drive only: Transfer case fluid change
(normal 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.
.Spark plug replacement and spark plug wires
inspection. An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill
(or every five years, whichever occurs first). See
Engine Coolant
on page 6‑25.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.
Owner Checks and Services
Starter Switch Check
{WARNING:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough room around the vehicle.
2. Firmly apply both the parking brake and the regular brake. See Parking Brake on page 3‑33.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral). If the
vehicle starts in any other position, contact your
dealer for service.
7-7
Black plate (5,1)Cadillac STS Owner Manual - 2011
E
EDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 6-114
Electrical SystemFuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . 6-115
Headlamp Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-115
Power Windows and Other Power Options . . . . . . 6-115
Rear Underseat Fuse Block . . . . . . . . . . . . . . . . . . . . .6-120
Underhood Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . 6-116
Windshield Wiper Fuses . . . . . . . . . . . . . . . . . . . . . . . . . 6-115
Engine
Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Check and Service Engine Soon Light . . . . . . . . . . . . 4-62
Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Coolant Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 4-61
Coolant Temperature Warning Light . . . . . . . . . . . . . . 4-61
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Overheated Protection Operating Mode . . . . . . . . . . 6-32
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20 Enhanced StabiliTrak
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Event Data Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Extender, Safety Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . 4-35
F
Filter Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Finish Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-113
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-74
Flat Tire, Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Flat Tire, Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-103
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
Fluid Automatic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
Windshield Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
Fog Lamps Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . .4-6
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Front Fog Lamps
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
i - 5
Black plate (8,1)Cadillac STS Owner Manual - 2011
Lights (cont.)Engine Coolant Temperature Warning . . . . . . . . . . . . 4-61
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Front Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Highbeam On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68
Lane Departure Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Lights On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . 4-55
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Traction Control System (TCS) Warning . . . . . . . . . . 4-60
Limited-Slip Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Loading Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Lockout Switch, Valet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Locks Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Programmable Automatic Door Locks . . . . . . . . . . . . 3-14
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Lower Anchors and Tethers for Children . . . . . . . . . . . 2-45
Lumbar Power Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3M
Maintenance Schedule
Maintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . 7-11
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . 7-7
Recommended Fluids and Lubricants . . . . . . . . . . . . . 7-9
Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . 4-62
Memory Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Memory Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Memory Seat, Mirrors, Steering Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Memory Steering Wheel Controls . . . . . . . . . . . . . . . . . . 3-75
Message DIC Warnings and Messages . . . . . . . . . . . . . . . . . . . . . 4-76
Mirrors
Automatic Dimming Rearview . . . . . . . . . . . . . . . . . . . . . 3-37
Manual Rearview Mirror with Compass andTemperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Outside Automatic Dimming Mirror . . . . . . . . . . . . . . . . 3-39
Outside Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Outside Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Outside Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-108
i - 8
Black plate (9,1)Cadillac STS Owner Manual - 2011
N
Navigation System, Privacy . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Navigation/Radio System, see NavigationManual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-113
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
O
Object Detection, Side Blind Zone Alert (SBZA) . . . 3-44
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66
Older Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Online Owner Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
OnStar, Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
OnStar
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Operation, Universal Home Remote System . . . . . . . 3-49
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
Outlets Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42 Outside
Automatic Dimming Mirror . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Overheated Engine Protection Operating Mode . . . . 6-32
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Owners, Canadian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
P
Paint, Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-113
Parade Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Park Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Park Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Park Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Parking Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 4-55
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . 4-50
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . 2-66
Passing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Perchlorate Materials Requirements, California . . . . . .6-5
i - 9