Black plate (22,1)Cadillac STS Owner Manual - 2011
Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor
System (TPMS).
The TPMS warming light
alerts you to a significant
loss in pressure of one of
the vehicles tires.
If the warning light comes on, stop as soon as possible
and inflate the tires to the recommended pressure
shown on the tire loading information label. See
Loading the Vehicle
on page 5‑23. The warning light
will remain on until the tire pressure is corrected.
During cooler conditions, the low tire pressure warning
light may appear when the vehicle is first started and
then turn off. This may be an early indicator that the tire
pressures are getting low and the tires need to be
inflated to the proper pressure.
The TPMS does not replace normal monthly tire
maintenance. It is the driver ’s responsibility to maintain
correct tire pressures.
See Tire Pressure Monitor System
on page 6‑60and
Tire Pressure Monitor Operation on page 6‑62.
Tire Sealant and Compressor Kit
This vehicle may come with a jack and spare tire or a
tire sealant and compressor kit. The kit can be used to
seal small punctures in the tread area of the tire.
See Tire Sealant and Compressor Kit (Without Selector
Switch)
on page 6‑76or Tire Sealant and Compressor
Kit (With Selector Switch)on page 6‑85for complete
operating information.
If the vehicle came with a jack and spare tire, see
Changing a Flat Tire on page 6‑94.
Engine Oil Life System
The engine oil life system calculates engine oil life
based on vehicle use and displays a DIC message
when it is necessary to change the engine oil and filter.
The oil life system should be reset to 100% only
following an oil change.
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Black plate (23,1)Cadillac STS Owner Manual - 2011
Resetting the Oil Life System
1. Press the up or down arrow to scroll the DIC toshow OIL LIFE.
2. Once the XXX% ENGINE OIL LIFE menu item is highlighted, press and hold the RESET button until
the percentage shows 100%.
If the percentage does not return to 100% or if the
CHANGE ENGINE OIL SOON message comes
back on when the vehicle is started, the engine oil
life system has not reset. Repeat the procedure.
See Engine Oil Life System on page 6‑20.
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some
driving tips to get the best fuel economy possible.
.Avoid fast starts and accelerate smoothly.
.Brake gradually and avoid abrupt stops.
.Avoid idling the engine for long periods of time.
.When road and weather conditions are
appropriate, use cruise control, if equipped.
.Always follow posted speed limits or drive more
slowly when conditions require.
.Keep vehicle tires properly inflated.
.Combine several trips into a single trip.
.Replace the vehicle's tires with the same TPC
Spec number molded into the tire's sidewall near
the size.
.Follow recommended scheduled maintenance.
Roadside Service
U.S. or Canada: 1-800-882-1112
TTY Users: 1-888-889-2438
As the owner of a new Cadillac, you are automatically
enrolled in the Roadside Service program which is
available 24 hours a day, 365 days a year to give minor
repair information or make towing arrangements.
For more information see Roadside Service
on
page 1‑23.
Roadside Service and OnStar
If you have a current OnStar subscription, press
the
Qbutton and the current GPS location will be sent
to an OnStar Advisor who will assess your problem,
contact Roadside Service, and relay exact location to
get you the help you need.
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Black plate (74,1)Cadillac STS Owner Manual - 2011
BATTERY VOLTS
This display shows the current battery voltage. If the
voltage is in the normal range, the value will display.
For example, the display may read 13.2 BATTERY
VOLTS. If the voltage is low, the display will have
LOW after it. If the voltage is high, the display will have
HIGH after it. Your vehicle's charging system regulates
voltage based on the state of the battery. The battery
voltage may fluctuate when viewing this information
on the DIC. This is normal. SeeCharging System Light
on page 4‑57for more information.
If there is a problem with the battery charging system,
the DIC may display a message. See DIC Warnings
and Messages
on page 4‑76and Electric Power
Managementon page 4‑37for more information.
Tire Pressure
This display shows the pressure for each tire in either
pounds per square inch (psi) or kilopascals (kPa). If the
tire pressure is normal, the value will display. If the tire
pressure is low, LOW will appear on the display with the
value. See Inflation - Tire Pressure
on page 6‑58and
DIC Warnings and Messageson page 4‑76for more
information. Press the information button to scroll
through the following displays:
LF TIRE: This display shows the pressure in the driver
side front tire. RF TIRE:
This display shows the pressure in the
passenger side front tire.
LR TIRE: This display shows the pressure in the driver
side rear tire.
RR TIRE: This display shows the pressure in the
passenger side rear tire.
If the tire pressure display shows dashes instead of a
value, there may be a problem with your vehicle. If this
consistently occurs, see your dealer for service.
ENGINE OIL LIFE
If your vehicle has this display, it shows the estimated
oil life remaining. If you see 99% ENGINE OIL LIFE on
the display, that means that 99% of the current oil life
remains.
When the oil life is depleted, the CHANGE ENGINE OIL
SOON message will appear on the display. Change the
oil as soon as possible. In addition to the engine oil life
system monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. See Scheduled Maintenance
on page 7‑3andEngine Oil on page 6‑16.
After an oil change, reset the ENGINE OIL LIFE display.
To reset, see Engine Oil Life System
on page 6‑20.
The display will show 100% ENGINE OIL LIFE after it
has been reset. Also clear the CHANGE ENGINE OIL
SOON message from the display.
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Black plate (78,1)Cadillac STS Owner Manual - 2011
BATTERY VOLTAGE LOW
This symbol appears
with this message.
This message displays when the electrical system is
charging less than 10 volts or the battery has been
drained.
If this message appears immediately after starting
the engine, it is possible that the generator can still
recharge the battery. The battery should recharge while
driving, but may take a few hours to do so. Consider
using an auxiliary charger to boost the battery after
returning home or to a final destination. Follow the
manufacturer's instructions.
If this message appears while driving or after starting
your vehicle and stays on, have it checked immediately
to determine the cause of this problem.
To help the generator recharge the battery quickly,
reduce the load on the electrical system by turning
off the accessories. The normal battery voltage range is 11.5 to 15.5 volts.
To monitor battery voltage on the DIC, press the
information button until BATTERY VOLTS displays.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs
to be changed. See your dealer. See
Engine Oilon
page 6‑16and Scheduled Maintenanceon page 7‑3for more information.
After resetting the CHANGE ENGINE OIL SOON
message by clearing it from the display, reset the
engine oil life system separately. For more information
on resetting the engine oil life system, see Engine Oil
Life System on page 6‑20.
CHECK BRAKE FLUID
This message displays if the ignition is on to inform the
driver that the brake fluid level is low. Have the brake
system serviced by your dealer as soon as possible.
See Brake System Warning Light
on page 4‑58for
more information.
CHECK GAS CAP
This message displays when the fuel cap has not been
fully tightened. Recheck the fuel cap to ensure that it is
on and tightened properly.
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Black plate (46,1)Cadillac STS Owner Manual - 2011
How to Check Lubricant
A. Drain Plug
B. Filler Plug
To get an accurate reading, the vehicle should be on a
level surface.
If the level is below the bottom of the filler plug hole,
located on the front axle, you may need to add some
lubricant.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Recommended Fluids and
Lubricants on page 7‑9.
Headlamp Aiming
Headlamp aim has been preset at the factory and
should need no further adjustment.
However, if your vehicle is damaged in a crash, the
headlamp aim may be affected. Aim adjustment to the
low-beam headlamps may be necessary if oncoming
drivers flash their high-beam headlamps at you (for
vertical aim).
If the headlamps need to be re-aimed, it is
recommended that you take the vehicle to your dealer
for service.
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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.
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