2001 CADILLAC SEVILLE oil temperature

2-26
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is located on the driver's side of
the engine, behind the transaxle dipstick/fluid fill
location (C) and next to the engine.
3. Plug it into a normal, grounded 110
-volt AC outlet.
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three
-prong
11 0
-volt AC outlet. If the cord won't reach, use a
heavy
-duty three-prong extension cord rated for
at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it away
from moving engine parts. If you don't, it could
be damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your dealer in the area where you'll be parking your
vehicle. The dealer can give you the best advice for that
particular area.

2-89
Driver Information Center (DIC)
This display gives you the status of many of your
vehicle's systems. The DIC is also used to display driver
personalization features and warning/status messages.
DIC Controls and Displays
INFO: Pressing this button up or down will display the
OUTSIDE TEMP, MILES RANGE, MPG AVG, MPG
INST, GAL FUEL USED, AVG MPH, TIMER, BATTERY
VOLTS, ENGINE OIL LIFE, TRANS FLUID LIFE,
PHONE (Option) and FEATURE PROGRAMMING.INFO RESET: Pressing this button will reset the
MPG AVG, GAL FUEL USED, MPH AVG, TIMER,
ENGINE OIL LIFE, and TRANS FLUID LIFE.
For more information about the trip odometer, see
ªOdometerº in the Index.
ON/OFF: Pressing this button turns the Programming
and Personalization Features on and off. (FEATURE
PROGRAMMING must be displayed on the DIC to
begin actual programming.) This button also starts and
stops the timer.
OUTSIDE TEMP: This message shows the outside
temperature. After this display has been on the DIC for
about five seconds, the words OUTSIDE TEMP will
disappear so that only the temperature remains.
MILES RANGE: This message shows about how many
miles you can drive without refilling your fuel tank.
Once the range drops below 40 miles (64 km)
remaining, the display will show LOW.
MPG AVG (Reset): This message shows the
approximate fuel economy you have averaged since the
last time you reset the value. To reset the MPG AVG
(Average Fuel Economy), press the INFO button to
display the MPG AVG then press and hold the INFO
RESET button until 0.0 MPG AVG is displayed.

2-96
ENGINE HOT-AC OFF - 16: This message displays
when the engine coolant becomes hotter than the normal
operating temperature. To avoid added strain on a hot
engine, the air conditioning compressor is automatically
turned off. When the coolant temperature returns to
normal, the A/C operation will automatically resume.
You can continue to drive your vehicle. If this message
continues to appear, have the system repaired as soon as
possible to avoid compressor damage.
ENGINE OVERHEATED, STOP ENGINE
- 42: This
message will appear when the engine has overheated.
Stop and turn the engine off immediately to avoid severe
engine damage. See ªEngine Overheatingº in the Index.
A multiple chime will also sound when this message
is displayed.
ENGINE POWER REDUCED
- 41: This message
informs you that the vehicle is reducing engine power
because the transaxle is being placed in gear under
conditions that may cause damage to the vehicle's
engine, transaxle or ability to accelerate.
FUEL LEVEL LOW
- 11 : This message serves as
a warning that the fuel level in the tank is critically low.
Stop for fuel soon. A single chime will also sound when
this message is displayed.HEADLAMPS SUGGESTED
- 23: If it's dark enough
outside and the headlamps and the Twilight Sentinel

controls are off, a HEADLAMPS SUGGESTED
message will display on the DIC. This message
informs the driver that turning on the exterior lamps is
recommended even though the Daytime Running Lamps
(DRL) are still illuminated. It has become dark enough
outside to require the headlamps and/or other exterior
lamps. This message will also appear if the optional
Rainsense wiping feature is on and the Twilight
Sentinel

is off.
ICE POSSIBLE
- 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.
LEFT REAR DOOR AJAR
- 142: The left rear door
is open or ajar when this message appears. The ignition
must be in ON and the transaxle not in PARK (P) for
this message to display. A chime will also sound when
the vehicle's speed is greater than 3 mph (4.8 km/h).
OIL PRESSURE LOW STOP ENGINE
- 35: If this
message appears while the engine is running, stop the
engine and do not operate it until the cause of low oil
pressure is corrected. Severe damage to the engine can
result. A multiple chime will also sound when this
message is displayed.

2-107
Oil Life Indicator
This feature lets you know when to change the engine
oil. It's based on the engine oil temperatures and your
driving patterns. To see the display, press the INFO
button several times until ENGINE OIL LIFE appears.
If you see 99% ENGINE OIL LIFE, 99 percent of your
current oil life remains.The DIC may display a CHANGE ENGINE OIL
message. Always keep a written record of the mileage
and date when you changed your oil. For more
information, see the Maintenance Schedule booklet.
If you see CHANGE ENGINE OIL, it means the
oil life is gone and you should change the oil right away.
The system doesn't check how much oil you have,
so you'll still have to check for that. To see how, see
ªEngine Oilº in the Index.
When the oil is changed, you'll need to reset the system.
See ªOil Life Indicator, How to Resetº in the Index.

5-9
Towing Your Vehicle
Consult your dealer or a professional towing service if
you need to have your vehicle towed. See ªRoadside
Assistanceº and ªRecreational Vehicle Towingº in
the Index.
Engine Overheating
You will find an ENGINE COOLANT HOT, IDLE
ENGINE message or an ENGINE OVERHEATED,
STOP ENGINE message on the Driver Information
Center (DIC). There is also an engine temperature
warning light and/or gage on the instrument panel.
See ªEngine Coolant Temperature Warning Lightº
or ªEngine Coolant Temperature Gageº in the Index.
Overheated Engine Protection
Operating Mode
Should an overheated engine condition exist and the
message ENGINE OVERHEATED, STOP ENGINE is
displayed, an overheat protection mode which alternates
firing groups of cylinders helps prevent engine damage.
In this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle
to be driven to a safe place in an emergency; you may
drive up to 50 miles (80 km). Towing a trailer in the
overheat protection mode should be avoided.
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and reset
the oil life indicator. See ªEngine Oilº in the Index.

6-15
As in the chart shown previously, SAE 5W-30 is best for
your vehicle. However, you can use SAE 10W
-30 if it's
going to be 0F (
-18C) or above. These numbers on
an oil container show its viscosity, or thickness. Do not
use other viscosity oils, such as SAE 20W
-50.
NOTICE:
Use only engine oil with the American
Petroleum Institute Certified For Gasoline
Engines starburst symbol. Failure to use the
recommended oil can result in engine damage
not covered by your warranty.
GM Goodwrench
oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20F (-29C), consider using either an SAE 5W-30
synthetic oil or an SAE 0W
-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are all you will need for good
performance and engine protection.
When to Change Engine Oil
Your vehicle has a computer that lets you know when to
change your engine oil. This is not based on mileage,
but on engine revolutions and engine operating
temperature. When the computer has calculated that the
oil needs changing, the GM Oil Life System will
indicate that a change is necessary. The mileage between
oil and filter changes will vary depending on how you
drive your vehicle
-- usually between 3,000 miles
(5 000 km) and 10,000 miles (16 000 km) since your
last oil and filter change. Under severe conditions, the
system may come on before 3,000 miles (5 000 km).
Never drive your vehicle more than 10,000 miles
(16 000 km) or 12 months (whichever occurs first)
without an oil change.
The system won't detect dust in the oil. So, if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner. Remember to
reset the Oil Life Indicator whenever the oil is changed.

6-20
Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:

In heavy city traffic where the outside temperature
regularly reaches 90F (32C) or higher.

In hilly or mountainous terrain.

When doing frequent trailer towing.

Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require change
until the message CHANGE TRANS FLUID appears
on the Driver Information Center.
See ªScheduled Maintenance Servicesº in the
Maintenance Schedule booklet.
How to Check
Because this operation can be a little difficult,
you may choose to have this done at the dealership
service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading
on the dipstick.
NOTICE:
Too much or too little fluid can damage your
transaxle. Too much can mean that some of the
fluid could come out and fall on hot engine parts
or exhaust system parts, starting a fire. Be sure
to get an accurate reading if you check your
transaxle fluid.

6-24
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see ªEngine Overheatingº in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.