1996 CADILLAC SEVILLE heating

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Engine Overheating
You will find an ENGINE COOLANT HOT-IDLE
ENGINE message
or a STOP ENGINE ENGINE
OVERHEATED message on the Driver Information
Center. There is also an engine temperature warning
light on the instrument panel. See “Engine Temperature
Warning Light”
in the Index.
Overheated Engine Protecaon Operating
Mode
Should a low coolant condition exist and the message
STOP ENGINE ENGINE OVERHEATED is displayed,
an overheat protection mode which alternates firing
groups
of four cylinders helps prevent engine damage.
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 may be
severely degraded. Change the
oil and reset the
oil life indicator. See “Engine Oil, When to
Change” in the Index.
5-15

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Engine damage if you keep running your engine
without coolant isn’t covered
by your warranty.
See “Overheated Engine Protection Operating
Mode’? in the Index.
If there seems to be no leak, with the engine
on, check to
see if
the electric engine fans are running. If the engine
is overheating, both
fans should be running. If they
aren’t, your vehicle needs service.
How to Add Coolant to the Coolant Surge
Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the proper level (2.5 inches (60 mm) below the
base of the fill neck), add
a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL TM
antifreeze at the coolant surge tank, but be sure the
cooling system, including the coolant surge tank
pressure cap, is cool before
you do it. (See “Engine
Coolant” in the Index
for more information.)
A CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and
burn you badly. They are
under pressure, and if you turn the coolant surge
tank pressure
cap -- even a little -- they can come
out at high speed. Never turn the
cap when the
cooling system, including the coolant surge tank
pressure cap, is hot. Wait
for the cooling system
and coolant surge tank pressure
cap to cool if you
ever have to turn the pressure cap.
5-20

Downloaded from www.Manualslib.com manuals search engine Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL rm (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain
in your
vehicle
for 5 years or 100,000 miles (1 66 000 km),
whichever occurs first.
The following explains your cooling system and how to
add coolant when it is low.
If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and the proper coolant for
your Cadillac will:
0 Give freezing protection aown to -34°F (-37°C).
0 Give boiling protection up to 265 “F (129 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as they should.
NOTICE:
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If dicated coolant 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.
What to Use
Use a mixture of one-half clean water (preferably
distilled)
and one-half DEX-COOL (orange-colored,
silicate-free) antifreeze that meets
GM Specification
6277M, which won’t damage aluminum
parts. Use
GM Engine Coolant Supplement (sealer)
(GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
A special procedure is required for adding sealer; see the
Cadillac service manual.
(To order a service manual, see
“Service and Owner Publications”
in the Index.)
6-20

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Adding Coolant
If you need more coolant, add the proper mix at the
surge tank, but only when the engine is cool.
I A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Don’t spill coolant on
a hot engine.
c1
When replacing the pressure cap, make sure it is tight.
Surge Tank Pressure Cap
I NOTICE:
.-
The surge tank cap is a 15 psi (105 kPa) ’
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the
cap line up.
If the surge tank pressure cap needs to be replaced, a
General Motors cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops
the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
If your thermostat needs to be replaced, a General
Motors thermostat
is recommended.
6-23

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c4; f **I- *.: C
We don’t make tires. Your new Cadillac comes with
high-quality tires made by
a leading tire manufacturer.
If you ever have questions about your tire warranty and
where
to obtain service, see your Cadillac Warranty
booklet for details.
A CAUTION:
Poorly maintained and improperly used tires are
dangerous.
Overloading your tires can cause
overheating
as a result of too much friction.
You could have an air-out and a serious
accident. See “Loading Your Vehicle” in
the Index.
Underinflated tires pose the same danger as
overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently
to maintain the recommended
pressure. Tire pressure should
be checked
when your tires are cold.
CAUTION: (Continued)
CAUTION: (Continued)
Overinflated tires are more likely to be
cut, punctured or broken
by a sudden
impact
-- such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.
See “Inflation
-- Tire Pressure” in this section
for inflation pressure adjustment
for higher
speed driving.
Inflation -- Tire Pressure
The Tire-Loading Information label which is located on
the
rear edge of the driver’s door, shows the correct
inflation pressures for your tires when they’re cold.
“Cold” means your vehicle has been sitting for at least
three hours or driven no more than a mile.
If you’ll be driving at speeds higher than 100 mph
(160’km/h) where it is legal, raise the cold inflation
pressure of each tire to
35 psi (240 Wa). When you end
this very high-speed driving, reduce the cold inflation
6-36

Downloaded from www.Manualslib.com manuals search engine Driving City
........................................ 4-20
Defensive
.................................... 4- 1
Drunken
..................................... 4-2
Freeway
.................................... 4-21
In a Blizzard .................................. 4-27
IntheRain
.................................. 4-17
Night
...................................... 4-15
In Foreign Countries ........................... 6-3
On Curves
.................................. 4- 10
On Grades While Towing a Trailer
............... 4-37
On Hill and Mountain Roads
.................... 4-23
Through Water
............................... 4- 19
Wet Roads
.................................. 4-17
Winter
...................................... 4-25
With a Trailer
................................ 4-35
DrunkenDriving
................................ 4-2
Dual-Zone Climate Control
........................ 3-5
On Snow and
Ice
.............................. 4-26
ECC ......................................... 3-1
Electrical Equipment. Adding
........... 2.18.3.34. 6.54
Electrical System
............................... 6-54
Electrochromic Daymight Rearview Mirror ..... 2.46. 2.48
Electronic Climate Control
......................... 3-1
Electronic Level Control
......................... 2-87
,Electronic Solar Sensor
........................... 3-5
Engine ........................................ 6-8
Coolant ..................................... 6-20
Coolant Heater
............................... 2- I9
Coolant Temperature Warning Light .............. 2-71 Exhaust
..................................... 2-29
FuseBlock
.................................. 6-55
Identification
................................ 6-53
Overheating
.................................. 5-15
Running While Parked
.......................... 2-30
Specifications
................................ 6-63
Engine Coolant Hot-Idle Message
.................. 2-82
Engineoil
..................................... 6-9
Adding ..................................... 6-10
Additives
................................... 6-12
Checking
................................... 6-10
Used
....................................... 6-13
When to Change
.............................. 6-13
Engine
Speed Limiter ............................ 2-65
English/Metric Button
...................... 2-77, 2-80
Ethanol
........................................ 6-3
Exhaust, Engine ................................ 2-29
Express-Down Window
.......................... 2-31
Exterior Lighting Battery Saver
.................... 2-44
StartingYour
................................ 2-17
Fabric Cleaning
............................... 6-45
Fan Control. Climate Control System
............ 3.2. 3.5
Filling Your Tank
................................ 6-4
Filter. Air ..................................... 6-14
Finish Care
.................................... 6-49
Finish Damage
................................. 6-51
First (1). Automatic Transaxle
..................... 2-23
Flashers.
. Hazard Warning ......................... 5-1
Flash-To-Pass Feature
........................... 2-33
8-4

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Flat Tire. Changing ............................. 5-25
Floor Mats
.................................... 2-55
Fluid Capacities
................................ 6-64
Foreign Countries. Fuel
........................... 6-3
French Language Manual
11
FrontTowing .............................. 5-8. 5-11
Fuel
.......................................... 6-2
DataPanel
.................................. 2-76
DoorRelease
................................. 6-4
FillingYourTank
.............................. 6-4
Gage
....................................... 2-75
In Foreign Countries ........................... 6-3
Fuel Level Very
Low Message ..................... 2-83
Fuses and Circuit Breakers
....................... 6-55
FOgLamps
.................................... 2-42
.. ...........................
Gages
Fuel
....................................... 2-75
Tachometer
.................................. 2-64
GAWR ....................................... 4-30
Gear Positions. Automatic Transaxle
................ 2-20
GloveBox .................................... 2-52
Gross Axle Weight Rating ........................ 4-30
Gross Vehicle Weight Rating
...................... 4-30
Guide en FranGais
11
GVWR ....................................... 4-30
.. .................................
Halogen Bulbs ................................. 6-29
Hazard Warning Flashers
.......................... 5-1
Head Restraints
................................. 1-6
Headlamps .................................... 2-41
Bulb Replacement
............................ 6-30
Highbow Beam Changer ...................... 2-33
Wiring
..................................... 6-54
Hearing Impaired, Customer Assistance
........ 1 ..... 7-3
Heatedseats .................................... 1-4
Heated Windshield
.............................. 3-12
Heating
....................................... 3-10
High-Beam Headlamps .......................... 2-33
Highway Hypnosis
.............................. 4-23
Hill and Mountain Roads
......................... 4-23
Hitches. Trailer
................................. 4-34
Hood Checking
Things Under ......................... 6-6
Release ...................................... 6-7
Horn ......................................... 2-32
Hydroplaning
.................................. 4-19
Hydraulic Brake Warning Lights
................... 2-67
Ignition Positions
.............................. 2-15
Illuminated
Entry ............................... 2-44
Illuminated Visor Vanity Mirrors
................... 2-55
Inflation. Tire
.................................. 6-36
Instrument Panel ............................... 2-60
Brightness Control
............................ 2-44
Cleaning
.................................... 6-47
Cluster
................................ 2-62, 2-63
Interior Lamps
................................. 2-44
Inadvertent Power Battery Saver
................... 2-45
.................................... J ack. Tire
5-28
Jump Starting ................................... 5-3
8-5

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Net. Convenience .............................. 2-53
Neutral
(N). Automatic Transaxle .................. 2-22
New Vehicle Break-In
........................... 2-15
Nightvision
................................... 4-16
Odometer
.................................... 2-64
Odometer.
Trip Set ......................... 2.77. 2.80
Off-RoadRecovery
............................. 4-12
Oil. Engine
..................................... 6-9
Oil Life Indicator ............................... 2-87
Operation
...................................... 2-7
Overdrive
(0). Automatic Transaxle ................ 2-22
Overheating Engine
............................. 5-15
Owner Publications
............................... 7- 12
Oil Pressure Light
.............................. 2-74
Overheated Engine Protection Operating Mode
....... 5-15
Paint Spotting. Chemical ........................ 6-51
Park
(P)
Automatic Transaxle .......................... 2-2 1
Shifting Into
................................. 2-25
Shifting Out of
............................... 2-28
AtNight
.................................... 2-12
Brake
...................................... 2-24
Brake Indicator Light
.......................... 2-68
Lots
....................................... 2-12
Over Things That
Burn ........................ 2-29
With a Trailer
........................... 4.37. 4.38
Pass Key Not Programmed Message
................ 2-83
Parking Passenger
Temperature Control
..................... 3-9
PASS-Key% .................................. 2-14
PCM Fault Message
............................. 2-83
Power
Antenna Mast Care
............................ 3-36
DoorLocks
................................... 2-4
Option
Fuses ................................ 6-54
Remote Control Mirror ........................ 2-51
Retained Accessory
........................... 2-17
Seatback Recliner
.............................. 1-5
Steering
.................................... 4-10
Steering Fluid
................................ 6-24
Windows ................................... 2-31
Power Seat
..................................... 1-1
Lumbar Controls
.............................. 1-2
Memory Function
.............................. 1-3
Pregnancy,
Use of Safety Belts .................... 1-26
Problems on the Road
............................ 5-1
Programmable Automatic Door Locks
............... 2-4
Publications, Service and Owner
................... 7-11
Pull-Down Feature. Automatic
.................... 2-11
Passing
....................................... 4-13
Radio Reception .............................. 3-34
Radios ............................. 3.15.3.18. 3.26
Rain.
Driving In ................................ 4-17
Rainsense Wipers
............................... 2-35
RAP ......................................... 2-17
ReadingLamps
................................ 2-45
8-7