radiator BUICK REGAL 2011 Owner's Manual

Black plate (17,1)Buick Regal Owner Manual - 2011
Vehicle Care 10-17
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
When it is safe to lift the hood:
2.0 L L4 Engine
A. Electric Engine Cooling Fans
B. Coolant Surge Tank andPressure Cap 2.4 L L4 Engine
A. Electric Engine Cooling Fans
B. Coolant Surge Tank and
Pressure Cap
{WARNING
An electric engine cooling fan
under the hood can start up even
when the engine is not running
and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{WARNING
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the engine if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
Notice: Using coolant other than
DEX-COOL
®can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant could require changing
sooner, at 50 000 km (30,000 mi)
or 24 months, whichever occurs
first. Any repairs would not be
covered by the vehicle warranty.
Always use DEX-COOL
(silicate-free) coolant in the
vehicle.

Black plate (19,1)Buick Regal Owner Manual - 2011
Vehicle Care 10-19
Notice:If an improper coolant
mixture is used, the engine could
overheat and be badly damaged.
The repair cost would not be
covered by the vehicle warranty.
Too much water in the mixture
can freeze and crack the engine,
radiator, heater core, and other
parts. Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at the
indicated mark, add a 50/50 mixture
of clean, drinkable water and
DEX-COOL coolant at the coolant
surge tank, but be sure the cooling
system is cool before this is done.
The coolant surge tank is located in
the engine compartment on the
driver side of the vehicle. See
Engine Compartment Overview on
page 10‑6
for more information on
location.

Black plate (20,1)Buick Regal Owner Manual - 2011
10-20 Vehicle Care
How to Add Coolant to the
Coolant Surge Tank
Notice:This vehicle has a
specific coolant fill procedure.
Failure to follow this procedure
could cause the engine to
overheat and be severely
damaged.
If no problem is found, check to see
if coolant is visible in the coolant
surge tank. If coolant is visible
but the coolant level is not at the
indicated level mark, add a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant at
the coolant surge tank, but be sure
the cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
{WARNING
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are
under pressure, and if you turn
(Continued)
WARNING (Continued)
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.
{WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
(Continued)
WARNING (Continued)
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or
others could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant.
Notice: In cold weather, water
can freeze and crack the engine,
radiator, heater core and other
parts. Use the recommended
coolant and the proper coolant
mixture.
{WARNING
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. Do not spill
coolant on a hot engine.

Black plate (21,1)Buick Regal Owner Manual - 2011
Vehicle Care 10-21
2.0 L L4 Engine Shown, 2.4 L L4
Engine Similar
1. Remove the coolant surge tankpressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you hear
a hiss, wait for that to stop. This
will allow any pressure still left to
be vented out the
discharge hose.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank withthe proper DEX-COOL coolant
mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you
can feel the upper radiator hose
getting hot. Watch out for the
engine cooling fans.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture to the coolant surge tank until the
level reaches the indicated
level mark.
5. Replace the pressure cap. Be sure the pressure cap is
hand-tight.
Check the level in the coolant surge
tank when the cooling system has
cooled down. If the coolant is not
at the proper level, repeat Steps 1
through 3 and reinstall the pressure
cap. If the coolant still is not at the
proper level when the system cools
down again, see your dealer.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
You will find an engine coolant
temperature gauge on the vehicle's
instrument panel cluster. See
Engine Coolant Temperature Gauge
on page 5‑10.

Black plate (38,1)Buick Regal Owner Manual - 2011
10-38 Vehicle Care
Fuse
Number Usage
16 Vacuum Pump
17 Ignition, Airbag
18 Not Used
19 Not Used
20 Not Used
21 Rear Power
Windows
22 Antilock Brake
System Valve
23 Variable Effort
Steering
24 Front Power
Windows
25 Power Outlets
26 Antilock Brake
System Pump
27 Electric Parking
Brake
28 Heated Rear
Window Fuse
Number Usage
29 Left Hand Seat
Lumbar
30 Right Hand Seat
Lumbar
31 Not Used
32 Body Control
Module 6
33 Heated Front Seats
34 Sunroof
35 Infotainment System
36 Not Used
37 Right Hand
High‐Beam
Headlamp
38 Left Hand
High‐Beam
Headlamp
39 Not Used
40 Not Used
41 Vacuum Pump Fuse
Number Usage
42 Radiator Fan 1
43 Not Used
44 Headlamp Washer
System (if equipped)
45 Radiator Fan 2
46 Terminal 87, Main
Relay
47 Oxygen Sensor
48 Fog Lamps
49 Right Hand Low
Beam, High Intensity
Discharge
Headlamp
50 Left Hand Low
Beam, High Intensity
Discharge
Headlamp
51 Horn
52 Motor
Indicator Lamp