engine overheat CHEVROLET SILVERADO 2011 2.G Owner's Manual

Black plate (25,1)Chevrolet Silverado Owner Manual - 2011
Vehicle Care 10-25
If Steam is Coming from the
Engine Compartment
{WARNING
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or
hear steam coming from it. Turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you
open the hood.
If you keep driving when the
vehicles engine is overheated,
the liquids in it can catch fire.
You or others could be badly
burned. Stop the engine if it
overheats, and get out of the
vehicle until the engine is cool.(Continued)
WARNING (Continued)
SeeOverheated Engine
Protection Operating Mode
on
page 10‑26
for information on
driving to a safe place in an
emergency.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious
problem.
If there is an engine overheat
warning, but no steam is seen or
heard, the problem may not be too
serious. Sometimes the engine can
get a little too hot when the vehicle:
.Climbs a long hill on a hot day
.Stops after high-speed driving
.Idles for long periods in traffic
.Tows a trailer; see Trailer Towingon page 9‑94.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. If stopped in a traffic jam, apply the brake, shift to N (Neutral);
otherwise, shift to the highest
gear while driving —D (Drive) or
3 (Third).

Black plate (26,1)Chevrolet Silverado Owner Manual - 2011
10-26 Vehicle Care
If the temperature overheat gauge
is no longer in the overheat zone
or an overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally.
If the warning continues, pull
over, stop, and park the vehicle
right away.
If there is no sign of steam, idle
the engine for five minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down. Also, see“Overheated
Engine Protection Operating Mode”
later in this section.Overheated Engine
Protection
Operating Mode
If an overheated engine condition
exists and the ENGINE POWER IS
REDUCED message displays, an
overheat protection mode which
alternates firing groups of cylinders
helps to prevent engine damage.
In this mode, a loss in power and
engine performance will be noticed.
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Driving extended
miles (km) and/or 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 system. See
Engine Oil on page 10‑7.
Engine Fan
If the vehicle has a clutched
engine cooling fan, when the
clutch is engaged, the fan spins
faster to provide more air to cool the
engine. In most everyday driving
conditions, the fan is spinning
slower and the clutch is not fully
engaged. This improves fuel
economy and reduces fan noise.
Under heavy vehicle loading,
trailer towing, and/or high outside
temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan
will slow down when additional
cooling is not required and the
clutch disengages.
This fan noise may also be heard
when starting the engine. It will go
away as the fan clutch partially
disengages.

Black plate (48,1)Chevrolet Silverado Owner Manual - 2011
10-48 Vehicle Care
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using
the windshield wipers.
If the overload is caused by an
electrical problem and not snow
or ice, be sure to get it fixed.
Fuses and Circuit
Breakers
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
The wiring circuits in the vehicle
are protected from short circuits
by a combination of fuses, circuit
breakers and fusible thermal links.
This greatly reduces the chance of
fires caused by electrical problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
If you ever have a problem on the
road and don't have a spare fuse,
you can borrow one that has thesame amperage. Just pick some
feature of your vehicle that you can
get along without
–like the radio
or cigarette lighter –and use its
fuse, if it is the correct amperage.
Replace it as soon as you can.
Engine Compartment
Fuse Block
If the vehicle has a diesel engine,
see the Duramax Diesel supplement
for more information.
If the vehicle is a hybrid, see
the hybrid supplement for more
information.
The Engine Compartment Fuse
Block is located in the engine
compartment, on the driver side
of the vehicle.

Black plate (5,1)Chevrolet Silverado Owner Manual - 2011
INDEX i-5
EngineAir Cleaner/Filter . . . . . . . . . . . 10-18
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 5-27
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-20
Coolant Heater . . . . . . . . . . . . . . . 9-37
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-19
Cooling System . . . . . . . . . . . . . 10-19
Cooling System Messages . . . . . . . . . . . . . . . . . . . 5-46
Drive Belt Routing . . . . . . . . . . . . 12-6
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-42
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 10-26
Oil Pressure Gauge . . . . . . . . . . 5-18
Overheated Protection Operating Mode . . . . . . . . . . . 10-26
Overheating . . . . . . . . . . . . . . . . 10-24
Power Messages . . . . . . . . . . . . . 5-47
Pressure Light . . . . . . . . . . . . . . . . 5-32
Running While Parked . . . . . . . . 9-42
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-35 Engine Oil
Life System . . . . . . . . . . . . . . . . . . . 10-9
Messages . . . . . . . . . . . . . . . . . . . . 5-47
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-9
Equipment, Towing . . . . . . . . . . . 9-111
Event Data Recorders . . . . . . . . 13-17
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-9
Extender, Safety Belt . . . . . . . . . . 3-29
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . . 6-3
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . 10-26
Fast Idle System . . . . . . . . . . . . . . . 9-37
Features Memory . . . . . . . . . . . . . . . . . . . . . . . 1-13
Filter Engine Air Cleaner . . . . . . . . . 10-18
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-3
Flashers, Hazard Warning . . . . . . 6-5 Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-81
Flat Tire, Changing . . . . . . . . . . . 10-83
Floor Mats . . . . . . . . . . . . . . . . . . . 10-114
Fluid
AutomaticTransmission . . . . . . . 10-11, 10-14
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-30
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 9-53
Power Steering . . . . . . . . . . . . . 10-27
Washer . . . . . . . . . . . . . . . . . . . . . 10-28
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-6
Folding Mirrors . . . . . . . . . . . . . . . . 2-17
Four-Wheel Drive . . . . . . . 10-32, 9-53
Four-Wheel-Drive Light . . . . . . . . 5-31
Front Axle . . . . . . . . . . . . . . . . . . . . 10-34
Front Fog Lamps Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . 3-11

Black plate (9,1)Chevrolet Silverado Owner Manual - 2011
INDEX i-9
MirrorsAutomatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . 2-19
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-15
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-17
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-18
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-16
Manual Rearview . . . . . . . . . . . . . 2-19
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 2-19
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Trailer Tow . . . . . . . . . . . . . . . . . . . . 2-16
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-65
N
Navigation SystemVehicle Data Recordingand Privacy . . . . . . . . . . . . . . . 13-18
New Vehicle Break-In . . . . . . . . . . 9-32
Noise Control System . . . . . . . . 10-36
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-48
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-16 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-7 Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-5
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . . . 10-9
Engine Oil PressureGauge . . . . . . . . . . . . . . . . . . . . . . 5-18
Messages . . . . . . . . . . . . . . . . . . . . 5-47
Pressure Light . . . . . . . . . . . . . . . . 5-32
Older Children, Restraints . . . . . 3-51
Online Owner Center . . . . . . . . . . 13-6
OnStar
®System . . . . . . . . . . . . . . . 1-35
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Overheated Engine
Protection
Operating Mode . . . . . . . . . . . . . 10-26
Overheating, Engine . . . . . . . . . . 10-24
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 9-38
Shifting Out of . . . . . . . . . . . . . . . . 9-40
Park Tilt Mirrors . . . . . . . . . . . . . . . . 2-19
Parking . . . . . . . . . . . . . . . . . . . . . . . . 9-41 Assist, Ultrasonic . . . . . . . . . . . . . 9-76
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-68
Brake and P (Park)Mechanism Check . . . . . . . . 10-39
Over Things That Burn . . . . . . . 9-41
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-25
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . 3-42
Perchlorate Materials Requirements, California . . . . . 10-3
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-49