warning CHEVROLET SILVERADO 2011 2.G Repair Manual

Black plate (30,1)Chevrolet Silverado Owner Manual - 2011
5-30 Instruments and Controls
This light can also come on due to
low brake fluid. SeeBrake Fluidon
page 10‑30for more information.
MetricEnglish
This light comes on briefly when the
ignition key is turned to ON/RUN.
If it does not come on then, have it
fixed so it is ready to warn if there is
a problem.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on. (Continued)
WARNING (Continued)
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
If the light comes on while driving,
pull off the road and stop carefully.
The pedal might be harder to push
or might go closer to the floor. It can
take longer to stop. If the light is
still on, have the vehicle towed for
service. See Towing the Vehicle
on
page 10‑101.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Antilock Brake System
(ABS) Warning Light
For vehicles with the Antilock Brake
System (ABS), this light comes on
briefly when the engine is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the
ignition off. If the light comes on
while driving, stop as soon as it is
safely possible and turn the ignition
off. Then start the engine again to
reset the system. If the ABS light
stays on, or comes on again while
driving, the vehicle needs service.
If the regular brake system warning
light is not on, the vehicle still has
brakes, but not antilock brakes.

Black plate (31,1)Chevrolet Silverado Owner Manual - 2011
Instruments and Controls 5-31
If the regular brake system warning
light is also on, the vehicle does not
have antilock brakes and there is
a problem with the regular brakes.
SeeBrake System Warning Light
on page 5‑29.
For vehicles with a Driver
Information Center (DIC), see Brake
System Messages
on page 5‑44for all brake related DIC messages.
If the vehicle is a hybrid, see
the hybrid supplement for more
information.
Four-Wheel-Drive Light
For vehicles equipped with the
four-wheel-drive light, it comes on
when a vehicle with a manual transfer case is shifted into
four-wheel drive and the front
axle engages.
Some delay between the shifting
and the light coming on is normal.
See
Four-Wheel Drive
on
page 9‑53for more information.
Tow/Haul Mode Light
For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
For more information, see Tow/Haul
Mode on page 9‑49.
StabiliTrak®Indicator
Light
For vehicles with the StabiliTrak
system, this light comes on briefly
while starting the engine.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the light comes on and stays
on while driving, there could be a
problem with the StabiliTrak system
and the vehicle might need service.
When this warning light is on, the
StabiliTrak system is off and does
not limit wheel spin.

Black plate (32,1)Chevrolet Silverado Owner Manual - 2011
5-32 Instruments and Controls
The light flashes if the system is
active and is working to assist the
driver with directional control of the
vehicle in difficult driving conditions.
SeeStabiliTrak
®Systemon
page 9‑70for more information.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Tire Pressure Light
For vehicles with a Tire Pressure
Monitor System, this light comes on
briefly when the engine is started.
It provides information about tire
pressures and the Tire Pressure
Monitor System. When the Light is On Steady
This indicates that one or more
of the tires are significantly
underinflated.
A tire pressure message can
accompany the light. See
Tire
Messages
on page 5‑51for more
information. Stop as soon as
possible, and inflate the tires to
the pressure value shown on the
Tire and Loading Information Label.
See Tire Pressure
on page 10‑63for more information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be
a problem with the Tire Pressure
Monitor System. The light flashes
for about a minute and stays on
steady for the remainder of the
ignition cycle. This sequence
repeats with every ignition cycle.
SeeTire Pressure Monitor
Operation
on page 10‑67for
more information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine
oil maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule for changing engine oil.

Black plate (33,1)Chevrolet Silverado Owner Manual - 2011
Instruments and Controls 5-33
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally the indicator light then
goes off.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and it might
have some other system problem.
If the vehicle is a hybrid, see
the hybrid supplement for more
information.
Low Fuel Warning Light
This light, under the fuel gauge,
comes on briefly while the engine
is being started.This light and a chime, if the vehicle
is equipped with a radio, comes on
when the fuel tank is low on fuel.
The Driver Information Center also
displays a
“FUEL LEVEL LOW”
message. See Fuel System
Messages
on page 5‑48for more
information. When fuel is added
this light and message should go
off. If it does not, have the vehicle
serviced by your dealer.
Security Light
For information regarding this light
and the vehicle's security system,
see Anti-Theft Alarm System
on
page 2‑12.
High-Beam on Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer
on page 6‑3for more
information.
Front Fog Lamp Light
For vehicles equipped with fog
lamps, this light comes on when
the fog lamps are in use.

Black plate (34,1)Chevrolet Silverado Owner Manual - 2011
5-34 Instruments and Controls
The light goes out when the fog
lamps are turned off. SeeFog
Lamps
on page 6‑6for more
information.
Cruise Control Light
For vehicles equipped with
cruise control, this light comes on
whenever the cruise control is set.
The light goes out when the cruise
control is turned off. See Cruise
Control
on page 9‑73for more
information.
Information Displays
Driver Information
Center (DIC)
The vehicle has a Driver Information
Center (DIC).
The DIC displays information about
this vehicle. It also displays warning
messages if a system problem is
detected.
All messages will appear in
the DIC display located below the
tachometer in the instrument panel
cluster.
The DIC comes on when the ignition
is on. After a short delay, the DIC
will display the information that was
last displayed before the engine
was turned off. The DIC has different displays
which can be accessed by pressing
the DIC buttons located on the
instrument panel, next to the
steering wheel. If the vehicle does
not have DIC buttons, the trip
odometer reset stem can be used
to access some of the menu items.
The DIC displays trip, fuel, and
vehicle system information, and
warning messages if a system
problem is detected.
The DIC also allows some features
to be customized. See
Vehicle
Personalization (with DIC Buttons)
on page 5‑53for more information.

Black plate (44,1)Chevrolet Silverado Owner Manual - 2011
5-44 Instruments and Controls
SERVICE BATTERY
CHARGING SYSTEM
On some vehicles, this message
displays if there is a problem
with the battery charging system.
Under certain conditions, the
charging system light may also turn
on in the instrument panel cluster.
SeeCharging System Light
on
page 5‑26. Driving with this
problem could drain the battery.
Turn off all unnecessary
accessories. Have the electrical
system checked as soon as
possible. See your dealer.
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with
the brake system warning light if
there is a problem with the brake
system. See Brake System Warning
Light
on page 5‑29. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle and check for the message
on the DIC display. If the message
is still displayed or appears again
when you begin driving, the brake
system needs service as soon as
possible. See your dealer.
SERVICE BRAKES SOON
On some vehicles, this message
displays if there is a problem with
the brake system. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle and check for the message
on the DIC display. If the message
is still displayed or appears again
when you begin driving, the brake
system needs service. See your
dealer.

Black plate (46,1)Chevrolet Silverado Owner Manual - 2011
5-46 Instruments and Controls
RIGHT REAR DOOR OPEN
(Crew Cab)
This message displays and a chime
may sound if the passenger side
rear door is not fully closed and the
vehicle is shifted out of P (Park).
Stop and turn off the vehicle, check
the door for obstructions, and close
the door again. Check to see if the
message still appears on the DIC.
Engine Cooling System
Messages
ENGINE HOT A/C (Air
Conditioning) TURNED OFF
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
SeeEngine Coolant Temperature
Gauge
on page 5‑19. To avoid
added strain on a hot engine,
the air conditioning compressor
automatically turns off. When the
coolant temperature returns to normal, the air conditioning
compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
Notice:
If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible.
See Engine Overheating
on
page 10‑24for more information.
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. See Engine
Coolant Temperature Gauge
on
page 5‑19. See
Overheated Engine Protection
Operating Mode
on page 10‑26for
information on driving to a safe
place in an emergency.
ENGINE OVERHEATED STOP
ENGINE
Notice: If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible.
See Engine Overheating
on
page 10‑24for more information.
This message displays and a
chime may sound if the engine
cooling system reaches unsafe
temperatures for operation. Stop
and turn off the vehicle as soon as
it is safe to do so to avoid severe
damage. This message clears when
the engine has cooled to a safe
operating temperature.

Black plate (47,1)Chevrolet Silverado Owner Manual - 2011
Instruments and Controls 5-47
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil,
be sure to reset the CHANGE
ENGINE OIL SOON message.
SeeEngine Oil Life System
on
page 10‑9for information on how
to reset the message. See Engine
Oil
on page 10‑7and Scheduled
Maintenanceon page 11‑2for
more information.
ENGINE OIL HOT IDLE
ENGINE
This message displays when the
engine oil becomes hotter than the
normal operating temperature. Stop
and allow the vehicle to idle until it
cools down. See Engine Coolant
Temperature Gauge
on page 5‑19.
OIL PRESSURE LOW STOP
ENGINE
Notice: If you drive the vehicle
while the engine oil pressure
is low, severe engine damage
may occur. If a low oil pressure
warning appears on the Driver
Information Center (DIC), stop
the vehicle as soon as possible.
Do not drive the vehicle until the
cause of the low oil pressure is
corrected. See Engine Oil
on
page 10‑7for more information.
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon
as possible and have the vehicle
serviced by your dealer. See Engine
Oil on page 10‑7.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a
chime may sound when the cooling
system temperature gets too hot
and the engine further enters the
engine coolant protection mode.
See Engine Overheating
on
page 10‑24for more information.
This message also displays when
the vehicle's engine power is
reduced. Reduced engine power
can affect the vehicle's ability
to accelerate. If this message
is on, but there is no reduction
in performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
at a reduced speed while this
message is on, but acceleration and
speed may be reduced. Anytime
this message stays on, the vehicle
should be taken to your dealer for
service as soon as possible.

Black plate (50,1)Chevrolet Silverado Owner Manual - 2011
5-50 Instruments and Controls
There are several conditions that
can cause this message to appear.
.If the vehicle is overheating,
which could occur if StabiliTrak
activates continuously for an
extended period of time.
.If the brake system warning
light is on. SeeBrake System
Warning Light on page 5‑29.
.If the stability system takes
longer than usual to complete
its diagnostic checks due to
driving conditions.
.If an engine or vehicle related
problem has been detected
and the vehicle needs service.
See your dealer.
.If the vehicle is shifted into 4LO.
The message turns off as soon
as the conditions that caused the
message to be displayed are no
longer present.
TRACTION CONTROL OFF
If the vehicle has StabiliTrak, this
message displays when the Traction
Control System (TCS) is turned off.
Adjust your driving accordingly. See
StabiliTrak
®Systemon page 9‑70for more information.
Airbag System Messages
SERVICE AIR BAG
This message displays if there is
a problem with the airbag system.
Have your dealer inspect the
system for problems. See Airbag
Readiness Light
on page 5‑22and Airbag Systemon page 3‑31for more information.
Anti-Theft Alarm System
Messages
SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation
on page 2‑14for more
information.
Starting the Vehicle
Messages
FAST IDLE ON
If your vehicle has this feature, this
message displays when the fast idle
feature is on. See Fast Idle System
on page 9‑37for more information.

Black plate (51,1)Chevrolet Silverado Owner Manual - 2011
Instruments and Controls 5-51
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
system is not working properly.
The tire pressure light also flashes
and then remains on during the
same ignition cycle. SeeTire
Pressure Light
on page 5‑32.
Several conditions may cause
this message to appear. See Tire
Pressure Monitor Operation
on
page 10‑67for more information.
If the warning comes on and stays
on, there may be a problem with
the TPMS. See your dealer.
TIRE LEARNING ACTIVE
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays when the system
is re-learning the tire positions on
your vehicle. The tire positions must
be re-learned after rotating the tires
or after replacing a tire or sensor.
See Tire Inspection
on page 10‑71,
Tire Rotationon page 10‑71, Tire
Pressure Monitor Systemon
page 10‑65, and Tire Pressureon
page 10‑63for more information.
TIRE LOW ADD AIR TO TIRE
If the vehicle has the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low. This message
also displays LEFT FRT (left front),
RIGHT FRT (right front), LEFT RR (left rear), or RIGHT RR (right rear)
to indicate the location of the low
tire. The low tire pressure warning
light will also come on. See
Tire
Pressure Light
on page 5‑32.
You can receive more than one
tire pressure message at a time.
To read the other messages that
may have been sent at the same
time, press the set/reset button or
the trip odometer reset stem. If a
tire pressure message appears on
the DIC, stop as soon as you can.
Have the tire pressures checked
and set to those shown on the Tire
Loading Information label. See Tires
on page 10‑55,Vehicle Load Limitson page 9‑23, and Tire Pressureon
page 10‑63. The DIC also shows the
tire pressure values. See Driver
Information Center (DIC)
on
page 5‑34.