2011 CHEVROLET VOLT tires

Black plate (52,1)Chevrolet Volt Owner Manual - 2011
5-52 Instruments and Controls
SERVICE POWER STEERING
This message displays if there is a
problem with the power steering
system. Take the vehicle to your
dealer for service.
SERVICE VEHICLE SOON
This message displays if there is a
problem with the vehicle. Take the
vehicle to your dealer for service.
Depending on the severity of a
crash, this message may come
on along with the airbag readiness
light.
Starting the Vehicle
Messages
PRESS BRAKE TO START
VEHICLE
This message displays when
attempting to start the vehicle
without first pressing the brake
pedal.
PRESS BUTTON AGAIN TO
TURN OFF
This message displays as a
reminder to press the POWER
O
button to turn the vehicle off when
an attempt is made to turn off the
vehicle while it is in motion.
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
This message displays if there is
a problem with the Tire Pressure
Monitor System (TPMS). SeeTire
Pressure Monitor Operation on
page 10‑57 for more information.
TIRE LEARNING ACTIVE
This message displays when
the system is learning new tires.
SeeTire Pressure Monitor
Operation on page 10‑57 for
more information.
TIRE LOW ADD AIR TO TIRE
This message displays when the
pressure in one or more of the tires
is low.
This message also displays
LEFT FRONT, RIGHT FRONT,
LEFT REAR, or 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 5‑27.
If a tire pressure message appears
on the DIC, stop as soon as you
can. Inflate the tires by adding air
until the tire pressure is equal to
the values shown on the Tire and
Loading Information label. See Tires
on page 10‑48, Vehicle Load Limits
on page 9‑14, and Tire Pressure on
page 10‑54.
You can receive more than one
tire pressure message at a time.
The DIC also shows the tire
pressure values. See Driver
Information Center (DIC) on
page 5‑43.

Black plate (75,1)Chevrolet Volt Owner Manual - 2011
Infotainment System 7-75
When the vehicle is not receiving
signals from the satellites, a symbol
appears on the map screen. See
Navigation Symbols on page 7‑47.
This system might not be available
or interferences can occur if any of
the following is true:
.Signals are obstructed by tall
buildings, trees, large trucks,
or a tunnel.
.Satellites are being repaired or
improved.
For more information if the GPS
is not functioning properly, see
“If the System Needs Service” and
“Problems with Route Guidance.”
Vehicle Positioning
At times, the position of the vehicle
on the map could be inaccurate
due to one or more of the following
reasons:
.The road system has changed.
.The vehicle is driving on slippery
road surfaces such as in sand,
gravel, and/or snow.
.The vehicle is traveling on
winding roads or long straight
roads.
.Approaching a tall building or a
large vehicle.
.The surface streets run parallel
to a freeway.
.The vehicle has been transferred
by a vehicle carrier or a ferry.
.The current position calibration
is set incorrectly.
.The vehicle is traveling at high
speed.
.The vehicle changes directions
more than once, or the vehicle
is turning on a turn table in a
parking lot.
.The vehicle is entering and/or
exiting a parking lot, garage,
or a lot with a roof.
.The GPS signal is not received.
.A roof carrier is installed on the
vehicle.
.Tire chains have been installed.
.The tires are replaced or worn.
.The tire pressure for the tires is
incorrect.
.This is the first navigation use
after the map data is updated.
.The 12-volt battery is
disconnected for several days.
.The vehicle is driving in heavy
traffic where driving is at low
speeds, and the vehicle is
stopped and started repeatedly.

Black plate (4,1)Chevrolet Volt Owner Manual - 2011
9-4 Driving and Operating
Maintenance
Always keep the tires properly
inflated and the vehicle properly
aligned.
The weight of excess cargo in the
vehicle affects efficiency and range.
Avoid carrying more than is needed.
If fuel is not regularly used, consider
keeping the fuel tank only one‐third
full. Excess fuel weight impacts
efficiency and range.
Use premium fuel.
Avoid unnecessary use of electrical
accessories. Power used for
functions other than propelling
the vehicle will reduce EV range.
Using a rooftop carrier will reduce
efficiency due to additional weight
and drag.Defensive Driving
Defensive driving means“always
expect the unexpected.” The first
step in driving defensively is to wear
the safety belt. See Safety Belts on
page 3‑10.
{WARNING
Assume that other road users
(pedestrians, bicyclists, and other
drivers) are going to be careless
and make mistakes. Anticipate
what they might do and be ready.
In addition:
.Allow enough following
distance between you and
the driver in front of you.
.Focus on the task of driving.
Driver distraction can cause
collisions resulting in injury or
possible death. These simple
defensive driving techniques
could save your life.
Drunk Driving
{WARNING
Drinking and then driving is
very dangerous. Your reflexes,
perceptions, attentiveness, and
judgment can be affected by
even a small amount of alcohol.
You can have a serious —or
even fatal —collision if you
drive after drinking.
Do not drink and drive or ride with
a driver who has been drinking.
Ride home in a cab; or if you are
with a group, designate a driver
who will not drink.
Death and injury associated with
drinking and driving is a global
tragedy.

Black plate (5,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-5
Alcohol affects four things that
anyone needs to drive a vehicle:
judgment, muscular coordination,
vision, and attentiveness.
Police records show that
almost 40 percent of all motor
vehicle-related deaths involve
alcohol. In most cases, these
deaths are the result of someone
who was drinking and driving.
In recent years, more than
17,000 annual motor vehicle-related
deaths have been associated with
the use of alcohol, with about
250,000 people injured.
For persons under 21, it is against
the law in every U.S. state to drink
alcohol. There are good medical,
psychological, and developmental
reasons for these laws.
The obvious way to eliminate the
leading highway safety problem is
for people never to drink alcohol
and then drive.Medical research shows that
alcohol in a person's system
can make crash injuries worse,
especially injuries to the brain,
spinal cord, or heart. This means
that when anyone who has been
drinking
—driver or passenger —is
in a crash, that person's chance of
being killed or permanently disabled
is higher than if the person had not
been drinking.
Control of a Vehicle
The following three systems
help to control the vehicle while
driving —brakes, steering, and
accelerator. At times, as when
driving on snow or ice, it is easy to
ask more of those control systems
than the tires and road can provide.
Meaning, you can lose control of the
vehicle.
Adding non‐dealer accessories
can affect vehicle performance.
See Accessories and Modifications
on page 10‑4.
Braking
See Brake System Warning Light on
page 5‑24.
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average reaction time is about
three‐fourths of a second. But that
is only an average. It might be less
with one driver and as long as two
or three seconds or more with
another. Age, physical condition,
alertness, coordination, and
eyesight all play a part. So do
alcohol, drugs, and frustration.
But even in three‐fourths of a
second, a vehicle moving at
100 km/h (60 mph) travels 20 m
(66 ft). That could be a lot of
distance in an emergency, so
keeping enough space between
the vehicle and others is important.

Black plate (7,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-7
Steering Tips
It is important to take curves at a
reasonable speed.
Traction in a curve depends on the
condition of the tires and the road
surface, the angle at which the
curve is banked, and vehicle speed.
While in a curve, speed is the one
factor that can be controlled.
If there is a need to reduce speed,
do it before entering the curve, while
the front wheels are straight.
Try to adjust the speed so you can
drive through the curve. Maintain a
reasonable, steady speed. Wait to
accelerate until out of the curve,
and then accelerate gently into the
straightaway.
Steering in Emergencies
There are times when steering can
be more effective than braking.
For example, you come over a hill
and find a truck stopped in your
lane, or a car suddenly pulls out
from nowhere, or a child darts out
from between parked cars and stops
right in front of you. These problems
can be avoided by braking—if you
can stop in time. But sometimes
you cannot stop in time because
there is no room. That is the time
for evasive action —steering
around the problem.
The vehicle can perform very
well in emergencies like these.
First apply the brakes. See Braking
on page 9‑5. It is better to remove
as much speed as possible from
a collision. Then steer around
the problem, to the left or right
depending on the space available.
An emergency like this requires
close attention and a quick decision.
If holding the steering wheel at
the recommended 9 and 3 o'clock
positions, it can be turned a full
180 degrees very quickly without
removing either hand. But you have
to act fast, steer quickly, and just
as quickly straighten the wheel
once you have avoided the object.
The fact that such emergency
situations are always possible is a
good reason to practice defensive
driving at all times and wear safety
belts properly.

Black plate (8,1)Chevrolet Volt Owner Manual - 2011
9-8 Driving and Operating
Off-Road Recovery
The vehicle's right wheels can drop
off the edge of a road onto the
shoulder while driving.
If the level of the shoulder is
only slightly below the pavement,
recovery should be fairly easy.
Ease off the accelerator and
then, if there is nothing in the way,
steer so that the vehicle straddles
the edge of the pavement.Turn the steering wheel 8 to 13 cm
(3 to 5 in), about one-eighth turn,
until the right front tire contacts
the pavement edge. Then turn the
steering wheel to go straight down
the roadway.
Loss of Control
Let us review what driving experts
say about what happens when the
three control systems
—brakes,
steering, and acceleration —do not
have enough friction where the tires
meet the road to do what the driver
has asked.
In any emergency, do not give up.
Keep trying to steer and constantly
seek an escape route or area of
less danger.
Skidding
In a skid, a driver can lose control of
the vehicle. Defensive drivers avoid
most skids by taking reasonable
care suited to existing conditions,
and by not overdriving those
conditions. But skids are always
possible.
The three types of skids correspond
to the vehicle's three control
systems. In the braking skid,
the wheels are not rolling. In the
steering or cornering skid, too much
speed or steering in a curve causes
tires to slip and lose cornering force.
And in the acceleration skid, too
much throttle causes the driving
wheels to spin.
If the vehicle starts to slide, ease
your foot off the accelerator pedal
and quickly steer the way you
want the vehicle to go. If you start
steering quickly enough, the vehicle
may straighten out. Always be ready
for a second skid if it occurs.

Black plate (9,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-9
Of course, traction is reduced when
water, snow, ice, gravel, or other
material is on the road. For safety,
slow down and adjust your driving
to these conditions. It is important
to slow down on slippery surfaces
because stopping distance is longer
and vehicle control more limited.
While driving on a surface with
reduced traction, try to avoid
sudden steering, acceleration,
or braking, including reducing
vehicle speed by shifting to a lower
gear. Any sudden changes could
cause the tires to slide. You might
not realize the surface is slippery
until the vehicle is skidding. Learn
to recognize warning clues—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
Remember: Antilock brakes help
avoid only the braking skid.Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{WARNING
Wet brakes can cause crashes.
They might not work as well in
a quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
(Continued)
WARNING (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to
drive through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road
is wet enough and you are going
fast enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.

Black plate (10,1)Chevrolet Volt Owner Manual - 2011
9-10 Driving and Operating
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10‑48.
.Turn off cruise control.
Highway Hypnosis
Always be alert and pay attention
to your surroundings while driving.
If you become tired or sleepy, find
a safe place to park the vehicle
and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep interior temperature cool.
.Keep your eyes moving —scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than
driving on flat or rolling terrain.
See “Mountain Mode” underDriver
Selected Operating Modes on
page 9‑26. Tips for driving in
these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
electric drive unit.
.Keep the vehicle in gear when
going down steep or long hills.
{WARNING
Coasting downhill in N (Neutral)
or with the vehicle turned off is
dangerous. The brakes will have
to do all the work of slowing down
the vehicle and could become too
hot. Hot brakes may not be able
(Continued)