2010 CHEVROLET HHR brakes

Make sure the shift lever is fully in P (Park) before
starting the engine. The vehicle has an automatic
transmission shift lock control system. You have to fully
apply the regular brakes first and then press the shift
lever button before the vehicle can shift from P (Park)
when the ignition key is in ON/RUN. If the vehicle
cannot shift out of P (Park), ease pressure on the shift
lever and push the shift lever all the way into P (Park)
as you maintain brake application. Then press the shift
lever button and then move the shift lever into another
gear. SeeShifting Out of Park (Automatic Transmission)
on page 3‑37.
R (Reverse): Use this gear to back up.
Notice: Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
To rock your vehicle back and forth to get out of snow,
ice, or sand without damaging the transmission, see If
Your Vehicle is Stuck in Sand, Mud, Ice, or Snow
on
page 5‑23. N (Neutral):
In this position, the engine does not
connect with the wheels. To restart the engine when the
vehicle is already moving, use N (Neutral) only. Also,
use N (Neutral) when the vehicle is being towed.
{WARNING:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is firmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.
Notice: Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage the
transmission. The repairs would not be covered by
the vehicle warranty. Be sure the engine is not
running at high speed when shifting the vehicle.
3-29

D (Drive):This position is for normal driving with the
automatic transmission. It provides the best fuel
economy. If you need more power for passing and
you are:
.Going less than about 35 mph (55 km/h), push
the accelerator pedal about halfway down.
.Going about 35 mph (55 km/h), push the
accelerator all the way down.
Downshifting the transmission in slippery road
conditions could result in skidding, see “Skidding”
under Loss of Control on page 5‑15.
I (Intermediate): This position is also used for normal
driving. However, it reduces vehicle speed without using
the brakes for slight downgrades where the vehicle
would otherwise accelerate due to steepness of grade.
If constant upshifting or downshifting occurs while
driving up steep hills, this position can be used to
prevent repetitive types of shifts. You might choose
I (Intermediate) instead of D (Drive) when driving on
hilly, winding roads and when towing a trailer, so that
there is less shifting between gears. PERFORMANCE SHIFTING:
If the vehicle has this
feature, it can detect a change in driving patterns
while in the Intermediate position. If you make an
aggressive driving maneuver, the vehicle's transmission
automatically shifts to the lowest possible gear to
maximize vehicle performance. The vehicle will
automatically return to normal operation when you
return to normal driving patterns.
L (Low): This position reduces vehicle speed more than
I (Intermediate) without actually using the brakes. You
can use it on very steep hills, or in deep snow or mud.
If the shift lever is put in L (Low), the transmission will
not shift into L (Low) until the vehicle is going slowly
enough.
Notice: Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator pedal
may damage the transmission. The repair will not be
covered by the vehicle warranty. If you are stuck, do
not spin the tires. When stopping on a hill, use the
brakes to hold the vehicle in place.
3-30

J(On/Off): Press to turn the cruise control system
on and off. The indicator light on the button comes on
when the cruise control is on and goes off when the
cruise control is turned off.
RES+ (Resume): Press to resume a set speed and to
accelerate the speed.
SET− (Set): Press to set a speed and to decrease the
speed.
To set a speed:
1. Press
Ito turn cruise control on. The indicator
light on the button comes on.
2. Get to the desired speed.
3. Press the SET− control button and release it.
The CRUISE ENGAGED message appears on
the Driver Information Center (DIC) to show the
system is engaged.
4. Take your foot off the accelerator pedal. When the brakes are applied or the clutch pedal is
used, the cruise control shuts off.
If the vehicle is in cruise control and the Traction
Control System (TCS) begins to limit wheel spin, the
cruise control automatically disengages. See
Traction
Control System (TCS)
on page 5‑9and Enhanced
Traction System (ETS)on page 5‑11. When road
conditions allow, the cruise control can be used again.
Resuming a Set Speed
Suppose the cruise control is set at a desired speed
and then the brake is applied. This disengages the
cruise control. To return to the previously set speed,
it is not necessary to go through the set process again.
Once the vehicle is going about 40 km (25 mph) or
more, press the RES+ part of the button briefly.
The vehicle goes back to the previously set speed.
4-9

Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed.1. Disengage the cruise control by applying the brake pedal, but do not turn it off. Accelerate to a higher
speed and reset the cruise control.
2. If the cruise control system is already engaged, press the RES+ button. Hold it there until the
desired speed is reached, and then release the
button. To increase the vehicle speed in small
amounts, press the RES+ button briefly and then
release it. Each time this is done, the vehicle goes
about 1.6 km/h (1 mph) faster.
Reducing Speed While Using Cruise
Control
If the cruise control system is already engaged,
.Push and hold the SET− button until the lower
speed desired is reached, then release it.
.To slow down in small amounts, push the
SET− button briefly. Each time this is done, the
vehicle goes about 1.6 km/h (1 mph) slower.
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase the vehicle
speed. When you take your foot off the pedal, the
vehicle slows down to the cruise control speed you
set earlier.
Using Cruise Control on Hills
How well the cruise control works on hills depends upon
the vehicle speed, load and the steepness of the hills.
When going up steep hills, the accelerator pedal might
need to be applied to maintain the vehicle speed. When
going downhill, the brake might need to be applied or
the vehicle might have to be shifted to a lower gear to
keep the vehicle speed down. When the brakes are
applied the cruise control turns off.
Ending Cruise Control
To end cruise control, step lightly on the brake pedal or
the clutch pedal if the vehicle has a manual
transmission.
Stepping on the brake pedal or clutch pedal will only
end the current cruise control session.
Press
Ito turn the system completely off.
4-10

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/retailer. 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.
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. See
Brake System
Warning Light on page 4‑30.
For vehicles with a Driver Information Center (DIC),
see DIC Warnings and Messages
on page 4‑48for
all brake related DIC messages.
4-31

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. See Traction Control System (TCS)
on
page 5‑9, Enhanced Traction System (ETS)on
page 5‑11, and Electronic Stability Control (ESC)on
page 5‑6.
Adding non‐dealer/non‐retailer accessories can affect
vehicle performance. See Accessories and
Modifications on page 6‑3.
Braking
See Brake System Warning Light on page 4‑30.
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 feet). That could be a lot of distance in an
emergency, so keeping enough space between the
vehicle and others is important.
And, of course, actual stopping distances vary greatly
with the surface of the road, whether it is pavement or
gravel; the condition of the road, whether it is wet, dry,
or icy; tire tread; the condition of the brakes; the weight
of the vehicle; and the amount of brake force applied.
5-3

Avoid needless heavy braking. Some people drive in
spurts, heavy acceleration followed by heavy braking,
rather than keeping pace with traffic. This is a mistake.
The brakes might not have time to cool between hard
stops. The brakes will wear out much faster with a
lot of heavy braking. Keeping pace with the traffic and
allowing realistic following distances eliminates a lot of
unnecessary braking. That means better braking and
longer brake life.
If the engine ever stops while the vehicle is being
driven, brake normally but do not pump the brakes.
If the brakes are pumped, the pedal could get harder
to push down. If the engine stops, there will still be
some power brake assist but it will be used when the
brake is applied. Once the power assist is used up, it
can take longer to stop and the brake pedal will be
harder to push.
If the vehicle has Electronic Stability Control (ESC) and
the 2.0L turbocharged engine, it also has a hydraulic
brake boost feature which supplements the power brake
system to maintain consistent brake performance under
conditions of low brake booster vacuum. Low brake
booster vacuum conditions can include initial start up
after the vehicle has been parked for several hours,
very frequent brake stops, or high altitude driving. When
hydraulic brake boost is active, minor brake pulsation or
movement might be felt but this is normal. If brake pedalfeel changes or the brake pedal feels hard to push, the
system might not be receiving the intended brake boost
and the SVC BRAKE SYSTEM DIC message may be
displayed.
Adding non‐dealer/non‐retailer accessories can affect
vehicle performance. See
Accessories and
Modifications on page 6‑3.
Antilock Brake System (ABS)
The vehicle might have the Antilock Brake System
(ABS), an advanced electronic braking system that
helps prevent a braking skid.
If the vehicle has ABS,
this warning light on the
instrument panel comes
on briefly when the
vehicle is started.
When the engine is started, or when the vehicle begins
to drive away, ABS checks itself. A momentary motor
or clicking noise might be heard while this test is going
on, and it might even be noticed that the brake pedal
moves or pulses a little. This is normal.
5-4

Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that the wheels are slowing down.
If one of the wheels is about to stop rolling, the
computer will separately work the brakes at each wheel.
ABS can change the brake pressure to each wheel, as
required, faster than any driver could. This can help the
driver steer around the obstacle while braking hard.
As the brakes are applied, the computer keeps
receiving updates on wheel speed and controls braking
pressure accordingly.
Remember: ABS does not change the time needed to
get a foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, there will not be enough time to apply the
brakes if that vehicle suddenly slows or stops. Always
leave enough room up ahead to stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal
down firmly and let antilock work. A slight brake pedal
pulsation might be felt or some noise noticed, but this is
normal.
Braking in Emergencies
At some time, nearly every driver gets into a situation
that requires hard braking.
If the vehicle has Electronic Stability Control (ESC)
with Antilock Brake System (ABS), it allows the driver
to steer and brake at the same time. However, if the
vehicle does not have ESC with ABS, the first
reaction—to hit the brake pedal hard and hold it
down —might be the wrong thing to do. The wheels
can stop rolling. Once they do, the vehicle cannot
respond to the driver's steering. Momentum will carry it
in whatever direction it was headed when the wheels
stopped rolling. That could be off the road, into the very
thing the driver was trying to avoid, or into traffic.
If the vehicle does not have ABS, use a “squeeze”
braking technique. This gives maximum braking while
maintaining steering control. Do this by pushing on the
brake pedal with steadily increasing pressure.
In an emergency, you will probably want to squeeze the
brakes hard without locking the wheels. If you hear or
feel the wheels sliding, ease off the brake pedal. This
helps retain steering control. Without ABS, it is different.
See Antilock Brake System (ABS) on page 5‑4.
In many emergencies, steering can help more than
even the very best braking.
5-5