2011 NISSAN ALTIMA HYBRID brakes

acceleration also consumes high voltage battery
power, resulting in poor acceleration. Battery
power can be restored by driving at a constant
speed.
When you put the shift selector in the B (Brake)
position and take your foot off the accelerator
pedal, engine braking will be applied. However,
during high speed driving you may feel that en-
gine braking is less effective than that of an
ordinary vehicle. This is normal.
Because the vehicle is powered by both the
gasoline engine and the traction motor, you may
hear a sound coming from the engine compart-
ment, high voltage battery, transmission or the
regenerative brakes. When the gasoline engine
starts and stops with the Hybrid System on, you
may feel a vibration. When accelerating rapidly,
the engine noise may rise. A noise may also be
heard while braking. These are normal character-
istics of the hybrid vehicle.An air vent is located on the rear parcel shelf
A
to cool the high voltage battery. If the vent is
covered, the battery will overheat resulting in
reduced output performance of the Hybrid Sys-
tem.
You may hear the noise of the cooling fan from the
air vent.CAUTION
Do not place objects over or into the air
vent. The high voltage battery may over-
heat and be damaged.
LHV0004LHV0006
HEV-10HEV Overview

CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Ready operation indicator light(green)
The ready indicator light illuminates when the
Hybrid System is powered and the vehicle may
be driven.
Security indicator light
This light blinks when the ignition switch is
placed in the OFF, LOCK or ACC position.
The blinking security indicator light indicates that
the security systems equipped on the vehicle are
operational.
For additional information, see “Security sys-
tems” later in this section.
Slip indicator light
This indicator light will blink when the traction
control system, Vehicle Dynamic Control System or Anti-lock Braking System is limiting wheel
spin. Slippery road conditions may exist if the slip
indicator blinks on. If this happens, adjust your
driving accordingly.
The slip indicator light also comes on when the
ignition switch is placed in the ON position and
the Hybrid System is in the READY mode. The
light will turn off after about 2 seconds if the
system is operational. If the light does not come
on or does not go off, have the system checked
by a NISSAN dealer.
Turn signal/hazard indicator
lights
The appropriate light flashes when the turn signal
switch is activated.
Both lights flash when the hazard switch is turned
on.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is opened
while the ignition switch is placed in the ACC or
OFF position or placed in the OFF or LOCK
position with the Intelligent Key left in the Intelli-
gent Key port. Make sure the ignition switch is
placed in the LOCK position, and take the Intel-
ligent Key with you when leaving the vehicle.
Light reminder chime
With the ignition switch placed in the OFF posi-
tion, a chime sounds when the driver’s door is
opened if the headlights or parking lights are on.
Turn the headlight control switch off before leav-
ing the vehicle.
NISSAN Intelligent Key™ door buzzer
The Intelligent Key door buzzer sounds if the
Intelligent Key is left inside the vehicle when
locking the doors. When the buzzer sounds, be
sure to check both the vehicle and the Intelligent
Key. See “NISSAN Intelligent Key™” in the “Pre-
driving checks and adjustments” section.
Instruments and controls2-17

avoid driving when tired. Never drive when under
the influence of alcohol or drugs (including pre-
scription or over-the-counter drugs which may
cause drowsiness) . Always wear your seat belt
as outlined in the “Safety – Seats, seat belts and
supplemental restraint system” section of this
manual, and also instruct your passengers to do
so.
Seat belts help reduce the risk of injury in colli-
sions and rollovers.In a rollover crash, an
unbelted or improperly belted person is
significantly more likely to be injured or
killed than a person properly wearing a
seat belt.
OFF-ROAD RECOVERY
If the right side or left side wheels leave the road
surface, maintain control of the vehicle by follow-
ing the procedure below. Please note that this
procedure is only a general guide. The vehicle
must be driven as appropriate based on the con-
ditions of the vehicle, road and traffic.
1. Remain calm and do not overreact.
2. Do not apply the brakes.
3. Maintain a firm grip on the steering wheel with both hands and try to hold a straight
course. 4. When appropriate , slowly release the accel-
erator pedal to gradually slow the vehicle.
5. If there is nothing in the way, steer the ve- hicle to follow the road while vehicle speed
is reduced. Do not attempt to drive the ve-
hicle back onto the road surface until vehicle
speed is reduced.
6. When it is safe to do so, gradually turn the steering wheel until both tires return to the
road surface. When all tires are on the road
surface, steer the vehicle to stay in the ap-
propriate driving lane.
● If you decide that it is not safe to return the
vehicle to the road surface based on vehicle,
road or traffic conditions, gradually slow the
vehicle to a stop in a safe place off the road.RAPID AIR PRESSURE LOSS
Rapid air pressure loss or a “blow-out” can occur
if the tire is punctured or is damaged due to
hitting a curb or pothole. Rapid air pressure loss
can also be caused by driving on under-inflated
tires.
Rapid air pressure loss can affect the handling
and stability of the vehicle, especially at highway
speeds. Help prevent rapid air pressure loss by maintain-
ing the correct air pressure and visually inspect
the tires for wear and damage. See “Wheels and
tires” in the “Maintenance and do-it-yourself”
section of this manual. If a tire rapidly loses air
pressure or “blows-out” while driving, maintain
control of the vehicle by following the procedure
below. Please note that this procedure is only a
general guide. The vehicle must be driven as
appropriate based on the conditions of the ve-
hicle, road and traffic.
WARNING
The following actions can increase the
chance of losing control of the vehicle if
there is a sudden loss of tire air pressure.
Losing control of the vehicle may cause a
collision and result in personal injury.
●
The vehicle generally moves or pulls in
the direction of the flat tire.
● Do not rapidly apply the brakes.
● Do not rapidly release the accelerator
pedal.
● Do not rapidly turn the steering wheel.
1. Remain calm and do not over react.
5-6Starting and driving

WARNING
●If the Hybrid System is not in the READY
mode or is turned off while driving, the
power assist for the steering will not
work. Steering will be harder to
operate.
● When the power steering warning light
illuminates with the Hybrid System in
the READY mode, there will be no
power assist for the steering. You will
still have control of the vehicle but the
steering will be harder to operate. Have
the power steering system checked by a
NISSAN dealer.
The power steering system is designed to pro-
vide power assist while driving to operate the
steering wheel with light force.
When the steering wheel is operated repeatedly
or continuously while parking or driving at a very
low speed, the power assist for the steering
wheel will be reduced. This is to prevent over-
heating of the power steering system and protect
it from getting damaged. While the power assist
is reduced, steering wheel operation will become
heavy. When the temperature of the power steer-
ing system goes down, the power assist level will
return to normal. Avoid repeating such steering wheel operations that could cause the power
steering system to overheat.
You may hear a sound when the steering wheel is
operated quickly. However, this is not a malfunc-
tion.
If the power steering warning light
PSilluminates
while the Hybrid System is in the READY mode, it
may indicate the power steering system is not
functioning properly and may need servicing.
Have the power steering system checked by a
NISSAN dealer.
When the power steering warning light illumi-
nates with the Hybrid System in the READY
mode, there will be no power assist for the steer-
ing but you will still have control of the vehicle. At
this time, greater steering effort is required to
operate the steering wheel, especially in sharp
turns and at low speeds.
For additional information see “Electric power
steering warning light” in the “Instruments and
controls” section.
WARNING
Your brake system may not be working
properly if the hydraulic brake warning
light and the electronically controlled
brake system warning light is on. Driving
could be dangerous. If you judge it to be
safe, drive carefully to the nearest service
station for repairs. Otherwise, have your
vehicle towed because driving it could be
dangerous.
BRAKE PRECAUTIONS
Regenerative brake
The Hybrid System changes vehicle motion into
electricity. The electricity is used to recharge the
high voltage battery. When applying the brakes,
you may hear a sound coming from the regenera-
tive braking system. This is a normal operating
characteristic of a hybrid vehicle.
The regenerative braking works in the following
conditions:
1. When the accelerator pedal is released, the Hybrid System makes electricity while the
vehicle slows down during coasting.
2. When the brake pedal is depressed with the shift selector in “D” or “B”.
POWER STEERING BRAKE SYSTEM
Starting and driving5-19

Hydraulic system
The brake system has separate hydraulic circuits.
If one circuit malfunctions, you will still have brak-
ing at other wheels.
However, the brake pedal will have to be de-
pressed harder and your stopping distance will
increase. The brake system warning light will also
come on.
Brake actuator
The brake actuator uses a pump to provide
power assisted braking.
The brake warning light comes on if the actuator
is not functioning properly. The brake pedal will
be hard to depress and stopping distance will
increase. Depress the brake pedal firmly to stop
the vehicle in a safe place and contact a NISSAN
dealer.
If the brake pedal is depressed repeatedly, the
brake warning light may turn on. However this is
normal if the light turns off after a few seconds.
Noise may be heard in the engine room under the
following conditions. This is a normal operating
characteristic and does not indicate a malfunc-
tion.● When you open a door.
● When the brake pedal is depressed firmly. ●
When the brake pedal is depressed repeat-
edly.
● When the Hybrid System is in the READY
mode.
● When the Hybrid System is turned off.
It may be hard to depress the brake pedal or the
pedal stroke may be short with the Hybrid System
OFF. This is not a malfunction.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brake pads faster, and reduce gas mileage.
To help reduce brake wear and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
When applying the brakes, you may hear a sound
coming from the braking system. This is normal.
WARNING
While driving on a slippery surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or acceler-
ating could cause the wheels to skid and
result in an accident.
Wet brakes
When the vehicle is washed or driven through
water, the brakes may get wet. As a result, your
braking distance will be longer and the vehicle
may pull to one side during braking.
To dry the brakes, drive the vehicle at a safe
speed while lightly pressing the brake pedal to
heat up the brakes. Do this until the brakes return
to normal. Avoid driving the vehicle at high
speeds until the brakes function correctly.
Parking brake break-in
Break-in the parking brake shoes whenever the
stopping effect of the parking brake is weakened
or whenever the parking brake shoes and/or
drum/rotors are replaced, in order to assure the
best brake performance.
This procedure is described in the vehicle service
manual and can be performed by a NISSAN
dealer.
5-20Starting and driving

ANTI-LOCK BRAKING SYSTEM
(ABS)
WARNING
●The Anti-lock Braking System (ABS) is a
sophisticated device, but it cannot pre-
vent accidents resulting from careless
or dangerous driving techniques. It can
help maintain vehicle control during
braking on slippery surfaces. Remem-
ber that stopping distances on slippery
surfaces will be longer than on normal
surfaces even with ABS. Stopping dis-
tances may also be longer on rough,
gravel or snow covered roads, or if you
are using tire chains. Always maintain a
safe distance from the vehicle in front
of you. Ultimately, the driver is respon-
sible for safety.
● Tire type and condition of tires may also
affect braking effectiveness.
– When replacing tires, install the specified size of tires on all four
wheels. – When installing a spare tire, make
sure that it is the proper size and type
as specified on the Tire and Loading
Information label. See “Tire and
Loading Information label” in the
“Technical and consumer informa-
tion” section of this manual.
– For detailed information, see “Wheels and tires” in the “Mainte-
nance and do-it-yourself” section of
this manual.
The Anti-lock Braking System (ABS) controls the
brakes so the wheels do not lock during hard
braking or when braking on slippery surfaces.
The system detects the rotation speed at each
wheel and varies the brake fluid pressure to pre-
vent each wheel from locking and sliding. By
preventing each wheel from locking, the system
helps the driver maintain steering control and
helps to minimize swerving and spinning on slip-
pery surfaces. When the ABS is operating the
SLIP indicator light in the instrument panel will
blink.
Using the system
Depress the brake pedal and hold it down. De-
press the brake pedal with firm steady pressure,
but do not pump the brakes. The ABS will oper-
ate to prevent the wheels from locking up. Steer
the vehicle to avoid obstacles.
WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping
distances.
Self-test feature
The ABS includes electronic sensors, electric
pumps, hydraulic solenoids and a computer. The
computer has a built-in diagnostic feature that
tests the system each time you start the engine
and move the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may hear
a “clunk” noise. This is normal and does not
indicate a malfunction. If the computer senses a
malfunction, it switches the ABS off and illumi-
nates the ABS warning light on the instrument
panel. The brake system then operates normally,
but without anti-lock assistance.
If the ABS warning light illuminates during the
self-test or while driving, have the vehicle
checked by a NISSAN dealer.
Starting and driving5-21

Normal operation
The ABS operates at speeds above4-6MPH(7
- 10 km/h) . The speed varies according to road
conditions.
When the ABS senses that 1 or more wheels are
close to locking up, the actuator rapidly applies
and releases hydraulic pressure. This action is
similar to pumping the brakes very quickly. You
may hear a noise from under the hood or feel a
vibration from the actuator when it is operating.
This is normal and indicates that the ABS is
operating properly. However, if theSLIPindica-
tor light blinks, the road conditions are hazardous
and extra care is required while driving. When accelerating on slippery surfaces the tire
may spin or slip. With the vehicle Traction Control
System (TCS) , sensors detect these movements
and control the braking and engine output to help
improve vehicle road traction.
● When the TCS is operating, the slip indica-
tor in the instrument panel blinks.
● If the slip indicator blinks, the vehicle is may
be under slippery conditions. Be sure to
drive carefully.
● If a malfunction occurs in the system, the
VDC warning light illuminates in the instru-
ment panel.
As long as the VDC warning light is on, the
traction control function is canceled. The vehicle
will behave like a vehicle without the system.
WARNING
● The Traction Control System is de-
signed to help maintain traction with
the road surface but does not prevent
accidents due to abrupt steering opera-
tion at high speeds or by careless or
dangerous driving techniques. Reduce
vehicle speed and be especially careful
when driving and cornering on slippery
surfaces and always drive carefully. ●
If brake related parts such as brake
pads, rotors and calipers are not stan-
dard equipment or are extremely dete-
riorated, the Traction Control System
may not operate properly and the VDC
warning light may come on.
● Do not modify the vehicle’s suspension.
If suspension parts such as shock ab-
sorbers, struts, springs, bushings and
wheels are not standard equipment or
are extremely deteriorated, the Traction
Control System may not operate prop-
erly and the VDC warning light may
come on.
● If wheels or tires other than the recom-
mended ones are used, the Traction
Control System may not operate prop-
erly and the VDC warning light may
come on.
● The Traction Control System is not a
substitute for winter tires or tire chains
on a snow covered road.
TRACTION CONTROL SYSTEM (TCS)
5-22Starting and driving

WARNING
●If the Hybrid System stops operating
while driving, the power assist for the
brakes and steering will not work. Brak-
ing and steering will be harder.
● If the Hybrid System stops operating
while driving, do not open any door until
the vehicle comes to a complete stop.
Opening a door will lock the steering
wheel. This may cause the driver to lose
control of the vehicle and could result in
serious vehicle damage or personal
injury.
The Hybrid System may stop operating while
driving if the high voltage battery becomes dis-
charged, the 12-volt battery becomes dis-
charged or the fuel tank is empty. If the Hybrid
System stops operating while driving, perform
the following: 1. Reduce your speed gradually. Pull to the side of the road to a safe area.
2. Turn on the hazard warning flashers.
3. Set the “POWER” switch at ACC or OFF, and try to start the Hybrid System.
4. If the Hybrid System will not start, see “Ve- hicle does not start” in this section. Before attempting to jump start the vehicle, make
sure the fuel tank is not empty and the correct
starting procedure is followed. See “Starting the
Hybrid System” in the “Starting and driving” sec-
tion. Do not drive the vehicle on battery power
only if the fuel tank is empty. The high voltage
battery will become discharged and the Hybrid
System will turn off.
CONFIRM BATTERY IS
DISCHARGED
Confirm the battery is discharged by pushing the
ignition switch to the ON position. Confirm the
instrument cluster or head lights come on at the
normal brightness levels or that other accesso-
ries such as the audio system come on. Push the
ignition switch to turn the Hybrid System on.
● If the lights do not dim or the accessories do
not turn off, see “Emergency start” in this
section.
● If the lights become dim or the accessories
turn off, check the following:
1. Check that the 12-volt battery terminals are tight and clean. See “12-volt Battery” in the
“Maintenance and do-it-yourself” section.
The battery is located on the right hand side
of the trunk behind an access panel. If the
12-volt battery terminals are loose, contact
your NISSAN dealer. 2. If the 12-volt battery terminals are tight and
clean, try to jump start the vehicle. See
“Jump starting” in this section.
EMERGENCY START
When the Hybrid System cannot be started, the
following procedure can be used if the Hybrid
System and “POWER” switch function normally:
1. Put the transmission in P (Park) position.
2. Push the ignition switch to the ACC posi- tion.
3. Depress the brake pedal.
4. Push and hold the ignition switch for about 15 seconds. Even if the Hybrid System
starts using this procedure, the system may
be malfunctioning. Do not continue to use
this emergency procedure to start the sys-
tem. Have the vehicle checked by your
NISSAN dealer.
If the Hybrid System still does not start, contact
you NISSAN dealer.
HYBRID SYSTEM STOPS OPERATING
WHILE DRIVING VEHICLE DOES NOT START
In case of emergency6-7