2011 NISSAN ALTIMA HYBRID cooling

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

1. Driver temperature control dial
2. Air flow control buttons
3. Passenger temperature control dial
4. DUAL button
5. Rear defrost button
6. Front windshield defrost button
7. Fan speed dial/system OFF button
8. Air recirculation button
9. A/C ON/OFF button
10. AUTO buttonWARNING
●The air conditioner cooling function op-
erates only when the Hybrid System is
in the READY mode. Even if the Hybrid
System is in the READY mode, the cool-
ing function will not operate if the high
voltage battery becomes discharged. ●
Do not leave children or adults who
would normally require the assistance
of others alone in your vehicle. Pets
should also not be left alone. They
could accidentally injure themselves or
others through inadvertent operation of
the vehicle. Also, on hot, sunny days,
temperatures in a closed vehicle could
quickly become high enough to cause
severe or possibly fatal injuries to
people or animals.
● Do not use the recirculation mode for
long periods as it may cause the interior
air to become stale and the windows to
fog up.
Push the ignition switch to the ON position and
wait for the READY light to illuminate, then oper-
ate the controls to activate the air conditioner.
AUTOMATIC OPERATION
Cooling or heating (auto)
This mode may be normally used all year round as
the system automatically works to keep a con-
stant temperature. Air flow distribution and fan
speed are also controlled automatically. 1. Press the AUTO button on.
WHA1171
HEATER AND AIR CONDITIONER
(automatic)
Monitor, climate, audio, phone and voice recognition systems4-19

FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply de-
icer through the key hole. If the lock becomes
frozen, heat the key before inserting it into the key
hole or use the remote keyless entry function on
the Intelligent Key.
ANTI-FREEZE
In the winter when it is anticipated that the tem-
perature will drop below 32°F (0°C) , check the
anti-freeze to assure proper winter protection.
For details, see “Engine cooling system” and
“Inverter cooling system” in the “Maintenance
and do-it-yourself” section of this manual.
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without anti-
freeze, drain the cooling system, including the
engine block. Refill before operating the vehicle.
For details, see “Changing engine coolant” and
“Changing inverter coolant” in the “Maintenance
and do-it-yourself” section of this manual.
TIRE EQUIPMENT
1. SUMMER tires have a tread designed toprovide superior performance on dry pave-
ment. However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your ve- hicle on snowy or icy roads, NISSAN recom-
mends the use of MUD & SNOW or ALL
SEASON TIRES on all four wheels. Please
consult a NISSAN dealer for the tire type,
size, speed rating and availability informa-
tion.
2. For additional traction on icy roads, studded tires may be used. However, some U.S.
states and Canadian provinces prohibit their
use. Check local, state and provincial laws
before installing studded tires.
Skid and traction capabilities of studded
snow tires on wet or dry surfaces may be
poorer than that of non-studded snow tires. 3. Tire chains may be used. For details, see “Tire chains” in the “Maintenance and do-it-
yourself” section of this manual.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items be
carried in the vehicle during winter:
● A scraper and stiff-bristled brush to remove
ice and snow from the windows and wiper
blades.
● A sturdy, flat board to be placed under the
jack to give it firm support. ●
A shovel to dig the vehicle out of snowdrifts.
● Extra washer fluid to refill the windshield-
washer fluid reservoir.
DRIVING ON SNOW OR ICE
WARNING
● Wet ice (32°F, 0°C and freezing rain) ,
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or “grip” under
these conditions. Try to avoid driving on
wet ice until the road is salted or
sanded.
● Whatever the condition, drive with cau-
tion. Accelerate and slow down with
care. If accelerating or downshifting too
fast, the drive wheels will lose even
more traction.
● Allow more stopping distance under
these conditions. Braking should be
started sooner than on dry pavement.
● Allow greater following distances on
slippery roads.
COLD WEATHER DRIVING
5-24Starting and driving

To start the Hybrid System with a booster battery,
the instructions and precautions below must be
followed.
WARNING
●The engine may start at any time with-
out warning when the ignition is on and
the Hybrid System is in the READY
mode. When Jump starting keep your
hands, clothing, hair and tools away
from fans, belts and any other parts that
can move to avoid personal injury.
● If done incorrectly, jump starting can
lead to a battery explosion, resulting in
severe injury or death. It could also
damage your vehicle.
● Explosive hydrogen gas is always pres-
ent in the vicinity of the battery. Keep all
sparks and flames away from the
battery.
● Do not allow battery fluid to come into
contact with eyes, skin, clothing or
painted surfaces. Battery fluid is a cor-
rosive sulfuric acid solution which can
cause severe burns. If the fluid should
come into contact with anything, imme-
diately flush the contacted area with
water. ●
Keep battery out of the reach of
children.
● The booster battery must be rated at 12
volts. Use of an improperly rated battery
can damage your vehicle.
● Whenever working on or near a battery,
always wear suitable eye protectors (for
example, goggles or industrial safety
spectacles) and remove rings, metal
bands, or any other jewelry. Do not lean
over the battery when jump starting.
● Do not attempt to jump start a frozen
battery. It could explode and cause se-
rious injury.
● Your vehicle has an automatic engine
cooling fan. It could come on at any
time. Keep hands and other objects
away from it.
● Always follow the instructions below.
Failure to do so could result in damage
to the charging system and cause per-
sonal injury.
LCE0143
JUMP STARTING
6-8In case of emergency

3. Get out of the vehicle. Look and listen forsteam or coolant escaping from the radiator
before opening the hood. (If steam or cool-
ant is escaping, turn the Hybrid System off.)
Do not open the hood further until no steam
or coolant can be seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the en-
gine and/or inverter, stand clear to pre-
vent getting burned.
5. Visually check drive belts for damage or looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leaking,
the water pump belt is missing or loose, or
the cooling fan does not run, turn the Hybrid
System off.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine or engine
cooling fan can start at any time. 6. After the engine and inverter cools down,
check the coolant level in the engine and
inverter coolant reservoir tank with the en-
gine running. Add coolant to the engine and
inverter coolant reservoir tank if necessary.
Have your vehicle repaired at a NISSAN
dealer. When towing your vehicle, all State (Provincial in
Canada) and local regulations for towing must be
followed. Incorrect towing equipment could dam-
age your vehicle. Towing instructions are avail-
able from a NISSAN dealer. Local service opera-
tors are generally familiar with the applicable laws
and procedures for towing. To assure proper
towing and to prevent accidental damage to your
vehicle, NISSAN recommends having a service
operator tow your vehicle. It is advisable to have
the service operator carefully read the following
precautions:
WARNING
●
Never ride in a vehicle that is being
towed.
● Never get under your vehicle after it has
been lifted by a tow truck.
CAUTION
● When towing, make sure that the trans-
mission, axles, steering system and
powertrain are in working condition. If
any of these conditions apply, dollies or
a flatbed tow truck must be used.
● Always attach safety chains before
towing.
TOWING YOUR VEHICLE
In case of emergency6-11

8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance ..............................8-2
Explanation of general maintenance items .........8-2
Maintenance precautions . . .........................8-5
Engine compartment check locations ................8-7
Engine cooling system .............................8-8
Checking engine coolant level ...................8-9
Changing engine coolant ........................8-9
Inverter cooling system ............................ 8-10
Checking inverter coolant level ..................8-10
Changing inverter coolant ......................8-11
Engine oil ........................................ 8-11
Checking engine oil level .......................8-11
Changing engine oil ........................... 8-12
Changing engine oil filter .......................8-13
Electronically controlled Continuously Variable
Transmission (eCVT) fluid ......................... 8-14
Brake fluid ....................................... 8-14
Brake fluid .................................... 8-14
Windshield-washer fluid ........................... 8-15
Windshield-washer fluid reservoir ...............8-15
12-volt battery ................................... 8-15
Jump starting ................................. 8-16Drive belt
........................................ 8-16
Spark plugs . ..................................... 8-17
Replacing spark plugs ......................... 8-17
Air cleaner ....................................... 8-17
In-cabin microfilter ............................. 8-18
Windshield wiper blades .......................... 8-18
Cleaning ..................................... 8-18
Replacing .................................... 8-18
Brakes .......................................... 8-19
Self-adjusting brakes .......................... 8-19
Brake pad wear indicators ......................8-19
Fuses ........................................... 8-20
Engine compartment ........................... 8-21
Passenger compartment .......................8-22
Battery replacement .............................. 8-23
NISSAN
Intelligent Key™ ....................... 8-23
Lights ........................................... 8-25
Headlights .................................... 8-25
Front park/turn/sidemarker light .................8-25
Exterior and interior lights .......................8-26
Upper tether anchor covers ........................8-30
Removing covers from rear parcel shelf ..........8-30
Installing covers to rear parcel shelf ..............8-31

●On gasoline engine models, the fuel
filter or fuel lines should be serviced by
a NISSAN dealer because the fuel lines
are under high pressure even when the
engine is off.
CAUTION
● Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
● Avoid contact with used engine oil and
coolant. Improperly disposed engine
oil, engine coolant and/or other vehicle
fluids can damage the environment. Al-
ways conform to local regulations for
disposal of vehicle fluid.
● Never leave the engine or the transmis-
sion related component harness con-
nector disconnected while the ignition
switch is in the ON position.
● Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position. ●
Your vehicle is equipped with an auto-
matic engine cooling fan. It may come
on at any time without warning, even if
the ignition key is in the OFF position
and the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
This “Maintenance and do-it-yourself” section
gives instructions regarding only those items
which are relatively easy for an owner to perform.
A genuine NISSAN service manual is also avail-
able. See “Owner’s Manual/Service Manual or-
der information” in the “Technical and consumer
information” section of this manual.
You should be aware that incomplete or improper
servicing may result in operating difficulties or
excessive emissions, and could affect warranty
coverage. If in doubt about any servicing,
have it done by a NISSAN dealer.
8-6Maintenance and do-it-yourself

The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Engine Coolant (blue) and 50% water
to provide year-round anti-freeze and coolant
protection. The anti-freeze solution contains rust
and corrosion inhibitors. Additional engine cool-
ing system additives are not necessary.
WARNING
●Never remove the radiator or coolant
reservoir cap when the engine is hot.
Wait until the engine and radiator cool
down. Serious burns could be caused
by high pressure fluid escaping from
the radiator. See precautions in “If your
vehicle overheats” found in the “In case
of emergency” section of this manual.
● The radiator is equipped with a pres-
sure type radiator cap. To prevent en-
gine damage, use only a genuine
NISSAN radiator cap.
CAUTION
● When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or
equivalent. Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is pre-diluted
to provide antifreeze protection to -34°
F (-37° C) . If additional freeze protec-
tion is needed due to weather where
you operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue) is
used, follow the coolant manufacturer’s
instructions to maintain minimum anti-
freeze protection to -34° F (-37° C) . The
use of other types of coolant solutions
other than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent
may damage the engine cooling
system. ●
The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km) or
7 years. Mixing any other type of cool-
ant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) , includ-
ing Genuine NISSAN Long Life
Antifreeze/Coolant (green) , or the use
of non-distilled water will reduce the
life expectancy of the factory-fill cool-
ant. Refer to the Nissan Service and
Maintenance Guide for more details.
ENGINE COOLING SYSTEM
8-8Maintenance and do-it-yourself