Nissan Altima Owners Manual: Controls
Fan control dial
The fan control dial turns the fan on and off, and controls fan speed.
Air flow control buttons
The air flow control buttons allow you to select the air flow outlets.
MAX A/C - Air flows from center and side vents with maximum cooling.
- Air flows from center and side
vents.
- Air flows from center
and side
vents and foot outlets.
- Air flows mainly from foot
outlets.
- Air flows from defroster
outlets and
foot outlets.
- Air flows mainly from
defroster
outlets.
Temperature control dial
The temperature control dial allows you to adjust the temperature of the outlet air. To lower the temperature, turn the dial to the left. To increase the temperature, turn the dial to the right.
Air recirculation b
On position (Indicator light on):
Interior air is recirculated inside the vehicle.
Press the 
button to the ON position
when:
● driving on a dusty road.
● to prevent traffic fumes from entering passenger compartment.
● for maximum cooling when using the air conditioner.
Off position (Indicator light off):
Outside air is drawn into the passenger compartment and distributed through the selected outlet.
Use the off position or normal heater or air conditioner operation.
Air conditioner button
Start the engine, turn the fan control dial to the desired position and press the button to turn on the air conditioner. The indicator light comes on when the air conditioner is operating.
To turn off the air conditioner, press the button again.
The air conditioner cooling function operates only when the engine is running.
Rear window and outside mirror (if so equipped) defroster switch
For more information about the rear window and outside mirror (if so equipped) defroster switch, see “Rear window and outside mirror defroster switch” in the “Instruments and controls” section of this manual.
Heater and Air Conditioner (manual) (if so equipped)
1. Fan speed control / system OFF dial /
air conditioning (A/C) button
2. Air flow control buttons
3. Temperature control dial / MAX A/C
button
4. Air recirculation button
5. Rear window defro ...
Heater operation
Heating
This mode is used to direct heated air to the foot
outlets. Some air also flows from the defrost
outlets and the side vent outlets.
1. Press the button to the OFF
position
for normal h ...
Other materials:
P0139, P0159 HO2S2
Description
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from th ...
Lock-up and select control system
System Diagram
System Description
• The torque converter clutch piston in the torque converter is engaged to
eliminate torque converter slip to
increase power transmission efficiency.
• The torque converter clutch control valve operation is controlled by the
torque converter clutch ...
Using the system
The NISSAN Voice Recognition system allows
hands-free operation of the Bluetooth® Phone
System.
If the vehicle is in motion, some commands may
not be available so full attention may be given to
vehicle operation.
Initialization
When the ignition switch is placed in the ON
position, NISSAN ...