See also:

Silencing the horn beep feature
If desired, the horn beep feature can be deactivated using the Intelligent Key. To deactivate: Press and hold the and buttons for at least 2 seconds. The hazard warning lights will flash 3 tim ...

The Inside
Even though its swoopy styling might suggest limited cabin space, the five-seat Altima has sufficient room in both the front and rear seats. The optional leather front bucket seats are comfortable ...

Three-way catalyst
The three-way catalyst is an emission control device installed in the exhaust system. Exhaust gases in the three-way catalyst are burned at high temperatures to help reduce pollutants. - Th ...