Compass (if so equipped)
When the ignition switch is turned to the ON position, the compass display B will indicate the direction of the vehicle’s heading.
If the display reads “C”, calibrate the compass by driving the vehicle in 3 complete circles at less than 5 MPH (8 km/h). You can also calibrate the compass by driving your vehicle on your everyday route. The compass will be calibrated once it has tracked 3 complete circles.
To turn on and off the compass manually, push
the 
switch
A while the ignition switch is in
the ON position.
See also:
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.
WARNING: ...
2011 Nissan Maxima review
The large sedan is making a comeback these days and the Nissan Maxima
succeeds because it doesn’t equate lots of interior space to whalelike exterior
dimensions, making it enjoyable to drive.
...
Controls
Controls
1. Fan control dial
2. Air recirculation button
3. Temperature control dial
4. Air conditioner button
5. Air flow control dial
6. Rear window defroster ...