What does code P1811 mean on pontiac aztek 2001

SOURCE: 2001 Pontiac Aztek refrigerant label

Hi 1.68lb of R-134 refrigerant

SOURCE: Pontiac Aztek Pressuer Control Solenoid

They will have to remove trans end cover to perform this,will take several hours to perform.

SOURCE: how do i reset service light on 2001 pontiac aztek?

Before you re-set it, take the car to AutoZone or other similar store to read the code. That way, you know why the service light came on.
Then AutoZone can re-set it for you (all free)!

== or ==

Disconnect the negative cable from the battery for 10 minutes, or more.
When you re-connect the battery cable, the service light will have benn reset. But it will turn back on eventually.

Hope this helps!

SOURCE: my air in my pontiac aztek comes on sometimes and

If a fuse was blown, the blower wouldn't run at all. It sounds like loose wiring. If it only works on certain numbers, it would most likely be the blower motor resistor. On the passenger side under the glove box, there is a removable panel. Behind the panel is the blower motor. Try to push the wires in a little tighter. Then try out the fan.

SOURCE: I have a 2004 Pontiac

CODE PO520 - ENGINE OIL PRESSURE SENSOR SWITCH CIRCUIT MALFUNCTION. CODE P1811 - MAXIMUM ADAPTIVE AND LONG TERM SHIFT CONDITIONS. CODE U1064 - NO COMMUNICATION WITH BODY CONTROL MODULE CONDITIONS. CODE U1301 - CLASS 2 CIRCUIT SHORT TO BATTERY CONDITIONS. TO RESET OIL LIGHT.SWITCH ON THE IGNITION ENGINE OFF.USING MODE BUTTON.SELECT OIL LIFE LEFT HOLD SET TO RESET.THEN PRESS AND HOLD SET BUTTON UNTIL 100% IS DISPLAYED.A CHIME WILL SOUND 3 TIMES AND CHANGE ENGINE OIL DISPLAY WILL EXTINGUISH RESETTING IS COMPLETE.SWITCH OFF IGNITION SWITCH.