Does anyone notice that this model gives inaccurate outside temp reading. It is probably 10 degrees off. Do I need to replace temp sensor?

 

No there is a way to adjust the temperature. I think its - turn ignition to on but not start. Press select and reset and hold it for like three to five seconds. The temperature range will adjust from -10 to +10 adjustment factors but by three's I think. Kinda wierd but play with it till you get it right.

There is a way to test the sensor by placing in icewater and checking resistance.

 

You can Only change the Offset by +3 or -3 (°F) (°C in Canada)
If you are getting a strong offset you can move your temp sensor (Located in Front of Condenser) lower than where it is, To make sure all air is hitting it.

Thats my 2c.