Depends on what year sensors they are. Sensors after 04 do not need to be trained but the ones before 05 do.
The map lights sound like its a problem with the light itself. All that is is a switch.
Not sure about the temp..
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LOST KJ'S
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Current Jeep: 2004 Jeep Liberty
-Atlantic Blue
-Air Ride Rear Suspension ; OME/Rustys Lift ; Powertrax Locker ; Moog Lower Ball-Joints ; 245/70/16 Yokohama Geolander A/T-S's on MOABS ; Flowmaster 50 SUV
Lost #007082
http://www.cardomain.com/id/jeepjeepster