Just like to say hello to everyone first off. It looks like this is a really helpful site. I don't know to much about vehicles any more so I probably won't be much tech help, but i will help when I can.

I have a new to me 06 2500 hd diesel 4X4 mega cab 45,000 miles. I am loving the truck. I am having one problem though. Some of the instrument lights don't light during the lamp test. Specifically the oil temp light, low fuel, low tires and the wait to start indicator. The main one I am concerned about is the wait to light symbol. The owners manual stated it would come on during the lamp test and then turn off if warm up not required. Took it to the Dodge shop and the tech told me it would come on when it was colder than 66 degrees and not before. It got down to 54 the other day and still no light. Is there anything I can check before I take it back to the shop? Thanks for the help.