SAV Express Minneapolis, Mn

Push the tractor brake in leave the trailer brake pulled. It will idle until your heart is content.

 

If it is a Volvo
It is set to idle below 40 degrees or 70 and above. Keep in mind the temperature on your dash it's not necessarily the temperature outside. These trucks can vary a lot from the actual temperature. I've had mine reading 42 degrees when it was 21 degrees outside. Another trick you can use is buying a few hand warmers watch the Youtube video on where to locate your thermostat under the hood. Wrap your hand warmer around that and the truck will think it's much hotter than it is. Enjoy it while you can because in April we are getting the new zero idle freightliners.

 

We're testing 20 trucks?
That's a lot of trucks when you only have 105. He's full of crap. Anybody with a Volvo won't have anything to even worry about for two more years. I personally don't like the bunk heater because it will not maintain temperature. It's either 50° in your truck or 90°. I don't care what temperature you set it on. Typically the Volvo's are set to auto anything below 40 degrees + 70 or above. And it goes by the temperature on your dash now what might be the actual outside temperature. However I simply pushed the tractor break in and it will idle regardless of temperature. However the new freightliners will not do that. They will not idle regardless. The 2020 freightliners have a lot of new features coming that the current ones do not. This charging system it's supposed to be one of those things. Personally I don't care as long as I can run my AC. I am very hot natured and I don't deal with heat very well especially when I'm trying to sleep. I'm about 2 years from a new Freightliner but hopefully the new technology is up to par.

 

I don't worry about it.
Like I said I've never been able to get the temperature right on mine.. and if you hang your foot off the bed you'll get a third degree burn with that thing running.