Good morning,

I had my '07 GL450 into the dealer for A service and slow cranking. They replaced the battery, and when I fired it up it was back to a normal very rapid start.
After about 10 minutes on the road, I realized the heat blower was not running at all, regardless of auto mode or manual fan speed selection.
I'm heading back this afternoon for another service, and I imagine the techs will figure it out pretty quickly.

Going to the dealer is kind of a PITA, I wondering if there is some kind of electrical system reset routine done with the ignition switch?

I've read about "re-setting" the electronic throttle control with a combination of key action & pedal pushing.

Is this just wishful thinking?

TIA,

David in MD