Hello all. I have been given a new truck and cannot activate the Opti-idle system. I have been through the manual and videos from Freightliner with no success. No matter what I do the IDLE MGMT light never activates. (It does at startup). Oddly enough when idling it never shuts down. It will run all night with no interaction. It does also have an engine shutdown override button which seems not to be necessary as it never shuts down. I'm trying to stop the idling all night as it's 116 degrees outside and the truck starts to run warm and the AC turns itself off in the night. I wake up to warm air blowing out the dash.
Please help. Thanks