Engine brake - NO stop/brake lights please

[Paul8020]

What is needed are caution lights that come one when slowing without using the service brakes. Sound Transit, Seattle and Tacoma area, busses have this feature. I think it is triggered by taking the driver's foot off the accelerator pedal. The red lights come on when the brake is activated. I don't know if they got a dispensation from the DNV for this feature, but it solves the OP's issue. I am going to research this question and will post the results here. If anyone has the answer please post it to save me from duplicating work already done.

I agree with the OP, When I am going downhill on my exhaust brake, I would like to be able to let the guy riding my tail that I am going to slow even more and quickly.

[AirBossdavid]

I went thru this with a 2001 HR ambassador DP.

Obviously I could not contact the manufacturer since they no longer exist. I did call Cummins and they said it was an item in the ECM but they would not change it. I suspect they have a liability concern with making changes against what the original programming had. In hindsight having the ECM reprogrammed when everything else works properly might not be the smartest thing to do, could create a new problem.

I have just learned to live with it.
The issue as I see it is that I am on a long grade and holding my speed with the engine brake. Something happens in froint of me where I am forced to brake heavily and the vehicles behind me have no way of knowing because the brake lights are already on. Of course there is also the embarrasmnet of people thinking I am riding the service brakes.

The only solution I could come up with was a momentary switch which could disable the brake lights when I hold the switch but that did not seem like a goiod idea either.

So I live with it.

[Mile Marker 42]

Certain Monaco and HR and Beavers do this. Mine doesn't. It is programmable by Cummins. You just have to find a repair shop or mobile mechanic that will do it. It will need to be a smaller shop. The other way I see to do it is to add your own 3rd party brake light switch and run a wire to the back of your RV and use that hot wire when brake is actually pushed as the wire for your harness, on the RV side of the harness.

[FL420]

When I started driving my present coach 5 years ago I kinda worried a little bit that other drivers might think I was a rookie driver burning up my brakes coming down the mountain because my Pacbrake turned on my brake lights. I quickly got over it. Now I don't give a rat's patootie what other drivers think about me or their perceptions of my mountain driving skills.
After a week of classroom and in the seat training to qualify to drive a school bus loaded with "precious cargo" in the Rocky Mountains, yearly retesting and 5 subsequent years experience in all kinds of adverse weather driving any of the 200+ diesel, gas and CNG buses in the fleet in those very mountains IMHO I think I'm pretty good at it. The state designated examiner who administered my CDL Class B driving test told me it was the first time she had given a perfect score on a driving test in her 32 years as a designated examiner.
I wonder how the other drivers who might be critiquing my driving skills would handle the 10% grades on both sides of the Teton Pass in a 33,000# coach hauling a 500# motorcycle on a carrier and a 3,000# car on a tow dolly. The whole rig is 61' long and weighs ~38,000#. BTDT.
I do pay close attention to all the many vehicles without supplementary braking systems screaming downhill past me with brake lights on all the way down hoping the only damage they cause will be to their own clothes and seat cushions.
This explains the way I use my braking systems:
https://www.irv2.com/forums/f92/where-are-we-now-23186-post62306.html
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