Pull over!

Had it happen last year when we were leaving the city during rush hour and it was very slow on the freeway. I noticed a car behind the fiver for the longest time and then all of a sudden she pulled in the lane next to me and motioned for me to roll down my window. When I did, she said "you have no brake lights on your trailer". Of course my wife instantly hit the roof while I calmly turned on the headlights and saw the marker lights on the trailer come on and touched the brake pedal and felt the trailer react. My wife kept on about me not checking the lights, etc. so I finally found a place to pull over and found all of the lights (including the brake lights) working perfectly.

I then clued in and realized that I had not used the service brakes at all in the stop and go traffic and had only used the exhaust brake on full mode. It works very well on the Cummins/6 speed manual combo! :B