I just bought 2003 Jetta TDI with a manual transmission and have noticed some cruise control problems. Driving down the highway at 60 mph (and even up to 70 mph) the cruise sets and maintains speed with no problem. Anything faster than 60 mph the accelerate button does not work. If the speed is set at 55 the accelerate button will accelerate the car to 60 but after that nothing happens. The cancel button works fine, pushing the clutch in or tapping the break pedal cancels the set speed as it should. If the speed is set to 55 mph, canceled, and the resume button is pushed it will resume to 55. Driving down the highway everything seems normal however when you go down the interstate at 75 mph or 80, when setting the cruise control, it will gradually slow down and does not maintain the speed set (even on a flat road). The accelerate button does nothing when pushed. Cancel button pushed, clutched pushed in, or break pedal pushed, all cancel the set speed as they should. By the way these buttons are on the steering wheel on this car. There is no CEL on. The break lights work too. Has anyone else come across this problem? What do you think? Road trips down the interstate are going to be miserable if not fixed. :-/ Thank you!