Haven't tried to use just the Ebrake yet, I took it to a repair shop today, the bad news is that it seemed to not want to shift out of 2nd on the way there, so I may have much larger issues to contend with. Worse yet, being peak RV season it seems, they can't even look at it for 2 weeks so now I get to have stomach ulcers for the next two weeks wondering if the RV we saved 2 years for was a complete waste of $$. It drove just fine on the test ride, so just my luck if the transmission is shot at 56k miles, exactly 2 days after I bought it :(