I have an automatic 2015 Fit. When I'm driving at just about any speed, and trying to keep the speed constant, it feels like the car is hesitating. The dealer said it was because it needed the transmission fluid replaced, which they did, but the problem feels the same to me. It is most noticeable when trying to maintain speed, either by foot or with the cruise control, going up a slight grade. The car just feels like it's jerking. Any thoughts? I bought it used so I don't have a service history. It has around 75K miles. Thanks

 

More details please. ECON mode on/off? Happens with AC ON/OFF? How's the engine air filter condition? Have you replaced the spark plugs?

 

ECON mode on and off. A/C on and off. The spark plugs are probably original. I haven't checked the air filter (uh....).

 

Might be the dreaded fuel injectors.

 

You should check out this thread here. Do you have any check engine lights? I've also attached a couple of the TSBs I found associated with the fuel injectors/rail.