Chassis control fault accompanied with engine vibration

[Gerry]

Hi

I have a 65 plate Qashqai 1.5dci which has a reported Chassis Control Fault, something to with emergency braking.  At the same time it is accompanied by engine vibration which feels as if it is only running on three cylinders. I have checked that the parking and front screen sensors are clean and unobstructed. This happens shortly after starting off. I have noticed slight engine vibration a couple of times recently for a short time after starting but on those occasions was not accompanied with the chassis warning. The car has only clocked up abour 25k miles from new. Anyone any ideas please.