On Tue, 1 Dec 2015 12:45:30 -0800, "Jack Myers"
wrote:

Micky wrote:
Friend with a Jaguar gets a message on the dash, Cruise Control Not
Available.

Wife checks Jaguar forums. Finds suggestion to tape up a crack in the
air intake pipe.

No crack, but lid for window washer fluid not on perfectly. Replaced
lid.

Message disappears and cruise works well.

A friend had this problem. In her case the connector to the stop
light switch (under the dash) had come loose for whatever reason.

But that really is related to the Cruise. You need the stop light
switch to disengage it. I'm not sure what the windshield washer lid
does.