A lot of 1700 owners have reported issues with the cruise control related to the switches; especially the rear brake switch. A few of us have also had clutch switch issues. I won the lottery and after a trip out east and hitting some rain, all three failed. Front brake, rear brake, and clutch. One was replaced and the other two cleaned out by the dealer. However, in my case, I also lost my brake light. The switches didn't just prevent cruise control from working, but they prevented the brake light from illuminating.
I know several folks around here have reported similar issues on their 1700, especially the Vaquero. If that's you, don't forget to file a complaint with NHTSA (U.S. owners) or your countries equivalent. The link is below:
Similar responses (finally) got the worn-ignition wire issue recalled, and Kawasaki engineers swiftly developed a fix. Note that most manufacturers will NOT issue a recall unless there's first an investigation by the NHTSA (or NHTSA forces a recall). So contacting Kawasaki is not likely to offer resolution. If you've experienced the issue, even if it was years ago or you no longer own the bike, fire off a report to NHTSA. If there are a handful of reports with the same issue, it's more likely that they'll investigate.
To ME (non-engineer, non-mechanic), it seems the issue is that the switches are not sealed; so rain and gunk can easily get into them. Even though cleaning them out isn't hard (I had to have one completely replaced), it's a safety issue. Going down the highway and losing your brake lights in the rain is NOT a good thing. Hopefully, this can result in a course of action that results in new switches.
the way this website works is, after a couple of days, my "complaint" should show up on NHTSA's website when you search for the 1700 Vaquero (currently, the only thing that shows up is the ignition recall, and nothing under the 'complaint' tab). I think when that appears, there will also be a way to note under the complaint that you experienced the same, or similar, issue. In my mind, even if you only experienced the cruise control issue; it still needs to be reported. The switches use a shared housing and the brake light switch can fail just as easily as the cruise control switch. The scary thing is, you're probably less likely to realize the brake light switch has failed.