I have a 2011 bike on its second good times warranty policy.
The tps was original. I started getting low battery warnings a year ago
and it got to the point where it would take ten minutes for the warning to be replaced
with a normal screen. This only happened when it was below 50 degrees.
I took the bike in, a new tps was installed ( so I was told) under Good Times policy and that was it, two weeks ago.
The first time I rode it in under 50 degree temp, the same damn warning came on “ low battery senser F”
I took it back and left it at the shop last sat.
The flowers are now blooming, birds are tweeting and it hasn’t been below 60 degrees yet , might not get below 50 for another six months.
They said they took it out and it was fine . I told them about the temp factor and they said “oh, I guess we can bring that up to Kawasaki”
Service manager was also disinterested in the fact that I had a screen shot with the warning and odo showing 10 more miles on it than it had when I brought it in.
Any advice?

Call them, and tell them to get some fresh sensors in right now...and call you...
then, when you walk in, punch the tech dude in his snout, tell him to install and program a new PAIR of sensors now, and walk into the owner of the dealership and have a nice sit down conversation with him.. be very nice to the owner, and ask him to INSURE this won't happen again...


then, wait.  but hopefully during your conversation, you make the point that this is not a week long event, to place you without a bike for anything more than an hours work... if his tech is doing his job.

when I dropped mine off, for retrofit, under extended KPP, at 8 a.m., I got a call back at 9:45, telling me I could pick my bike up anytime... all complete.

I took the bike in, a new tps was installed ( so I was told) under Good Times policy and that was it, two weeks ago.  The first time I rode it in under 50 degree temp, the same damn warning came on “ low battery senser F”

I suspect they either replaced the wrong sensor (rear instead of front), or didn't replace it at all.  The latter would be a SERIOUS fraud, especially if they charged Kawasaki for it (and that would be your recourse right there).

They said they took it out and it was fine . I told them about the temp factor and they said “oh, I guess we can bring that up to Kawasaki"  Service manager was also disinterested in the fact that I had a screen shot with the warning and odo showing 10 more miles on it than it had when I brought it in.  Any advice?

Something is wrong with that dealer.  If you have a photo of it like that (which is what I was going to recommend) then they must take you seriously.  The sensors, with good batteries, will *NOT* say low battery just because it is 50F or 40F or even 30F.  They only do that when the battery is nearing the end of its life.  As long as you are still covered under warranty through to winter, maybe you should just wait until it starts again.  Who knows, by then, maybe they will have a new manager, or have gotten a clue, or it will then be weak enough it does the alert all the time.

when I dropped mine off, for retrofit, under extended KPP, at 8 a.m., I got a call back at 9:45, telling me I could pick my bike up anytime... all complete.

Yep.  When mine started doing the 50F alerts (03/2014 8,900mi on a 2011), I told the dealer and showed them photos of the dash with the alerts and ODO.  They contacted Kawasaki for instructions and later ordered the two sensors.  They called me when they arrived.  I THEN took in the bike, along with some new tires I wanted mounted.  They installed the sensors, mounted/balanced the tires, and I had the bike the next day.  $0.  (They have to mount/balance the tires, regardless of new or old, to replace the sensors- that is part of what they are paid for by Kawasaki).

I didn't feel a bit of guilt at all, either.  I paid for a premium bike.  I paid for the extended warranty.  And Kawasaki was well aware of the limited battery life of their design.  If they wanted to, they could have opted for a better sensor or double battery at any time.  The newer sensors DO have greatly extended service life... but it hasn't been long enough for anyone to really know just how good they are yet.  My first sensors lasted 3 years/8,900 miles.  I already have 5 years and 30,000 miles on the second set... so I have to believe they are much better.

as to some of what Max just said, the tire change is a real benefit, and well worth doing when they peal them off.. nOw when they install a "NEW" sensor, it will be programmed into the ECU, and can be pulled up by anyone with a KDS3 unit, and the hookup.. so you will see exactly what was "added" as a new one, (i.e. new sensor number and code for it)  if they replaced one sensor, it will still show there are 5 remaining "slots" for retro.. just letting you know.

MOB, what you state above is valid for fobs, not TMPS sensors, in that any number of TPMS sensors can be replaced.  Fobs have a total of 6.

sorry, I digressed..
had a bit of a lapse.. anyway, they can still be seen and recorded as "loaded" thru the KDS3  sensors installed, without a manual input of code numbers still will remain as a xxxx sensor. and un recognized by the the system.