"B" shifting disables the cruise control?

I haven't seen that, but then I have no reason to use B mode. I've played with it, but never on cruise control. You should never have to shut off and restart cruise control, so if that is true you have discovered a bug. I'll give it a test and see. Are you sure you had to shut off and restart the cruise, or would setting it again do the job?

Tom

 

Hills in Houston? I lived there 25 years and don't remember any hills.
Except maybe the interchange stack ramps off the toll ways. Those are pretty high up there.

Anyway it would be normal for the engine break to shut off the cruise control.

 

But not normal to require a power-off/power-on cycle of cruise control, if that's really what the OP meant.

Tom

 

Ok you can tell I'm still a Prius newbie. I was assuming he meant power for the cruise control not the Prius itself. I forgot the little round thing I push every morning says Power on it.


Im still confused about hills in Houston

 

Those good ol'e Houston Hills Makes me miss home.

Sounds like a glitch in the system. Probably could be fixed at the dealer if one wanted to and if Toyota has a solution.

 

Sorry I'm getting off your subject but it does help bump the thread. That pic must be on an early Sunday morning. I don't remember the traffic being that light.

On a rare clear day it is neat to see the downtown skyline from atop the 290-Beltway interchange. It is also fun to bring out-of-towners on top of that interchange and watch them say holy crap this city is huge.

I hope you find some answers to you B shift question.

 

In my 2004 cruise cuts out but can be re-engaged without powering down.

 

Ditto on that with my 2008 Prius. Going 65 with cruise on the way home from work I placed the gear in B. The cruise went off but I was able to re-engage without power down.

Hey Prius77094 did you happen to be under 25 MPH when trying to engage the cruise control?

Cruise control doesn't work under 25 MPH unless you perform the hack.

 

The alternate answer is, don't use "B". It certainly isn't needed in Houston.

 

Yea back in the day the I-10-beltway was the tallest exit ramp in North America. This makes me miss home. Go anywhere in TX and find such a great road system (Especially Austin and Dallas make me puke)


Although this does not give it justice here is a pic.

Another bump in this thread. Anyone else experience the B shifting disables cruise control problem?

 

Take It In For Service, This Is Not Normal.

 

It is definitely starting to sound like a glitch. I hate to ask such an obvious question, but after you "use the B shift", you are shifting back into "D" right?

My experience in my 2007 has been that if I switch to "B" while CC is engaged, it disengages CC while leaving the "Cruise" light lit on the dash. If I then shift back to "D", cruise does not automatically resume. However, if I've shifted back into "D" and tap the CC stalk down to "Set" the current speed, it will re-engage. I haven't needed to turn CC off and back on, and I certainly haven't needed to turn the vehicle off and back on.

If I use "B" prior to using CC, as long as I remember to shift back into "D", CC works normally, without needing to turn anything off (CC or vehicle).

Now, what I have occasionally experienced is forgetting to shift back to "D" after having shifted to "B". In this case I'll try and set CC and even though the "cruise" light is still lit on the dash, CC won't engage. Eventually it dawns on me that I've got the vehicle in "B". Shifting back to "D" fixes the issue. I suppose turning the vehicle off would fix the issue as well (because it would force the car out of "B").

 

Tested mine today. Going 45 with cruise on I placed the gear in B. The cruise went off as expected. Shifted back into D and was able to use the cruise control without any problems.

If you are still having problems time to take the car in for servicing as something isn't working as expected.


Good part is this problem on your car can be easily reproduced so they should be able to figure it out.