Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabilitrak
#141
Re: Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabili
I'm not going to pretend I know how the whole system works and yes I agree there is a brake master cylinder that does provide braking when this happens. However, when it does happen you are expecting to apply the brakes like normal and suddenly they go almost all the way to the floor while providing NO braking during during all that travel to within about an inch of the floor. All this while almost every warning annunciator on the instrument panel is illuminating to tell you you have a brake failure. So yes I can still stop but that stopping is not assisted by all the normal means when it happens. And most every warning annunciator on the instrument panel coming on as well as warning chimes sounding can be somewhat distracting.
#143
Re: Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabili
Trust me, there is no way to not notice when it happens. Like I said warning annunciators are all lit up, the warning chime is sounding, the pedal goes almost all the way to the floor. Can't help but notice when it happens. Perhaps it was worked out on the 2009 models. C12B1, C0110, C0277, C12E0 were the codes they captured. I'm glad you have never had the problem Jeremy. However for those of us that have had it, it is frightening.
#145
Re: Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabili
There used to be a poster on here that was extremely condescending and suggest that people posted this problem as a way to attempt to get out of their new car contract they couldn't afford. Having bought a reasonably priced used hybrid I don't have that problem. But I'm sure I have figured out why someone traded this one in. By the way... I love my yukon. Just wishing it didn't have intermittent brake failures.
#146
Re: Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabili
The codes didn't seem to tell them for sure what the problem was. The dealer went to tech support and verified I had the latest software. I think I'm going to throw the $500 master cylinder at it like they suggested and hope that cures it.
#150
Re: Tahoe/Yukon Hybrid Problems: Brake Loss, Service Traction Control,Service Stabili
Yep. Scary. I just walked out to it, started it, stepped on the brake and this is what I got
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Last edited by JetMech; 04-12-2014 at 02:58 PM.