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[Richard230]

What is really irritating about a problem like the "glitch" is that it does not happen all the time.  And it will never happen when you take your bike into your dealer to have them investigate and fix the problem under warranty.     There is nothing like an intermittent failure to drive both the customer and the repair shop nuts.   

[ColoPaul]

2. More importantly, I wanted to title the thread "Son of a Glitch!".

  Awesome.

* Slightly rough motor operation above ~50 mph. Motor is completely smooth below this point, regardless of requested acceleration. I recall the motor being completely smooth in all RPM ranges prior to the controller update.

Yup, exactly.

* I've seen 3-4 cut-outs post-controller update (from 5000 miles @ 10/2012 through 8000 miles @ 3/2013). I recall these occuring during the warmer days of winter, 50+ F when most days were 25-45 F. Usually preceded by a period of rough motor operation.
* In the last month it's been warmer, 50-80 F and I've seen 1-2 cut-outs per week.

At what speeds, throttle position do your cutouts occur?  I assume from the "rough motor" comment they were all at significant speeds as opposed to WOT from a stop.  Do you think it's temperature related or just coincidentally getting worse?

* Post-update, every time the bike is powered on the motor is a bit hesitant for a few feet before it smooths out. I assume this is some type of calibration cycle.
* In the last month on 2-3 occasions the motor has been very erratic and jerky upon power-up, rendering the bike inoperable. Power cycling the bike or occasionally riding the bike a dozen feet or so has "fixed" the erratic behavior.
* On one particular occasion, after powering up the motor would jerkily and slowly move backwards as the grip was twisted. This behavior persisted across perhaps 10 power cycles, but it disappeared after approximately 5 minutes of sitting on the bike with it powered off.

Yikes.   I've experienced none of this.  Knock wood.

[Larry295]

yep, like everybody else: from a stopped position usually, opening the throttle, and no reaction from the bike...
The roughness, same thing. Only at WOT...
So can anybody offer a fix for that?

I am worried that one day, it'll happen when I am in front at the light, and it's a no go. It won't be fun!

The bike is almost 1year old with 3500miles on it, and the no start happened maybe 4-5 times total...

[Richard230]

In the case of the throttle problem where it will not move the bike from a stop, the issue was solved with a new throttle assembly.

Sorry I can help you with the WOT roughness.   

[nicktulloh]

I've only got 250 miles on my '12 DS SF9 and so far so good. While we all, presumably, want Zero to succeed, and so far I love the bike, it's a significant enough investment that if Zero is unable to fix these glitches, I'd consider using state lemon laws. IMHO having to double start the bike, or "only" occasionally losing power is completely unacceptable. I'm a master of procrastination but with only a one year warranty, I'll address it quickly if it happens.

False starts at a light are going to get you rear ended sooner rather than later. Loss of power in a tight, fast corner is extremely dangerous. Loss of power on the freeway is, obviously, a recipe for serious trouble.

As I say, mine has been flawless so far and I'm very pleased with it. I accept all the exposure that comes with being an early adopter but with $10.5k and my life on the line, I expect exemplary response for mx issues.

[rotoiti]

This is exactly what I am experiencing on my 2012 DS ZF9. I had both dead throttle and the power cutouts while moving. Reset cures it sometimes but only temporarily. The glitch has been happening with increasing frequency since about late February. I have 5700 miles on the bike now.

Last Friday it took me about 7 times to get the bike moving. Then I got the "thunk" and lost power in a tight curve and almost fell. Also, sometimes the throttle is completely dead and sometimes applying throttle while standing still will induce a slight *backwards* motion. Sunday, I lost power four times on the road and in fact, it has became so bad that I was wondering if I make it back home.

The bike is always fully charged and garaged, it was never in the rain. Heck, I didn't even wash it since new ;-)

[nicktulloh]

Even if your warranty period is up, you probably still have protection from your state lemon laws.

What's the back story regarding dealer response?

[Bdavis]

Has anyone had any success with Zero or a dealership?
I have a 2012 S ZF6 with 2000 miles on it.  I went through the first "glitch" repair (which was not at all a smooth process from both the dealership and zero) after almost being killed while turning left across traffic when I lost power.  Luckily it was happening so frequently that the dealership was able to see it.  It seems the "glitch" has returned to more than just mine.   Everyone's description pretty much matches mine.  After the repair I had a good few months of no issues at all.  About 2 weeks ago I had my first return of the glitch.  after a reboot, all was good.  A few days later it happened again.  Another reboot it was riding "rough" like others have reported.  A few more days of this continuing to happen I completely stopped riding fearing it would happen during a turn again and this time I wouldn't be so lucky. Today I started it up to take it to the dealership and drop it off.  After 10 reboots due to the bike "thudding" out a second after i twist the throttle I gave up.  If anyone has any luck with Glitch v2.0 please let me know. 

[protomech]

Contacted Zero (again) today, got a contact with one of the East Coast support staff. Hopefully will expedite a resolution.

Zero does read the forums and the threads, though they won't / can't respond here in an official capacity. If you're experiencing Glitch 2.0 and haven't already contacted Zero then I would suggest calling them. (888)786-9376 EXT 86. Squeaky wheel, grease, etc.

[protomech]

Replying here from another thread:

I have a 2012ds9 that i got in august. I had the glitch to start with some and traffic not bad where i live Arkanasa. Got recall but have not had it done 175 to dealer. It stopped with the glitches in October last year when it started cooling down and now it is warming up the glitch is back. I rode all winter no problem. I have an appointment set up now.

I think it was September before the fix was finalized. So definitely you have a non-updated bike.

The glitches I see now are definitely less frequent than the summer; I could count on getting one there every 20 miles or so, and it's perhaps every 50 miles now. Still feels very similar.

[Bdavis]

I emailed Zero tech support and explained my problem. Someone contacted me the next day. He also arranged a pickup for my zero(still thuds out before moving 1 foot) with the dealership. He said from my description that he has an idea what the problem is. I had very bad customer service experiences with glitch 1.0, but customer service for glitch 2.0 is starting off a lot better.

[RickSteeb]

I was hoping to stay in denial, but I have to offer more evidence that the glitch is back. 
...
* Feb 21 - Motor ran rough for ~10 seconds, then cut out while going 60-70 mph on the highway, 5 miles into trip.  Temps in the 40s.  Single reboot and it was good to go.
...
(2012 S ZF6, currently 3,500 miles)

I had that identical scenario last week, for the first time post recall service.  Same speed, same conditions.  I was able to complete a reboot [in the center median] and return to the diamond lane without coming to a full stop...
(2012 DS ZF6, currently 5,700 miles)
Sigh.

[kcoplan]

Happened to me again today -- this time at slow speed, slow throttle -- no clunk or chunk, just the bike stopped.  Worst possible place -- on the Tappan Zee bridge with 18" shoulder.  At least I was in the right lane.  Able to boot up and go.  Gonna have to stay close to the breakdown lanes for a while.  Will have to call Zero later today.

--Karl

[Richard230]

I am starting to feel another government safety recall coming along.   

Knock on wood, but no problems with my bike - yet.  Other than the occasional dead-start first thing in the morning issue.

[Lipo423]

For the record, I'm just experiencing sometimes dead starts (have to turn on-off the switch a couple of times to make it work, as the throttle does not respond)