VETTE-NV

Yes....we all know. I was responding directly to his question that was based on what was written on my invoice.

Based on my experience today, the new calibration kicked in after the operating temperature reached the normal range.....not before.....exactly as was written on my invoice.

Thanks for your input, though.

ShahulX

Well, cross your fingers.. Im going in now to drop my car overnight..get the suspension updateu. Will have new tires on at same time.. Same cup2...

Wont get to drive much until Sunday..

Plus a track day on the 16th. Not sure how much better it can get haha.. Hopefully not worse..

Messing with a good thing.. But in the name of progress

hemmerman

Travelor: I read the document from WWW.chevroletperformance.com
Things to know about before you do this this upgrade.
like you said the dealer has to have your car all day. to do this they have to wait for Chevrolet to send them the software program. they have to unplug everything, this means all your personnel settings will be gone. remember setting up all that stuff when you bought it new?? all will have to be reset. I know people that have had it done. this upgrade makes this car handle a little better on rough surfaces. at the race track. if you are a pro or semi pro driver. it might help you get that .1 or a .01 of a second at the track. Im a guy that likes to track my cars but im not that good. my driving skills are not going to change enough for me to pay $350 for this upgrade. I opted NO.

for what its worth this was just my decision. It sounds like you are going ahead and having it done. good luck i hope they do a good job on changing all your settings.I would be very interested on how it preforms on the track and if you can see a big or good diferance???

Note* I have a 2017 ZO6 without ZO7 package. Its my daily driver, too much fun to drive to let it set in the garage all day.

hemmerman

Travelor: I read the document from WWW.chevroletperformance.com
Things to know about before you do this this upgrade.
like you said the dealer has to have your car all day. to do this they have to wait for Chevrolet to send them the software program. they have to unplug everything, this means all your personnel settings will be gone. remember setting up all that stuff when you bought it new?? all will have to be reset. I know people that have had it done. this upgrade makes this car handle a little better on rough surfaces. at the race track. if you are a pro or semi pro driver. it might help you get that .1 or a .01 of a secound at the track. Im a guy that likes to track my cars but im not that good. my driving skills are not going to change enough for me to pay $350 for this upgrade. I opted NO.

ShahulX

oddly I took my car in and they said I already had the upgraded software available for the grand sport? Not sure how thats possible..I bought my car Feb 2017..

I'll have them check again mid summer.. im planning to do it if available...

cold track day coming up tomorrow!!

JerryU

Got mine a few months later! All Chevy info says it was not the full new program.

NashvilleGrandSport

I purchased my GS in Nov. 2017 and had the update done two weeks ago.

ShahulX

Yea i figured it wasnt correct, but I didnt have time to wait

bjones7131

Was the ride much softer on rough roads and was it worth the 350.00? Someone posted you loose all your settings, was that the case with your car? Thanks for the feedback.
BJ

VETTE-NV

Might win the award for the most inaccuracies in one post!

Dealer doesn't need it to keep it all day, no personal (this is the correct spelling) settings are changed, and the difference is truly dramatic.

But don't do it....you will hate it.

NashvilleGrandSport

No settings were lost .

Ride in TOUR mode is much improved. More compliant and better damping. Cannot comment on the other modes, but to me, it was $ well spent.

phil hunter

I had this done to my 2017 GS last week. The car was at the dealer less than 2 hours and no personal settings were lost. The dealer advised that the new setting will not take affect until the car has set for 8 hours, but it does not need to be at the dealer. As previously mentioned ride harshness in Tour mode is greatly improved. Before, I could not tell any difference between Tour and Sport mode. Now it is obvious. Overall, I'm pleased with the upgrade.


Phil

Myfourth1

I'm having my 2017 GS done tomorrow. I'll report results when completed. I'm looking forward to a smoother ride although I don't use Tour mode often. I wonder if there will be much of a difference in Sport mode.

Jaylars

Mine was built in April 2017 and received the upgrade a few weeks ago. And I can tell the difference when comparing the before and after.

Myfourth1

I just checked mine. It was manufactured in December, 2016. So I'm sure it hasn't been upgraded. We shall see tomorrow.

Myfourth1

Took my 2017 GS in for the upgrade. Corvette specialist came in to talk to me about it and said..."I'm not sure it's available yet for your car and it says you have to let it sit for 8-10 hours after it's done"....I told him he had old information. It is available and it can be driven home after completion. By the way, this is the first one they've done. He didn't argue with me and my service advisor told him that I probably know more about the upgrade than him since all you nice folks on the Corvette Forum have kept me abreast of the latest and greatest information on the subject.

Now, for the actual upgrade. He took the car away and I proceeded over to the free shuttle since I couldn't wait for it because I needed to get back home to prep my house for another showing....don't ask, long story.

As I was about to get on the shuttle (25 minutes later) the tech came in and said "your car is done...go to the cashier"....wow...that surprised me. And for the earlier post that said it messes up your settings....it doesn't mess anything up.

When I first brought the car in, I drove it in Tour mode so I could do a comparison after the upgrade. Call me crazy, but I felt an immediate difference in the ride and steering, not only in Tour mode but also in Sport mode. It will sit in the garage overnight and I'll test it again tomorrow and report my findings. So far, it looks like the upgrade is worth it. We'll see tomorrow, although $350 for a simple software flash does seem a bit pricey.....

iclick

For you guys with a 2017 GS, could you look on your invoice for a part number and post it here if found?

Myfourth1

My 2017 GS was built 12/2016. Vin# 14993. The part numbers on my invoice from today are :

Reprogram Corvette MRS Per Doc# 4593366.

No other numbers on the invoice. Hope that helps.

bjones7131

I agree, should be free for what we paid for these cars.

iclick

That is the correct number from the paucity of info I've found so far. I searched last week and found nothing except info on this forum, and the dealer I visited last week said he couldn't find it after I provided it. Will bide my time and pursue one of two options I have, either to find a willing and knowledgeable dealer (none so far) or embark on a DIY adventure.