Everything was going spectacularly well... until today.

About 4,900 miles on the 2022. Out of nowhere I get a "idle creep temporarily disabled" message on the dash. Check engine light also goes on. Now the car is shifting very odd. First gear doesn't seem to work at all... leaving from a light the car jerks and gears are all wonky.

Also just received an email telling me I have a transmission problem (really?) and to service the car within one day. So far, the soonest I can get a dealer to look at it is next week (and that's a dealer I can't stand). I'm going to call around to other dealers in the morning (can't find any other open service departments now).

I'm not sure if I should drive it at all. Then again, I'm not sure I trust the tow truck that roadside assistance might send. This sucks. Was really enjoying this car and it's now going to be out of service for who knows how long.

I could only find some older mentions of the "idle creep temporarily disabled" tranny issue. Is that still a thing? (Obviously is for me) Anyone know what the fix was?

 

What dealer did you buy it from? That dealer should give you top priority.

 

Bought it out of state (200 miles away). The local dealers all wanted 5 figure markups (in addition to a length wait). Either way, none of the local dealers I am aware of give priority to cars they sell. (Except one that will not service cars they didn't sell).

 

Thats too bad you don’t have a local dealership that treats you right.
I hope your issue is an easy fix and the dealer is easy to deal with.

 

Actually, the dealer sucks. I'm only going there because it is the closest and only one where I can get an appointment at the moment. That said, I do believe they have a competent Corvette tech on staff, so that's a plus.

I've been looking through old reports of this problem. Some seem to be a simple solution (software and/or filter change). Others seem to have had complete transmission replacements. So yes, I'm hoping mine is one of the easy fixes.

I've also seen reports that reverse doesn't work with this issue. It was difficult enough getting it into the garage without a first gear. Not sure how I'm getting it out if there is no reverse.

 

I had this issue a few months ago on my 2020. The tranny service/filter change was done at 7,000 and around 8,000 the CEL came on. I took it to the dealer, and they followed GMs bulletin and flushed the system three times. Reset and cleared light/codes. I was told if it comes back that the next step is to replace the valve. At 10,000 miles now an no issues.

 

Best of luck getting the car fixed - hope it is an easy repair.

 

Good to know there is a bulletin with the procedure. I'll make sure the dealer is aware. Thanks.

 

What dealer on LI are you getting this done ?

 

Huntington (Empire) Chevrolet is where I have an appointment next week. I thought that timing was bad. Turns out it is very good.

Arnold (Babylon): will not service cars they didn't sell
Robert (Hicksville): has one tech who is "backed up" - first appointment is 5 weeks
Millennium (Hempstead): 3-4 weeks
East Hills (Freeport): 3-4 weeks. Only one Corvette tech who is only qualified for "routine service." He's also the only "volt" tech on staff. To service a transmission they would have to "send it out" according to the person on the phone.
Atlantic (Bayshore): 2-3 weeks

As much as I dislike Empire, I'll stick with next week's appointment. Other dealers are further away and I'd rather drive as short a distance as possible.

 

Hopefully, yours will be one caused by debris in the transmission solenoid valves that will solved by the transmission hydraulic system flush and canister filter change (which others have reported is often the attempted fix and often works). The good thing about this, if there is one, is that you will get this service paid for under warranty, and still have your free service that you can use at 7500 miles (if you have not already used it).

 

I had the same issue around 2,500 miles. And like others mentioned, it was just a stuck solenoid and I had the car back less than 48 hours later, all free under warranty.

 

Yes, I believe this problem was traced to Tremec's failure to thoroughly clean some transmission cases prior to assembly. There are a lot of nooks and crannies and that case, and I'm sure it would be easy to miss debris in small, hard to see areas.

I agree the triple flush will most likely solve OP's problem, given that it appeared suddenly after normal operation for 5K miles.

 

This is certainly not what we like to hear, jrm21. Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2022 C8. To do so, please send an email to socialmedia@gm.com with ATTN: jrm21/Corvette Forums in the subject line.

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To flush the fluid and change the filter? Seems like it wouldn't take a Corvette tech to do that, nor would "sending it out" make much sense either. I know you want it done right, but I bet my independent mechanic who isn't certified on anything could do it with no problem.

 

That's what they told me on the phone. Oil change? He can to that. Look at at transmission problem? Would have to "send it out."

If he's not qualified to diagnose and repair the transmission, he probably wouldn't be able to determine that a flush and filter change is the appropriate remedy (assuming it actually is). Regardless, this is not a service department I'd want to work with. I wonder where exactly they "send it out" to? Would I wait several weeks for their service appointment, at which point they contact another dealership where they wait another several weeks for that appointment?

 

It's not a "diagnose and repair" situation. It's following a published GM service bulletin, which every GM dealer has access to. If they have a mechanic on staff not capable of doing that, I don't know what else he can do other than oil changes.

The likely truth here is that they don't want to deal with a Corvette owner based upon bad experiences in the past.

 

Also a LI'r & know a bit about the Dealers you mentioned. Huntington Chevy is pretty good, Robert is now owned by Empire & their Corvette mech (Ozzie) is top notch. Atlantic does a good job on C8's also. Haven't heard anything about East Hills or Millennium. I use Ozzie at Robert & he is worth the wait if you can. Maybe set yourself up with a Dealer/mech you can use for routine stuff as a regular customer.

 

^^^ Really good info to share, JT!

 

I have trouble in my mind separating the service from the sales department. Atlantic takes the prize for sleaze IMO. empire isn’t far behind.

Only picked up the car in May. Went to empire for my state inspection, hoping to become a “regular.” Then they tried to push a wheel alignment on me for $700+. That left a bad taste.

Glad to hear you say that empire does a good job on C8s. That is a plus.

I would prefer to use Robert. Always had good experience with their service department on my old Silverado. I’m just not cool with having no car for five weeks waiting for an appointment… in addition to the time it takes to look at the car and fix the problem. Maybe it’s a function of empire buying them out, but Robert’s service phone is also pretty bad. No one answers most of the time, and it could take a few days just to get someone on the line to set the appointment.

At least Empire/Huntington is responsive and easy to get on the phone. As long as they don’t start trying to push additional expensive repairs again, I’ll probably use them for future work.

in a perfect world, I could service this car at the local Ford dealer. They have been servicing my F-150/250s/350s over the years and that’s always been a good experience (although for only regular maintenance and recalls - knock wood, I’ve never had a problem with ford pickups).

still have my empire Huntington appt for next week. Fingers crossed for a quick and easy fix. If empire does right by me, they will win me over for future business.