Turned on the car after the gym and headed out of parking lot going 15-20 mph and the car kinda jerked and a warning came up saying "reduced engine power." The check engine light is also on now

I have a 2014 c7 z51. Anybody ever had this problem before? I also have 36,800 miles on it.

The car is also stuck on tour mode now and doesn't allow me to go to eco, sport, etc.

Now that I turned it off and turned it back on it allows me to go in different driving modes.

 

Sorry this is confusing. So you can now change modes but the engine light is still on?

Take it to the dealer and have them pull the code, if it is powertrain related you should still be under warranty.

 

Yes check engine light is still on, I thought my warranty expires after 36,000 miles?

 

On your 2014 model, the powertrain warranty is 5yr/100,000 miles.

 

That is your bumper to bumper. Powertrain on your car is 5yr/100K miles.

 

Ahh ok, thank you for informing me. Hope it's covered then, I will be taking it to get serviced in an hour. Just wondering still if anybody has had this problem and what the cause was?

 

My first thought is the electronic limited slip differential. Those fail on occasion and I could see where it would cause power lose and impact your driving modes.

But that's just a guess without pulling the code.

 

Also, at 21,000 miles about a year and a half ago my car had a warning display saying "engine overheating idle engine." Took it to service and they had replaced the water pump housing which was the problem then.

Not sure if its the the same issue this time though.

 

UPDATE: just talked to advisor and he pulled out these 2 codes

B067F - Passenger airbag on indicator circuits
Short to battery or open
B068O -Passenger airbag on indicator circuits
Short to battery or open

So I have to pay $137 just to check and see what's wrong exactly and if it's wire issue I just pay that $137 and pay anything else out of pocket if it's another component Bc I'm at 36,800 miles

 

Yup, the 'new' GM.

Since misery loves company, here's my story.
Took my Z in for routine maintenance, SA calls to inform me PS headlight's out.
Really?
Over 8 years car's seen night driving maybe twice. Maybe.
OK it's out, what's the next step I ask.
Well it could be the bulb, or it could be the ballast.
Whatever it is it'll cost me $55 to find out which it is, THEN I can pay to have it fixed.
Told 'em I felt a clunk in rear-end, told it'll cost me for their wrench to road test it.
Finally complained about cig door not staying closed, a very common problem w/ C6 and I'm told $900.

Seriously this kind of crap's going to send GM into extinction even faster than inept management's trying.
GM's designers appear hell bent for election to make their cars more & more complex, more & more electronics et al so much so their own employees cannot fix what the car was brought in for, to begin with.
Not w/o a fee, anyway.

I've a GMEPP too, but, naturally ballasts are not covered under the plan I bought. Had I bought the more expensive plan, fine.
Be advised, because w/ this kind of malarkey one would have to be nuts owning one of these cars w/o some kind of coverage.
Just have to read what is/isn't covered, a law degree helps.

GM had damned well better get handle on their technology, to hell w/ offering 2 separate Corvettes come C8.
How about offering a Corvette w/ tech delete?
No, don't suppose that'd work. For GM.

 

I know this is a old thread. My Corvette just did the same thing as I was driving back from Las Vegas to Phoenix. It's the weekend and I won't be able to take the car in until tomorrow. Was wondering if you could identify what you had fixed or if it was just a misfire related to the DOD system?

 

Yes maybe some technology issues but the fact is GM buys the cheapest parts it can. Vendor's with poor quality control so the results are many many different problems. that's the story. Electronics and computers when made well are almost bulletproof.

 

What computer and all its associated wiring and sensors can stand up to the extreme heat and then the coldest of cold , extreme humidity , rain and everything else our cars are exposed to during the course if their life and operate at a zero percent failure rate ...
Even space craft and air craft have their issues .... do u think they are using junk .......how many scrubbed space missions have you seen..... how many canceled flights happen each and ever day due to mechanical failure.
And no other car manufacturer has issues ..... right.......
If you cant add value to for the OP then try not to post .....

OP there is no simple answer , it could have been one or more modules failed to initialize or lost communication. If shutting the car off and starting it back up took it out of reduced power mode then chances are the car is fine . Just like a home computer , sometimes you just have to reboot it ...

Take it to the dealer or Auto Zone , have them read the codes, it will point you to the module that failed , if it's in HISTORY , then just have them clear the code and see if it comes back . If you still have the problem it will pop right back on but since your restart has taken you out of reduced power mode I bet you will be fine

Dave

 

The "Reduced Engine Power" warning can be caused by a lot of different things. You should purchase a blue tooth OBDII reader (<$100). Then read the code yourself and avoid the dealer.

 

^^^^^^ This ^^^^^^^^

I have a cheap code reader I bought from Amazon and recently I just acquired a Knock Off GM MDI device and the GDS2 software that the dealer uses ....

My dealer charges $100.00 @ an hour , both of these have paid for themself already

Dave

 

Thanks guys for the response. I will take it to AutoZone to get it read instead of guessing at it. As stated, I did admittedly pull over to a gas station to shut it down. The outside temps in Las Vegas was 108 at night. When I let the car sit while I double checked the oil level and other things over. I started the car and it ran fine, and it allowed me to switch to different driving modes again. I just avoided the Eco mode because that is when the problem accord.

 

Good luck Erick , let us know how it works out

Dave

 

Just left AutoZone. The only code that showed up was:

Code: P16F3 Control Module Redundant Memory Performance

Check engine light was reset and remain off. Will probably put some miles on it this upcoming weekend to test the Eco mode again. But other than that the car drives perfect.

 

That is a TCM code and there was a flash update to correct it
https://www.corvetteforum.com/forums...16f3-code.html

There are several posts about it if you do a Google search C7 corvette P16Fe code ....

Dave

 

Unless you are in the computer and electronics design industry as I am, Try not to comment on the reliability of them. Anyone with knowledge in the industry knows the reliability of good military type built circuitry and boards. Reboots are for cell phones.