richarfg

I don't know about the C8's after 2020, but did you know the 2020 does have a speed limiter? It's there for good reason....Do you know what that reason is? Just throwing out some trivia.

Spamburger_Hamburger

You mean like valet or teenager mode? Either that or some form of limp/restricted mode for the frunk being open or something like that.

richarfg

BINGO! Frunk not properly latched! It restricts your speed to 82 mph....if the frunk is unlatched, I wouldn't feel safe at 42!

Shokosugi

You’re going to cause some PTSD around here with that frunking talk.

AORoads

^^^ good one! and true, too.

JerryU

What are you talking about??? The week my C8 was built, last one in August 2020 it was lowered to ~26 mph IF the Frunk was not latched to the 2nd latch past the safety latch! A very few had their hoods lift if they did not see the clear dash warning. That occurred at ~>35 mph. So part of what now is a PIA way to open the Frunk with the FOB it's limited to ~26 mph so it won't fly up with air speed!

PS: I only use the button inside the driver's door or under the left headlight!

Red Mist Rulz

It has other speed limiters, too. If the top isn't secure speed is limited to 58 mph. And in Teen Driver or Valet mode you can limit speed to 85 mph.

AzDave47

The C6s had a cruise control that only worked properly to 157. If engaged at 158 and above it would just keep climbing. That was fixed at least to some higher number on the C7s. Who will check it out on the C8?

Vetteman Jack

Didn’t realize there were so many speed limiting events on the C8. Thanks for the info.

MikeyTX

I don't think I'd try to see how fast I could go before the to came off if unlatched. That would be an expensive experiment.

richarfg

Just the messenger, Brother.....The 2020 C8 Corvette's Frunk Acts as Speed Limiter (topspeed.com)

Phil1098

It's old news, they changed the limit through an over the air update and now it's 26 mph. I know it for a fact as I tested mine after the update was complete. Throttle on the floor and 26 mph.

JerryU

Just to reinforce the panic that occurred when a "few" folks had their Frunk Hood Pop Up! The C8 always had warnings the front hood was not latched. There was a word display on the dash and a chime warning! BUT if you were texting when you started the car or were otherwise distracted and didn't see or hear the warnings AND got to about ~35 mph the hood was blow-up by the air! Only a few on the forum reported that happening.

SIDEBAR
Funny, many posters were saying GM will have to recall the C8's sold and redesign with the "manually reach in and trip a safety lock on many cars." Heck I had one on my 1st car a 1941 Ford. Frankly I had a "plan for a simple Tether to install until GM found a fix!" (See pic below.) I was sure they would FIND A SOLUTION WITHOUT HAVING A REACH IN AND TRIP A MANUAL LEVER (AS MANY CARS STILL USE.) I was criticized on the Forum for saying Chevy built 1 million Coravirs that DID NOT have a reach in and trip a safety (had several Corvairs- even would post a video showing how it worked!)

THIS WEEKEND WAS THINKING ABOUT THAT AND LAUGHING ABOUT THOSE FORUM COMMENTs, HERE'S WHY: Wife has had 3 BMW X5 SUV's. All much the same. The 1st two had the "reach in and trip the safety lever" (as many cars) to open the hood! Was adding windshield washer fluid to the 2021. Tripped the latch as I had the other two with the lever inside the car. COULD NOT FIND THE SAFETY LATCH LEVER. Was ready to get the Owner's Manual out and thought: Maybe they are using a similar approach to the Corvair and C8! Sure enough-no manual reach under the partially raised the hood! Unlatch the safety 2nd latch with the same lever! It uses a two pulls on the latch release inside the car. Pull once and it releases the first latch. Have to pull again to release the safety!

Below Pic is the simple Tether I was ready to install at my Courtesy Delivery dealer for the trip home. In fact the GM fix, that included the max 26 mph speed if not fully latched, was not supposed to be effective until after I got my car on September 2nd 2020. Turned out the new software and FOB activation procedure was installed and no need to use my inexpensive temporary Tether!
Yep we have a way to make Mountains out of Mole Hills on the Forum! I make some as well!

Zymurgy

That was published May 8, 2020 and as has been mentioned, it has been revised with an OTA update.

dohabandit

Ok, so today I coincidentally had an issue with my FRUNK.

I had my frunk open overnight, and before I got in the car in the morning I closed the frunk. (securely pressed down until <CLICK!>)
Started car and drove off. No warnings on the DIC regarding the frunk being open. Stopped parked, shut vehicle off. Came back after an hour, was able to remote start the vehicle. Hopped in and drove home. No warnings, no speed limiting. Parked gar in garage.
Several hours later, went to get into car and as usual pressed the remote start and nothing happened. Tried remote start again and nothing happened. Hrmm that is odd.
So walked around car, didn't see anything. Got in and started car, drove 10 miles or so (at speeds up to 50+ mph). No warnings about frunk.
Stopped at a store, parked car and got out. Pressed LOCK button and nothing. Vehicle wouldn't lock. Walked back and found the frunk COMPLETELY UNLATCHED. I just lifted it with my hand.

1) How did it get completely unlatched?
2) Why wasn't there a DIC message or warning about it being open? (if the car KNEW it was open and wouldn't let me remote start and wouldn't let me LOCK, why didn't it say something about the frunk being open?????)
3) If the frunk was open, why was I driving 50+ MPH if the vehicle is limited to 28MPH?

I am now seriously concerned about that frunk coming open when driving at highway speeds.

speedlink

First It's 26mph not 28. Second I doubt you had the over the air update for the frunk done.

JerryU

Don't have an answer and as noted perhaps your system was NEVER updated. Then it's possible you hit the Frunk open button on the FOB inadvertently.

Admit for the ~2+ months before GM "fixed" the Frunk opening issue (and probably for a few months after,) I even wondered if a possible electrical gremlin was the cause. Some even pulled the fuse so it could not open! BUT that was about a year ago and there have been no forum reports (except yours now that I have seen) where that was a question. Let us know if you have the new software.

Phil1098

You weren't, I can guarantee you if you drive one 50+ mph, you'd be posting picks of your damaged frunk lid with bent hinges and cracked SMC.

dohabandit

Well, sorry to tell you, you are wrong. I had a witness also that was in the car.
I walked back to my car that would NOT LOCK and noticed the front hood was open. I walked over and simply lifted it. It wasn't pushed down to the first click. It was OPEN.
The hood makes a loud racket when it unlatches too, which nobody heard. I was walking only 15' away when I pressed the lock button. I also didn't double press the lock button (why would I?), so there is no chance I unlatched the front hood at that time. Once I pushed the hood down, the vehicle then allowed me to lock the car.
How do you explain the car not allowing me to remote start before I got in, if I somehow unlatched the frunk just before I discovered it was open?

My speed was mostly around 35mph, but there was a brief stretch where I hit 50 mph. Luckily my speed averaged probably around 35.

dohabandit

I went back and tried to reproduce all of this. Vehicle remote starts regardless of the status of the frunk. It is giving me a frunk open warning as well. It is working 100% as it should.

Before when I tried to remote start, it refused. I looked directly at the FOB and made sure I was double pressing the middle button. Still wouldn't start. I was also standing very close and within direct line of sight when I tried it the second time. I don't think any of the other buttons were stuck or anything like that.
I was thinking maybe my FOB battery was low or something, but I tested it today in a parking lot and I had a very long range still. In what conditions will the vehicle refuse to start?

This looks like some sort of a software, state machine, or system of systems related bug to me. (I have decades of experience writing code, assembler, C/C++, and hardware engineering background as well...)
My vehicle has the latest OTA applied.

One other point I should mention, I was using the "reverse camera trick" when this issue occurred. If you haven't tried this, you press the camera button to see your rear camera. You start to roll forward, and as soon as the camera flips it's view, you press the rear view selection on the infotainment screen. You have to press it quickly or the camera will just shut off once you get moving. If the camera shuts off, you can't press the camera button again while moving. It will say the camera is disabled while driving. If you switch the camera view just before it shuts off though, it will keep the camera running at all speeds. I like the ability to see the cars behind me and precisely where they sit next to my bumper. I think this would be really useful during track use.