Gearhead Jim

Well, if it were me using my phone, the message would have been 5 words long because that's all I can handle.

Seriously, thanks for the info.

07atomic

Oh I know you guys are just razzing me a bit on my punctuation. My car gave me a fit with the hatch popping open once I fixed my personal car I have fixed a few customers cars. The tail tail sign is the third brake light. Oh it also helps we own a shop and I have plenty of info there is a tsb out on the high mount stop light burning dim at all times I hope it helps.

rcallen484

Yes, Caddy Shack school. Ever seen the movie? Not to be confused with Back to School, another Rodney Dangerfield movie

SolidlyStated

I came to this thread for the long run-on sentence.

Was not disappointed.

Gary '09 C6

Rodney was one of the best,...!

rcallen484

HummelS

Yep - my first C6, a 2006, would sound the alarm when I locked it with the fob - weak battery in the car, not the fob.

I also had a similar problem in one of my C5's that turned out to be a computer (BCM) that had been damaged by water dripping on it as a result of a clogged A/C drain.

z51vett

How about brushing the button on the dash getting out and causing hatch to open.
z51vett

1bdvet

When I get out of the car, close the door, few seconds later hatch pops open.
Just replaced the battery, and have to new battery in the fob.
When I close it, pops open twice, then stays down.

desue

Did you ever find a solution to this? I have had this issue for a few weeks, replaced the fob batteries (it does it with both fobs) It usually happens when I get out of car but today it happened when I was still in it, after i turned ignition off. I have also noticed the repeated clicking from behind radio area, may or may not relate to this.

Dano523

Pull and clean the hatch release button above the license plate.




It can get grit in it, causing it to to stick in the upwards position, and a slight jolting to it is enough for the contacts to dance open then back closed to release the hatch.

1bdvet

Has fast has the problem came, it went. I will say it hasn't popped open in years by itself.
Don't know why it happened, but happy gremlin left for another car.

Joe B.

My 2012 'vert trunk was popping when new which I attributed to a weak battery, the car having been at the dealer for 6 mos.
Charged it up and no more popping until just lately.
The battery is charged, but 3 1/2 years old. Think I'll "pop" for a new one and see what happens. Don't need that happening when parked outside somewhere.

Dano523

Again, the rear bumper cover on the vet is one of the dirtier places on the car, since grim gets sucked/blow up into it and there is not easy way to get this areas clean.

When you pull the latch release button after a few years, will find that its covered in a fine silt that has caused the inner button section to bind to the outer button section, and this ends up with the button fully pressed in and staying there.

Its a digital signal that the car will ignore most of the time with the button fully stuck inward since the button is making contact all the time to send the signal, but the glitch is that the button can slightly dance break the contact connection and make the connection again, or the car can forget that that is getting a constant signal instead, and pop the hatch since it getting a signal from the button to do so.

Bluntly, when you go to clean the hatch button (and make sure to pull it all the way apart so you can clean the copper contact points inside the button), use contact cleaner, and do not use any lube on the parts that will attract grim when you put it back together. Also, on the top sides of the housing where it snaps back in to the car, once you have the button back in, tape closed the side slots to prevent grim from getting back into the button to bind the inner button back up in the outer housing again.

RocketDawg

Yes, that was precisely what I was thinking when I read his post. Trying with the windows down a bit to relieve the internal pressure when the door is closed should determine whether that is the issue. If it is, it's quite possible that a simple adjustment to the latch would solve the problem. Could also be the rubber bumpers aren't allowing the hatch lid to be closed all the way. Presumably he isn't getting a "hatch ajar" message on the DIC so it "thinks" it's latched.

Nick McCann

Did you ever figure this out? I heard the clicking sound behind my radio area then had the trunk popping issue. I had to shut it like 6 times before it stayed closed.