For some reason my 2008 vette wants to set the alarm on its own but not allow the fobs to unlock the vehicle. The first time I had the situation I thought the car battery was dead. The hood was partially open all winter becasue I had a battery maintainer on it. I finally figured out after changing batteries that something else was wrong. I used the hatch key to get in causing the alarm horn to go off, started the car then shut the hatch, shut off the engine and exited the vehicle with the fob. Everything locked and then would unlock. That eveing I was putting things in the Vette for a trip. No probem. Next morning I was locked out and the fobs wouldn't work. I had to manually open the hatch setting off the horn etc etc. Got everyting normal again, I thought. Drove to my destination and returned home everything worked fine through out the day. I thought I had it licked. Two weeks later, same thing. I looked in the manual to see if there was a DIC setting to turn it off permenantly but I didn't see it if it was there. Oh, I also put new batteries in the fobs the second time all this happened. Any ideas?"

Thanks!
Ron H.

 

4 things have been listed..

1) dying fob batteries (you resolved that possility)
2) dying car battery
3) RFI caused by chargers/cell phones/other misc electronic items as well as some locations in cities/airports
4) we dont have a clue

sorry , yes i have read 3 other threads on your topic, where after all possible solutions done, the OP stopped writing. so dont have a clue what solution was.

as crazy as it sounds, one OP did say only thing they did different, was to pull emergency door release and hadnt had issue since. but as you state, it does appear to go away.. only to reappear.

 

Could be a strong electronic source near where you're parking. Could be a problem with the car's computer that recognizes fobs (RCDLR, I think). Could be objects in your pocket with the fob when you're standing outside the car.

 

Make sure you don't have the fob in the same pocket you keep your cell phone in. That's guaranteed to get me a "no fobs detected" on the DIC.

If you still have the original (car) battery then I'd be suspicious of that as my first option. Then the fob batteries (though it's unlikely that BOTH fobs would do this at the same time.)

Hmmm.

Z//

 

Is there any way to turn the security system off completely?

 

Long read plus... see #7
http://forums.corvetteforum.com/c6-t...-with-fob.html

 

I don't think so. I've not seen it documented anywhere.

 

Thanks! I know much of the bulletin doesn't pertain to my situation but, there are some that I can check out. What ever it is, just started and as far as interference, My c6 has been parked in the same spot for the last 4 years with no changes that I can think of.

Thanks again
Ron H

 

is your car this? (from your profile pic i'd say no)
2008 Chevrolet Corvette
vin ends in 85105302 thru 85106987 (which i think are ZR1 vin's)

see #8 on this link, does it sound like your problem?
http://forums.corvetteforum.com/c6-c...em-recall.html

1 recall (see above) and 3 TSB covering keyless entry topic, since i cant see tsb details i cant see what tsb covers..
http://www.alldatadiy.com/TSB/10/081006kb.html

 

a lot of ifs, but if your fob batts were dying and if you replaced it, did you get the right batts?

10-03-2010, 12:33 PM #1
Art Enz
CF Senior Member


Member Since: Sep 2004
Location: Montverde FL.

Changing C6 2008 Fob Battery
Cost $4.37 for (2) batteries # CR2032 from Wall-Mart.
One required for each fob.
2008 Corvette owners manual Page 2-9

Remove key.
Used kitchen butter knife.
Placed end of knife in small slot on side of fob nearest key opening.
Twisted knife end working around slot prying (2) halves of fob open.
Removed old battery with a couple of toothpicks.
Placed new battery in + side down.
Circuit board inside of fob moved a little out of place I just straightened it up.
Suggest placing side with the circuit board on the bottom when putting both halves together.
Pinched edges together with fingers while holding fob and it snapped together.
Worked fine keeping all settings.

Never could find a good way of doing this using search.


RainMan12
Junior Member

Member Since: Jan 2012

Be careful you don't damage the FOB case prying it apart. They are very poorly designed, and they won't take being opened up more than a few times before the tiny tabs on them start to crack and break, and then they won't stay together anymore. And if you try to get one replaced under warranty and it has any little mark on the case at all the dealers will balk at replacing it.

HOXXOH
Member Since: Sep 2007
Location: Phoenix AZ

Fob battery warning
When replacing the CR2032 fob battery, be sure to get one that has a smooth negative side face.

Avoid Rayovac, as the negative surface is gridded (similar to knurled) and will not make constant nor consistant connectivity with the tiny spring in the fob.

When my original fob battery died and Rayovac was the replacement, I thought I'd damaged the fob itself during the changeover. It would only work sporadically and fear of the "No fobs detected" message was often. The battery checked fine with a volt meter and worked perfectly in two other devices, but not in the fob. After 3 weeks of frustration, including squeezing, banging, beating, and shaking the fob to get it to work, just using a smooth face battery from one of my other devices cured the problem.