xcutter

My 2008 Z06 says "No FOB Detected" when trying to start the car. I changed the battery in the FOB and it still does not work. Cannot unlock or lock doors either. Tried the second FOB and got the same results. I also tried starting the car with both FOB's in the glove box slot. It still says no FOB detected and will not start. Luckily this happened at home ind in the garage. Anybody have an idea of what the problem could be? I am glad I sprung for the GMEPP.

Not So Fast

Happen to have any kind of electronic devices plugged into the accessory outlet ???
NSF

bartsky

Make sure you put battery in fob correct side up.

xcutter

Just the hot wired radar detector which has been there for years.

Andy_greyz06

It's only happened twice. Dead car battery and when it was extremely cold outside. The cold weather issue was solved by putting the FOB in the glove box.

xcutter

Car battery is fine and the temperature is in the 70's. FOB in glove box does not work.

walleyejack

happens, and same ole GM bs. i have tried all the "recommended" fixes, lasts for a week or 2, then same crap again. i just live with the bs fob.

xcutter

My problem is I cannot start the car at all. Can't live with that

RicK T

Take a look at eboggs' checklist in here. It pretty much covers everything:

https://www.corvetteforum.com/forums...sn-t-work.html

walleyejack

not even with fob in glove box ? and in position correctly ?

walleyejack

i am not a pessimist, but good luck with this.

xcutter

Tried both of my FOBS and neither worked in the glove box. My car battery is 3 years old this month. It has spent a lot of time on a battery tender. The original battery lasted 5 years. I just hooked up the battery tender and will see if that helps.

walleyejack

if the car battery is scrap, which i doubt it is, will be the same results.

simplegto

How did you get the door open? I think I would disconnect the battery and let everything reboot and hope for the best.

walleyejack

he probably used the key

xcutter

That is what I did

xcutter

It is probably not the car battery. The interior lights come on. I can open the door normally as the car is unlocked. The headlights also work.

walleyejack

yup, same as mine.. the Gm .29ct fob

unclecookie

I did not have exactly the same problem as you, but my car would allow me to open the door, the interior lights worked, and the headlights worked. However, when I tried to start the car, suddenly all the lights went dim, and of course the car wouldn't start. I checked the battery with a volt meter and discovered it had only 11 volts in it. I hooked up a battery charger to it for a couple hours, and checked the voltage again, and it registered nearly 14 volts. When I tried to start the car again, the same thing happened. I checked the voltage at the battery and it was down to 10 volts. New battery cured my problem. The old battery had a dead cell apparently. I have no idea how old the battery was as it came in the car when I bought it last March. So even though your battery is only 3 years old, it still could be bad. JMHO

xcutter

When my battery died last time, I did not get the No FOB message. Why would the electronic door open, headlights and interior lights all work? Should be enough power to detect a FOB