GM/Chevy Key Fob Strange one

Ron

Ron

Dum Spiro Spero
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Joined
Apr 16, 2005
Location
Sharon, SC
Any current GM techs?

Got a strange one on my work car, and frankly while a minor problem it has me stumped.

I recently had to change cars with another employee, do to regular rotation (mileage differences) and when we swapped he said his keyfob remote had always been intermittent, but "usually" locked the car but rarely unlocked it.

So trouble shooting this is what I found, and it makes zero sense to me.

1) I have changed the battery and re programmed the fob per the om and this persists.
2) the keyfob will ONLY work during the auxillary exit delay. During this time all buttons work, "lock" "unlock" and trunk/panic.
3) After the auxillary exit delay (interior lights go out) no remote functions work.

Is it feasible that the wireless receiver is not powered on by a constant?

BTW this is a factory fob 07 Impala if it makes a difference.
 
theres a scan tool you can use to trouble shoot.

just from a little googling, sounds like GM has this issue with their key fobs. replacing the receiver module will probably fix that. i think if you have the scan tool and are capable of programming the module yourself it looks like you can get out for around $100.

some one mentioned tech pubs on this subject, if you can find a GM tech, see if he can look into those pubs for you
 
here's the tsb on this problem:



basically, replace the key fobs, the RCDLR, remount the antenna in a new location if necessary, and reprogram the RCDLR, TPM, and key fobs. the programming can only be done by GM.
 
hrmmmmm..the alldata link is subscribers only....its a company car Ill let the fleet management figure it out.
 
whoops i thought that link would work all the time. sounds like you are your doing the right thing by letting them handle this problem.
 
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