When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
key fob battery replacement - need to reprogram it?
im going to start using my keyfob again.
i wasnt using it because i was scared pke could unlock the door when i didnt want it to.
(ex. a situation where i was at a restaurant and got seated inside on a wall next to the car).
im starting to think this wont be an issue as i have been experimenting with it.
so are there any tips to replacing the battery? i read an online post saying that if you replace battery you will need to reprogram it back to your car ???
is that true or bogus? does anyone remember what battery it takes?
i wasnt using it because i was scared pke could unlock the door when i didnt want it to.
(ex. a situation where i was at a restaurant and got seated inside on a wall next to the car).
im starting to think this wont be an issue as i have been experimenting with it.
so are there any tips to replacing the battery? i read an online post saying that if you replace battery you will need to reprogram it back to your car ???
is that true or bogus? does anyone remember what battery it takes?
Didn't have to reprogram mine and it had been years since I had used it. Battery was dead in the car too so it should just work. CR2450.
FOBs don't get programmed themselves. FOBs get registered to the car. When the car is in program mode and the button on the transmitter the transmitter sends an ID code which is stored in the memory of the controller. As long as the controller is not erased or replaced the FOB remains registered to the car.
im amazed the 13-14 yr old battery in the key fob still works, but im going to replace it for 'insurance' against it dying on me somewhere inconvenient
In a case like this (or maybe when you are gassing up) you can always take a few seconds and turn the system off temporarily.
...by holding down the "door" button for a few seconds until the locks cycle. This is how you turn off the PKE system. (I now do this when gassing up - the sensor in the back end of the car works really well and the constant cycling gets annoying when pumping fuel.)
Do the same thing with the key in the ignition to change the door settings (unlock both doors or driver's side only).
Since we are talking PKE..... my new to me 96 did not have a fob. I ordered a gm new fob. While attempting to program, I was able to get car in programming mode after multiple attempts, but that one time the fob was not programmed. Now car will not enter program mode. I removed PKE fuse and left things alone for an hour or so, replaced fuse, same story..... what next?
Since we are talking PKE..... my new to me 96 did not have a fob. I ordered a gm new fob. While attempting to program, I was able to get car in programming mode after multiple attempts, but that one time the fob was not programmed. Now car will not enter program mode. I removed PKE fuse and left things alone for an hour or so, replaced fuse, same story..... what next?
Need more information. Why did the fob not program that one time? Exactly what do you do (every step) when you try to get into programming mode, and what happens after you do it? Have you checked fuses 26,40 and 42? Have you checked the fob battery?
Need more information. Why did the fob not program that one time? Exactly what do you do (every step) when you try to get into programming mode, and what happens after you do it? Have you checked fuses 26,40 and 42? Have you checked the fob battery?
ok. I followed the instructions that came with fob. Press trip/odo twice, within 5 seconds press fuel info. Did this several times before PKE light came on. When light was on, I retrieved fob, brought fob to car, PKE light was flahing once per second, I took fob away from car and returned to the car, opened door and turned on ignition. Doors do not unlock or lock, car will not go into program mode.
Another question, if the battery is out of fob is fob considered out of range? I ask this for hopefully future programming.
Thought I was doing a simple battery swap and now damn thing doesnt work...going to try to reprogram it see if I have any luck but me thinks something is wrong
Thought I was doing a simple battery swap and now damn thing doesnt work...going to try to reprogram it see if I have any luck but me thinks something is wrong
You shouldn't have to reprogram, you probably accidentally turned it "off" while changing battery. Try turning it ON.
ok. I followed the instructions that came with fob. Press trip/odo twice, within 5 seconds press fuel info. Did this several times before PKE light came on. When light was on, I retrieved fob, brought fob to car, PKE light was flahing once per second, I took fob away from car and returned to the car, opened door and turned on ignition. Doors do not unlock or lock, car will not go into program mode.
Another question, if the battery is out of fob is fob considered out of range? I ask this for hopefully future programming.
OK, the key should have been ON in the ignition, was it? Then press ODO twice. You are supposed to hold the fuel info down until the light comes on. When the light comes ON you should turn the key off but leave it in the ignition. It should then start blinking, after that you bring the fob in range. You didn't say if the light stopped blinking when you brought the fob in range (be sure to shake it some) , it should have.
The fact that it turned on once makes me think that it might again if you hold the FUEL button down.
Also, I don't know if you can predict if the system will be ON or OFF after programming. Try turning it on. (Is it a coupe? Does the hatch release work?)
Also, are you sure you know how this works? When you say doors will not lock or unlock, what are you doing?
The battery out of fob is same as out of range.
Last edited by markKlein; Mar 31, 2017 at 10:08 AM.
OK, the key should have been ON in the ignition, was it? Then press ODO twice. You are supposed to hold the fuel info down until the light comes on. When the light comes ON you should turn the key off but leave it in the ignition. It should then start blinking, after that you bring the fob in range. You didn't say if the light stopped blinking when you brought the fob in range (be sure to shake it some) , it should have.
The fact that it turned on once makes me think that it might again if you hold the FUEL button down.
Also, I don't know if you can predict if the system will be ON or OFF after programming. Try turning it on. (Is it a coupe? Does the hatch release work?)
Also, are you sure you know how this works? When you say doors will not lock or unlock, what are you doing?
The battery out of fob is same as out of range.
mark, i have held that fuel button until my finger hurts. If the system is off will it come on when going to program mode?
no the hatch release does not work. And what about the doors, are they supposed to be open, stay closed?
I believe the light stopped blinking and then when I came back without the fob it was blinking twice per second to indicate programing for second fob. I think that I then turned key on. I did these steps by reaching in the window.
an article on super chevy over and over again gives different instructions......
i checked the three fuses... they are good. Does radio play a part of this?
with an active fob you turn PKE on by holding door button several seconds, right?
is there something different about beginning the cycle such as how you enter/unlock car to get in it.
mark, i have held that fuel button until my finger hurts. If the system is off will it come on when going to program mode?
no the hatch release does not work. And what about the doors, are they supposed to be open, stay closed?
I believe the light stopped blinking and then when I came back without the fob it was blinking twice per second to indicate programing for second fob. I think that I then turned key on. I did these steps by reaching in the window.
an article on super chevy over and over again gives different instructions......
i checked the three fuses... they are good. Does radio play a part of this?
with an active fob you turn PKE on by holding door button several seconds, right?
is there something different about beginning the cycle such as how you enter/unlock car to get in it.
OK, since you didn't say you held in the button I assumed you didn't. Get the directions from your owners manual. There are a few possibilities. Is your ignition key sensor working? Do you get an alarm with key in and door open? Are your keys working (ODO and FUEL, do they work well, is one stuck?). If the sensor or keys aren't 100% you will need to address that first.
It sounds like the fob was programmed the one time when the light stopped blinking. I don't know if the doors matter, but I would leave the doors closed and lean in the window. Yes, you turn the system on/off by holding the door button down with the key out. If you still can't get the blinking light to come on, please list each step you took and the result.
OK, since you didn't say you held in the button I assumed you didn't. Get the directions from your owners manual. There are a few possibilities. Is your ignition key sensor working? Do you get an alarm with key in and door open? Are your keys working (ODO and FUEL, do they work well, is one stuck?). If the sensor or keys aren't 100% you will need to address that first.
It sounds like the fob was programmed the one time when the light stopped blinking. I don't know if the doors matter, but I would leave the doors closed and lean in the window. Yes, you turn the system on/off by holding the door button down with the key out. If you still can't get the blinking light to come on, please list each step you took and the result.
i presume my key is working, there are no issues using key to start. If I understand the chipped key, the car will not start without it. My alarm seems to work, I have had i go off a couple of times, the circumstances seemed odd, but inserting key and turning ignition on stopped alarm.
The buttons work because they toggle thru the info they correspond with. I do not get an alarm with key in and door open, not sure I understand what you mean. I do get key in ingnition alert with door open.
i presume my key is working, there are no issues using key to start. If I understand the chipped key, the car will not start without it. My alarm seems to work, I have had i go off a couple of times, the circumstances seemed odd, but inserting key and turning ignition on stopped alarm.
The buttons work because they toggle thru the info they correspond with. I do not get an alarm with key in and door open, not sure I understand what you mean. I do get key in ingnition alert with door open.
I should have said buttons, not key. I was referring to the odo and fuel buttons and the key in ignition buzzer/alarm.
So my key fobb hasn't been working and was recently told to buy a Renata battery instead of using a energizer battery, at the moment I'm waiting for it to arrive but did noticed a difference between my my fob and yours, would this little copper wire that isn't connected together like yours affect the fobs working capability? (It very hard to see tried my best to take a good picture of it)
key fob battery replacement - need to reprogram it?
