[David H]

2014 Odyssey. Early in the new year I got a low key battery warning when starting the van. Replaced the battery and it went away for a little while. Then came back. Changed it a few days ago with a good new battery, and now again it is giving the warning. Has anyone experienced this? Any fix, or do i need to go about a process for the dealer to replace the key?

thanks!

Got the warning on a 2015 Accord and battery was fine. Found this post elsewhere, tried it and it worked for me. Seems the car 'knows' the battery only last about 2-2.5 years and at some point tells you it is low even if not. You then need to 'reset' the reminder for that key fob. Each fob has it's own reminder.

If you have a push button start, get in the car, (without your foot on the break to start it) press the start button twice so that the indicator lights show. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. You might hear a light click. Then turn the car off. When you start the car, it will be reset. This is a built in reminder for you to check your key fob battery. This doesn't mean your battery is dead. The vehicle has a timer set to remind you to check your battery life. You might want to have your battery tested before you pay to replace it.

 

[2016AccordTouring]

Got the warning on a 2015 Accord and battery was fine. Found this post elsewhere, tried it and it worked for me. Seems the car 'knows' the battery only last about 2-2.5 years and at some point tells you it is low even if not. You then need to 'reset' the reminder for that key fob. Each fob has it's own reminder.

If you have a push button start, get in the car, (without your foot on the break to start it) press the start button twice so that the indicator lights show. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. You might hear a light click. Then turn the car off. When you start the car, it will be reset. This is a built in reminder for you to check your key fob battery. This doesn't mean your battery is dead. The vehicle has a timer set to remind you to check your battery life. You might want to have your battery tested before you pay to replace it.

I had changed the key fob battery for my 2016 Accord Touring three times with "known-good batteries," but the warning light remained illuminated on the dash panel. I just tried this recommended "reset" and it appears to have been successful (did not hear the "light click"). Fingers crossed this fix holds. Thanks for the tip.

 

[2011.2017.odyssey]

Houston?

 

[Perky5]

Got the warning on a 2015 Accord and battery was fine. Found this post elsewhere, tried it and it worked for me. Seems the car 'knows' the battery only last about 2-2.5 years and at some point tells you it is low even if not. You then need to 'reset' the reminder for that key fob. Each fob has it's own reminder.

If you have a push button start, get in the car, (without your foot on the break to start it) press the start button twice so that the indicator lights show. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. You might hear a light click. Then turn the car off. When you start the car, it will be reset. This is a built in reminder for you to check your key fob battery. This doesn't mean your battery is dead. The vehicle has a timer set to remind you to check your battery life. You might want to have your battery tested before you pay to replace it.

Thanks so much! I have changed the battery on previous occasions and never received the warning light afterward. For some reason the warning light didn’t go out this time, but your reset method was successful. I will share with a friend who also has an Accord.

 

[sararidilla]

Got the warning on a 2015 Accord and battery was fine. Found this post elsewhere, tried it and it worked for me. Seems the car 'knows' the battery only last about 2-2.5 years and at some point tells you it is low even if not. You then need to 'reset' the reminder for that key fob. Each fob has it's own reminder.

If you have a push button start, get in the car, (without your foot on the break to start it) press the start button twice so that the indicator lights show. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. You might hear a light click. Then turn the car off. When you start the car, it will be reset. This is a built in reminder for you to check your key fob battery. This doesn't mean your battery is dead. The vehicle has a timer set to remind you to check your battery life. You might want to have your battery tested before you pay to replace it.

I tried this reset on my 2016 honda odyssey and it did not work. My "change key batt" annoying blinking light has been there for well over a year now. I replaced (over a year ago) batteries and fobs work fine, even remote-starts from 50-60ft away. I just want to get this dang warning light off!

 

[WhiteOdy2018]

Got the warning on a 2015 Accord and battery was fine. Found this post elsewhere, tried it and it worked for me. Seems the car 'knows' the battery only last about 2-2.5 years and at some point tells you it is low even if not. You then need to 'reset' the reminder for that key fob. Each fob has it's own reminder.

If you have a push button start, get in the car, (without your foot on the break to start it) press the start button twice so that the indicator lights show. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. You might hear a light click. Then turn the car off. When you start the car, it will be reset. This is a built in reminder for you to check your key fob battery. This doesn't mean your battery is dead. The vehicle has a timer set to remind you to check your battery life. You might want to have your battery tested before you pay to replace it.

I tried this reset as well, but it did not help (and I did not hear any clicking sound.) The only thing that happened is the same as before - the dashboard beeped a bunch of times and flashed remoteless key battery low. The difference in my situation, I think, is that it isn't just an annoying warning label. The key fob is actually malfunctioning. Sometimes it won't lock or unlock the car on the first or second try. Sometimes the car won't start right away and causes me to panic.

I've had the car four years and have had to change the key fob battery twice in the past month. The battery does in fact seem weak, like the key fob is draining the batteries at an alarming rate. I keep the key fob in the house, 25 or so feet from the car, with a wall and a door between them. The location of where I keep the fob hasn't changed in the past four years - only the behavior of the fob.

Did anyone in this thread just go ahead and purchase a brand new key fob???

 

[Draining Fob x2!]

Read all the posts in this thread. I'm having the same issue. Drained key fob. I used the spare, it registered as drained too. Bought new good quality batteries. Installed both. A month later both are drained again. No magnets, not keeping keys in pockets, no buttons are stuck, keep keys 50 ' from the car.... Unlikely that I got 2 bad fobs from dealership. Thinking this is a bad sensor in the car...a 999

 

[2011.2017.odyssey]

Read all the posts in this thread. I'm having the same issue. Drained key fob. I used the spare, it registered as drained too. Bought new good quality batteries. Installed both. A month later both are drained again. No magnets, not keeping keys in pockets, no buttons are stuck, keep keys 50 ' from the car.... Unlikely that I got 2 bad fobs from dealership. Thinking this is a bad sensor in the car...a 999

dollar store batteries?

if yes, get something brand name like energizer.

 

[Draining Fob x2!]

dollar store batteries?

if yes, get something brand name like energizer.

"...bought new, good quality (yes, they were energizer, no not from the dollar store) batteries...."

 

[kbh]

Look carefully at the two terminals that contact the edge of the battery. If you are rough when installing the battery they can get bent and form a poor contact or perhaps a short. I chewed through three batteries before I noticed this, but since repairing it, my remotes have been fine.

 

[Mr.Tugtug]

Just try to make sure the battery is sitting down properly in the battery holder (not shaking)

Removed the battery and tested to confirm if its really low battery to confirm. 2.9v is considered low.

Before replacing the battery just also get the new battery tested how much voltage, 3.4v atleast.

If still same, can do a current draw test if you got a partial shorted fob.

 

[Draining Fob x2!]

Look carefully at the two terminals that contact the edge of the battery. If you are rough when installing the battery they can get bent and form a poor contact or perhaps a short. I chewed through three batteries before I noticed this, but since repairing it, my remotes have been fine. View attachment 165918 View attachment 165918

Excellent point! One was dirty and skewed. I disassembled it, cleaned it and put it back together. It's clean and correctly connected.

 

[Bill S]

Excellent point! One was dirty and skewed. I disassembled it, cleaned it and put it back together. It's clean and correctly connected.

It is not the fob battery causing the message. It is the cars computer. It has to be rebooted. Place the fob on the dashboard. Open the hood and remove the negative battery cable for 5 minutes. Reconnect the cable and start the car. The message will be gone. The dealer will be happy to reprogram your fob for $90 or so and all they do is reboot the computer.

 

[jmlamiajr]

Well, experience with my 2016 FOB is that it will still lock or unlock from 20' away, so I'll suggest that that isn't far enough! Having said that, the distance between my FOB and my van, parked at our house, is 35-40' (through at least two walls). I would have thought that Honda could have included a note regarding FOB/van relationship and battery use... just sayin'

Both m6 fobs report low battery on 2017 Civic, yet if I test with a meter the battery is fine and if I reseat the battery it lasts a few days before I get the low battery indicator. One fob has never been used so it appears the fobs go bad after time whether used or not

 

[babypunkbat]

so i know this is a pretty old post but i have a 2009 saturn aura, i had to get a new fob not too long ago cuz a wire shorted in the old one and only the lock button worked (battery was fine, the unlock panic and trunk buttons just didnt work at all) and when i programmed the new fob, immediately got the low fob battery warning on my dash. i went out and bought new duracell batteries for it, changed it, and when i went to start my car immediately after, the warning still popped up. they’re perfectly good brand new batteries (had my dad test them), 3v just like the original battery, but im still getting the warning pop up. anyone potentially still on here and know whats up?

 

[babypunkbat]

so i know this is a pretty old post but i have a 2009 saturn aura, i had to get a new fob not too long ago cuz a wire shorted in the old one and only the lock button worked (battery was fine, the unlock panic and trunk buttons just didnt work at all) and when i programmed the new fob, immediately got the low fob battery warning on my dash. i went out and bought new duracell batteries for it, changed it, and when i went to start my car immediately after, the warning still popped up. they’re perfectly good brand new batteries (had my dad test them), 3v just like the original battery, but im still getting the warning pop up. anyone potentially still on here and know whats up?

im also aware this is a honda forum but i cant find anything saturn specific anywhere

 

[phattyduck]

im also aware this is a honda forum but i cant find anything saturn specific anywhere

Look for this issue on any number of other GM vehicles - Chevy Malibu is the closest relative, but there should be a number of other GM vehicles with the same/similar electronics.

-Charlie