12V battery issues

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FDAD
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Location: Porto, Portugal

Post by FDAD »

Rew1mac wrote: Wed Jan 17, 2024 9:21 pm [Fob response question]
The car unlocks and lights come on every time a member of the family with key in pocket walks past.
This drains the 12v ancillary battery and makes the car vulnerable to intrusion for a short time.
I have searched the manual for some way to stop this happening but not yet found the answer.
Question.
Is it possible to configure the car so that it will only unlock the doors if a driver presses the correct button a fob, but not respond to a fob that is only passing by?
https://www.honda.co.uk/cars/owners/man ... f#page=336

https://www.honda.co.uk/cars/owners/man ... f#page=342
Honda E advance [Modern Steel Metallic] 8-) [DELIVERED JULY 2020] - 85 000Kms + ✌️🎂

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Marcin
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Post by Marcin »

20240118_201603.jpg

Honda dzisiaj sama po zakończeniu jazdy ,zaleca doładowanie akumlatora 12 V ze względu na niskie temperatury.Taki komunikat mam poraz pierwszy .
Marcin Sapała
Fortunatus
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Post by Fortunatus »

You could jump start the 12v battery with one of those handy power banks to get the car going:
Isotope Toast
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Joined: Thu Mar 17, 2022 12:02 pm

Post by Isotope Toast »

Whelp, it finally happened to me. Drove the GF to work on Tuesday morning, over a 1 hour trip there and back, then hooked up the charging cable.

Disconnected the cable last night around 5pm or so.

Went out just now and the car is dead. Noticed in over the past few weeks/months, random, but not too often clicking from the passenger side door - the famous door handle ghost? Probably. It always goes away and I've never shut the car off while it was happening. I assume that, upon unlocking the car last night to put the cable away, the ghost came back and, after the car was locked, kept activating the door handle and thereby killing the 12v.

Honda Service is on the way to recharge the battery, but as I've read, once dead pretty much always dead, so I need to go to the dealer. Car is 13 months old, about 12,500 km.

I live an hour away from the dealership, so keeping the car alive until I can make it to them will be fun.

P.S. It was stated at the very beginning of this thread, but, it can't be said enough: if your 12v battery dies and you open a door with the key, DO NOT CLOSE THE DOOR AGAIN!! The window will NOT go down like normal and you'll end up taking a nice chunk out of the A-pillar. (What a crap design!)
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londiniumperson
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Post by londiniumperson »

Isotope Toast wrote: Thu Feb 01, 2024 1:16 pm P.S. It was stated at the very beginning of this thread, but, it can't be said enough: if your 12v battery dies and you open a door with the key, DO NOT CLOSE THE DOOR AGAIN!! The window will NOT go down like normal and you'll end up taking a nice chunk out of the A-pillar. (What a crap design!)
But it looks nice :lol:

This design is what we get for having frameless doors, unless it's a convertible and then it doesn't matter.
2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
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EEEE
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Joined: Mon Aug 16, 2021 10:33 am

Post by EEEE »

Sorry to hear that your battery went flat. The clicking noise you describe, are you sure it wasn't the window trying to go up, or was it more like the handle retract?

The handle retracting only tended to happen when the car came to a stop and pulled off again.

When my window decided to have a 'funny five minutes' , it was very much every 2 seconds, a tiny attempt to close against its stop (a more rhythmic affair).

Regarding the pillarless windows, I too find them another unnecessary addition to the car. Passengers tend not to know how to close the door properly, and put grubby hand prints all over the window (or make me wince when they try to move a door by grabbing a piece of extended glass).

Also, as the car body flexes over undulating road services, I now start to hear creaking right by my right ear, where the window/door is moving ever so slightly against the seals. Pretty sure it wasn't like that when new. Quite annoying.
'21 e Advance - Charge Yellow - E1702RR alloys
'17 Civic Sport CVT
'00 Prelude 2.2VTi
Isotope Toast
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Post by Isotope Toast »

"But it looks nice" - yep, a slave to fashion. ;)


@EEEE
I sometimes get both the window and the handle. Both however, have only ever lasted some seconds.
With the window, it just moves a tiny bit. I usually move the window up and down a bit and it goes away. (What you describe is what mine does, too - just not for very long).
With the handle, it's retracted, but still sometimes randomly clicks - not loud like it is when it's actually opening....but maybe like it's trying to close it when it's already closed. This always goes away, too. Usually, locking/unlocking or opening the door makes it go away.

Yeah, I've noticed very slight wind noise from the right rear door, kinda near the handle area. Louder music always solves this. :)

Update on situation:
Roadside assistance came, attached a booster pack for literally 3 seconds, and the car lit right up. Drove for about 30km (as told to by Honda - I appreciate that they called me back to follow up) and bought a battery booster that will now also live in the car.
Next week I'll drop by the dealership and they will do a quick 1-over.
Fortunatus
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Joined: Sat Jan 13, 2024 2:05 pm

Post by Fortunatus »

Rewmac1 -I don't think the keyless entry can be disabled to enable the car to be locked and unlocked by the fob buttons only?
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