# 2008 Honda Fit - Horn sounds different if I have been driving and have the AC on than with AC off

**URL:** <https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010>\
**Category:** Maintenance/Repairs\
**Tags:** fit, honda\
**Created:** [September 17, 2011, 11:20pm UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010 "2011-09-17T23:20:39Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![frank438](https://avatars.discourse-cdn.com/v4/letter/f/c4cdca/32.png) [@frank438](https://community.cartalk.com/u/frank438)\
**Post date:** [September 17, 2011, 11:20pm UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010/1 "2011-09-17T23:20:39Z")

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When I set the locks and alarm after driving with the AC on, the horn sounds muffled. If the AC was not on, it sounds normal. Any ideas what this could be? I am curious, should I expect this to come back? Is it a sign of a problem I need to concern myself with?

I suspect it’s the battery, and just had it replaced today because the dealer said it was functional, but holding less of a charge than it should.

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [September 18, 2011, 12:32am UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010/2 "2011-09-18T00:32:26Z")

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I can’t tell you what the horn on my car sounds like, because I never use it.

You need something more substantial to worry about.

I’m sure your local Honda dealer was happy to sell you a battery you didn’t need.

You have a non-problem.

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**Author:** ![frank438](https://avatars.discourse-cdn.com/v4/letter/f/c4cdca/32.png) [@frank438](https://community.cartalk.com/u/frank438)\
**Post date:** [September 18, 2011, 12:41am UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010/3 "2011-09-18T00:41:52Z")

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Hmmm…they said the battery was old enough, and we live in a desert so it was apt to fail soon. Plus, the battery was killed once due to a dome light being left on over the weekend.

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**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\
**Post date:** [September 18, 2011, 11:52am UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010/4 "2011-09-18T11:52:50Z")

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Well, from other comments in this forum, these cars aren’t known for having a very robust battery.

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**Author:** ![frank438](https://avatars.discourse-cdn.com/v4/letter/f/c4cdca/32.png) [@frank438](https://community.cartalk.com/u/frank438)\
**Post date:** [September 18, 2011, 4:56pm UTC](https://community.cartalk.com/t/2008-honda-fit-horn-sounds-different-if-i-have-been-driving-and-have-the-ac-on-than-with-ac-off/68010/5 "2011-09-18T16:56:58Z")

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Whew, hate to think I finally found a mechanic that seems pretty legit only to get ripped off. I think he was right that the battery was less than well, and I don’t want my wife ever getting stranded, so I baby her car.