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Discussion Starter · #1 ·
Maintenance code B123

I have a 2018 accord sport 2.0T and have 58,700 on it. About an hour ago my car gave me a maintenance code of B123. I’m a huge gear-head and as you can tell, I keep up on everything of course. I googled the code, and the internet says the obvious things: change oil, oil filter, in cabin filter plus transmission fluid. I don’t think my transmission fluid needs to be changed, but I wanted to ask here anyways. Thanks for any help and suggestions!
I researched online that it’s about $225 and I’m having a new baby soon, and trying to save a little. It of money. Lol. Thanks a bunch everyone!
 

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With the mileage you have on your car it's probably due for transmission fluid change. On my GMC Yukon it is recommended to change transmission fluid at 60k intervals.
 

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yeah, I gotcha thanks for the tip/suggestion… I appreciate it.
You're welcome. If you interested in a DIY project here is instructions on how to change it.
 

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Discussion Starter · #7 ·
You're welcome. If you interested in a DIY project here is instructions on how to change it.
ha ha thanks I appreciate it.l however, I’m not that adventurous .. I have a new baby coming, and trying to keep costs downs just a little bit.l that’s all. I love & care for my car very much of course. Just saying,lol
 

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If this is an auto trans the trans fluid is very easy to change. I changed mine at 30K miles. It takes about 4 quarts if I remember correctly. The Honda fluid was about $10 a quart. It's no different than changing your oil, unless your doing a filter change with the fluid. Still the filter is an easy change if your a gear head.
 

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Discussion Starter · #9 ·
If this is an auto trans the trans fluid is very easy to change. I changed mine at 30K miles. It takes about 4 quarts if I remember correctly. The Honda fluid was about $10 a quart. It's no different than changing your oil, unless your doing a filter change with the fluid. Still the filter is an easy change if your a gear head.
Ah, ok gotcha. I did not think about it like that quite honestly..lol
 

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Facts are Oil Filters Life Span & Dirt Carrying Capacity are More Important - then Changing of Oil .

Actual Change Timing - Cars Mileage & Way it's Driven is ( City vs Highway ) Chiming In to Dictate when that Happens ..

Most Import Is the Level , as Long as Level is Up & Oil Looks & Smells Good - I'd run it Longer , but Filter needs to be Changed some Time between 40K ~ 60K
Filter is somewhat Small , Even Thou Honda's Trans Fluid is Very Thin - like - Zero Weight - It will Past Filter but ( Not sure If that Trans Filter has a By Pass Built into It )
 

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Discussion Starter · #11 ·
Facts are Oil Filters Life Span & Dirt Carrying Capacity are More Important - then Changing of Oil .

Actual Change Timing - Cars Mileage & Way it's Driven is ( City vs Highway ) Chiming In to Dictate when that Happens ..

Most Import Is the Level , as Long as Level is Up & Oil Looks & Smells Good - I'd run it Longer , but Filter needs to be Changed some Time between 40K ~ 60K
Filter is somewhat Small , Even Thou Honda's Trans Fluid is Very Thin - like - Zero Weight - It will Past Filter but ( Not sure If that Trans Filter has a By Pass Built into It )
Great thanks again for all your help! Like I said, I really appreciate it!
 
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