[JeffJo]

I have a 2018 Accord Hybrid and it’s getting close to 30K miles. Has anyone done a transmission fluid change? I can’t seem to find any information on a how-to or if it’s possible. Thanks in advance.

The user's manual says "don't do it yourself."

I'm sure some DIY'ers are qualified to do it, but to me this says "If you don't already know, you aren't one of them." I know I'm not, so I haven't bothered to look for how to do it.

That said, the schedule is "watch the maintenance minder for code B3." There is a disclaimer in the manual that says if you drive at low speeds in mountainous regions, do it at 47,500 miles or 3 years. That probably puts a reasonable interval for normal usage at around 60,000 miles, which I have seen advertised by Honda dealers.

 

[JeffJo]

The only Code to look for is "3". That's the transmission fluid service minder. "B" just means Oil and filter change with a multi-point inspection.

"A" and "B" are main codes. They essentially tell you if you need just an oil change, or more major maintenance.

The numbers 1 thru 7 are subcodes. They should only appear in conjunction with a main code. I suppose A3 could appear, but Honda's stated purpose is to use the subcodes to prevent adding time-consuming service to simple ones.