Honda B12 service: what’s included
A Honda B12 service is a B service plus items 1 and 2: change the engine oil and oil filter, inspect the car, rotate the tires, and replace both air filters. The two filters are the engine air filter (Honda calls it the air cleaner element) and the cabin air filter (the dust and pollen filter). On many models, such as the 2022 Pilot, item 2 also includes a drive belt inspection.
On this page (7 sections)
What a B12 service includes
| Part of the code | Job |
|---|---|
| B | Replace the engine oil and oil filter |
| B | Inspect the brakes, steering parts, suspension, driveshaft boots, brake hoses and lines, exhaust, and fuel lines; check all fluids |
| 1 | Rotate the tires |
| 2 | Replace the engine air filter (air cleaner element) |
| 2 | Replace the cabin air filter (dust and pollen filter) |
| 2 (many models) | Inspect the drive belt |
From Honda owner’s manuals for 2025, 2022, and 2007 models. Check yours: the list can differ by model and year.
B12 is a B1 service with the two filters added. The filters are what make it cost more.
The two filters
The engine air filter cleans the air the engine breathes. A clogged one restricts that air. The cabin air filter cleans the air that comes through the vents into the car. A dirty one can make the fan weak and the cabin smell musty.
Honda adds a fixed interval for hard conditions that the display does not sense. The 2025 Civic Hatchback Hybrid manual says to replace the engine air filter every 15,000 miles if you drive in dusty conditions, and the cabin air filter every 15,000 miles if you drive mostly in cities with a lot of soot in the air from industry and diesel vehicles. In those places, the filters may be due before the code shows 2.
More on each part: engine air filter replacement and cabin air filter replacement.
How much a B12 service costs
There is no set price for a Honda B12 service, but you can build a rough guide from published prices for its parts. Treat it as a starting point for comparing estimates, not as a quote.
| Part of B12 | Published price |
|---|---|
| Oil and filter change | About $64 with conventional oil, about $118 with full synthetic (AAA shop survey, scaled to late 2026) |
| Tire rotation | About $45–$75 (Consumer Reports); some shops include it with the oil change |
| Engine air filter and cabin air filter | No national figure we could verify: the part price for your model plus labor |
| Rough total before the filters | About $109–$193 |
A rough guide from the figures on our oil change cost and tire rotation pages, checked November 2026. Dealer labor rates, the amount of oil your engine takes, and shop fees move the total.
If a quote is well above this plus the two filters, ask for it item by item. Each filter should be listed separately, with part prices and labor. Doing the two filters yourself saves the labor on that line.
A few things to check on the estimate:
- Each item matches the code. Fuel system cleaning, engine flushes, and throttle body cleaning are not part of B12.
- The filters are new, not “inspected” or “blown out.” Item 2 says replace.
- The oil grade matches your owner’s manual.
For the oil change part, see our guide to oil change cost.
Which parts you can do yourself
On many cars, both filters are among the easiest jobs to do at home. The engine air filter usually sits in a box under the hood held by clips. The cabin air filter is often behind the glove box. Your owner’s manual shows where they are and how to reach them. Buy the filter for your exact model and year, note the direction of the airflow arrow, and take a photo before you take anything apart.
If the shop does the oil, tires, and inspection, you can ask it to leave the filters out and do them yourself. Then reset only the items you finished: see how to reset Honda oil life.
What to write down
- Date, odometer, and the code (B12)
- Oil grade and amount, oil filter part number
- Engine air filter and cabin air filter part numbers
- Tire rotation done
- What the inspection found, and the total price
A car maintenance log keeps these in one place, so the next set of filters is easy to buy. The full list of codes is on the Honda maintenance codes chart; A12 is the same job without the oil filter and the inspection.
FAQ
What does B12 mean on a Honda?
The B service (oil and filter change and inspection), plus 1 (rotate the tires), plus 2 (replace the engine air filter and the cabin air filter). On many models, item 2 also includes a drive belt inspection.
How much does a Honda B12 service cost?
As a rough guide, an oil and filter change (about $64 conventional to $118 synthetic) plus a tire rotation (about $45–$75) comes to about $109–$193, before the two filters and their labor. Your engine, filters, and shop change the total, so get a written estimate that lists each filter.
Can I replace the air filters myself on a B12 service?
Often, yes. On many Hondas both filters are reachable without tools or with simple tools. Your owner’s manual shows how. Reset item 2 on the display after you finish.
Milealot is an independent site, not affiliated with or endorsed by American Honda Motor Co. Honda and Maintenance Minder are trademarks of their owner and are used here only to name the system.
Sources
- Honda, 2025 Civic Hatchback Hybrid owner’s manual, “To Use Maintenance Minder” (B list, sub items 1 and 2, 15,000-mile filter rules; archived copy, checked November 12, 2026): techinfo.honda.com (archived)
- Honda, 2022 Pilot owner’s manual, Maintenance Minder pages (sub item 2 with drive belt inspection) (checked November 12, 2026): owners.honda.com
- Honda, 2007 owner’s manual, Maintenance Minder pages (sub item 2 with drive belt inspection; archived copy): techinfo.honda.com (archived)
- AAA, Synthetic vs. conventional engine oil, research report, 2017 (shop survey: typical oil change $38 conventional, $70 synthetic): ace.aaa.com
- U.S. Bureau of Labor Statistics, CPI for all urban consumers, motor vehicle maintenance and servicing (series CUUR0000SETD; June 2017 to October 2026, about +69%) (checked November 12, 2026): data.bls.gov
- Consumer Reports, Your car maintenance checklist (tire rotation about $45–$75; updated May 6, 2026; checked November 12, 2026): consumerreports.org