The B125 Honda maintenance code represents an oil and filter change with a vehicle inspection, tire rotation service, tan engine plus cabin air filter replacement, and a drive belt inspection, and engine coolant replacement.
The “B” stands for an oil and filter change with vehicle inspection, the “1” stands for a tire rotation, the “2” stands for an engine and cabin filter replacement with drive belt inspection, and the “5” stands for engine coolant replacement.
The B125 service is similar to the B12 service but it also adds coolant replacement. It is typically performed by a Honda dealership or with a local mechanic.
Honda B125 Service Cost
The B125 service typically costs $370 to $625. The cost will depend on the specific Honda vehicle you have and the labor cost rate.
| Item | What it covers | Typical cost |
|---|---|---|
| “B” | Oil and filter change, plus multi-point inspection | $90 – $180 |
| “1” | Tire rotation | $30 – $45 |
| “2” | Engine and cabin air filters, drive belt inspection | $100 – $150 |
| “5” | Engine coolant | $150 – $250 |
| Total Honda B125 service | $370 – $625 | |
For maintenance services like the B125, most dealerships and 3rd party auto shops offer coupons and discounts. We suggest calling several locations beforehand to get the best deals.
“B” Service Cost
The “B” service, an oil and filter change with a multi-point inspection, typically costs $90 to $180 depending on the Honda model you have. It is a 30 to 40-minute service with the cost mostly from the parts. Some Honda vehicles, like the 2022 Pilot, require synthetic oil which is more expensive.
RepairPal offers a “B” service (oil change and inspection) cost estimate for your vehicle and location but it is separated into two estimators:
Oil Change Estimator
Vehicle Inspection Estimator
“1” Service Cost
The “1” service, or tire rotation, typically costs $30 to $45. The tire rotation takes about 15 minutes of labor time. However, we suggest calling your Honda dealership or 3rd party auto repair shop for exact quotes.
RepairPal also offers a “1” service (tire rotation) cost estimate for your vehicle and location:
Tire Rotation Estimator
“2” Service Cost
The “2” service is an engine and air filter replacement with a drive belt inspection and typically costs $100 to $150. The whole service takes about 45 minutes of labor time. However, we suggest calling your Honda dealership or 3rd party auto repair shop for exact quotes.
RepairPal also offers estimators for the engine and air filter replacement part of the “2” service:
Engine Air Filter Replacement Estimator
Cabin Air Filter Replacement
“5” Service Cost
The “5” service for Honda vehicles can cost $150 to $250 depending on the amount of coolant your vehicle holds. However, we suggest calling your Honda dealership or 3rd party auto repair shop for exact quotes.
RepairPal offers an estimator for engine coolant for your vehicle and location:
Engine coolant Replacement Estimator
Honda B125 DIY Cost
Want to save money or prefer to rely on yourself for your Honda’s maintenance? Performing a B125 service yourself will cost $200 to $300 depending on the brands and oil type you use.
We suggest using Honda parts or any aftermarket equivalents. Below are some oil and oil filters made for most Honda vehicles. Check online or at your local auto parts store for exact part numbers.
Oil Filter
Genuine Honda/Acura filters typically run $10–$15. Check the current price on Amazon.
Honda B125 Crowdsourced Info
Honda B125 Maintenance Minder Description
The Honda maintenance minder code sheet above lists all the main and sub service items with B125 highlighted.
“B” Main Service Item
Honda describes the “B” service as an engine oil and filter change with a vehicle inspection. The parts included in the Honda vehicle inspection are:
- Front and rear brakes
- Tie rod ends, steering gearbox, and boots
- Suspension components
- Driveshaft boots
- Brake hoses and lines (including ABS/VSA)
- All fluid levels and condition of fluids
- Exhaust system
- Fuel lines and connections
“1” Sub Service Item
Honda describes the “1” service as a tire rotation. In addition to rotating the tires, dealerships will also check the tire pressure and treads for wear or punctures.
“2” Sub Service Item
Honda describes the “2” service as an engine air filter replacement, cabin air filter replacement, and drive belt inspection.
“5” Sub Service Item
Honda describes the “5” service as an engine coolant replacement.
When Is the Honda B125 Service Due?
The Maintenance Minder displays B125 when remaining oil life drops to 15%, which for most drivers falls between 5,000 and 7,500 miles after the last oil service — sooner with heavy city driving, towing or lots of short trips, later with steady highway use. Because the system reads actual operating conditions rather than counting miles, the exact figure differs from car to car.
The sub-items attached to this code run on their own longer intervals:
- 1 — Tire rotation: Every oil service
- 2 — Engine & cabin air filter replacement, drive belt inspection: ~30,000 mi
- 5 — Engine coolant replacement: ~100,000 mi (then every 50,000)
That is why the code changes over time: a B1 becomes B125 once those additional items fall due in the same visit.
Honda Models That Show the B125 Code
The B125 code can appear on any Maintenance Minder–equipped Honda, including the Honda Accord, Honda Civic, Honda CR-V, Honda Pilot, Honda Odyssey, Honda HR-V, Honda Passport, Honda Ridgeline and Honda Insight. The services it calls for are identical across the range, but oil capacity, fluid specification and labor time vary by engine. Always confirm the specification your engine requires in the owner’s manual.
Related Honda Service Codes
- Honda B12 — the same service without engine coolant replacement
- All Honda Maintenance Minder codes — the full reference table
The Coolant Change in B125
Sub-item 5 is engine coolant, and it is the longest-interval item in B125. Honda’s factory fill is Type 2 blue long-life coolant, and the first change is not due until roughly 10 years or 120,000 miles — after which it comes round every 5 years or 60,000. Many owners never see a 5 on a car they bought new.
Use Honda Type 2 or a coolant explicitly rated as compatible. The green universal antifreeze on the shelf at a parts store uses different corrosion inhibitors, and mixing chemistries can produce a gel that blocks the radiator and heater core. Honda’s coolant is pre-mixed and does not want diluting further.
The job itself is more than a drain and refill. These engines trap air, and a pocket left in the system produces a hot spot and a temperature gauge that swings. Proper bleeding through the bleeder screw with the engine at temperature is what separates a good coolant service from one that leaves you with an overheating problem you did not have before.
Where this sits in B125: the “B” is an oil and filter change with the multi-point inspection, sub-items 1 and 2 add the tire rotation, the filter work, and sub-item 5 is the item described above. Each is tracked separately by the Maintenance Minder, so B125 is a bundle of independent jobs that happened to come due together, not one procedure with a single price.
Honda B125 Service FAQ
What does the Honda B125 code actually include?
Reading it left to right: the “B” is an oil and filter change with a multi-point inspection, and each number after it is a separate job. For B125 that means a tire rotation, engine and cabin air filters with a drive belt inspection, an engine coolant change. They arrive together because the Maintenance Minder counts each item down on its own schedule and shows you whatever has come due at the same time, which is why the same car shows different combinations at different points in its life.
How long can I leave the B125 service?
The oil portion is what has a real deadline. The wrench appears at 15% oil life, sharpens at 5%, and at 0% the display starts counting how far overdue you are. The remaining items in B125 tolerate a few hundred miles of delay, but there is no benefit in stretching it.
Can I do the Honda B125 service myself?
Partly, and it is worth splitting the job. The oil and the tire rotation are straightforward at home. The coolant needs proper bleeding afterwards, which is the step most home jobs skip.
Is the B125 service covered by Honda Service Pass?
No. Honda Service Pass covers the basic A1 and B1 services — oil, filter, tire rotation and inspection — on 2025 and newer Hondas for one year or 12,000 miles. B125 includes work beyond that scope, so the extra items are chargeable even on a car still inside the term. Ask for an itemized invoice: the oil and rotation portion may still be covered while the rest is not.
Does B125 mean something is wrong with my Honda?
No. It is the maintenance schedule, not the diagnostics. B125 shows as a wrench symbol and simply means the algorithm has counted those items down to zero. A check engine light is a different system reporting a stored fault. If both are lit they are unrelated, and the check engine light is the one to investigate first.
How do I reset the B125 code?
Touchscreen cars: Settings, then Vehicle, then Maintenance Reset. Older models: hold the SEL/RESET button or trip stalk for around ten seconds with the ignition on. Reset only the items actually done — on multi-item codes like B125 you can reset individual sub-items, and clearing the whole code after doing only the oil will hide the jobs you still owe the car. Our Honda Maintenance Minder reset guide covers it model by model.