The Honda B137 service code is a maintenance alert that means your vehicle is due for a combination of services: an engine oil and filter change, a full vehicle inspection, tire rotation, transmission and transfer fluid replacement, and a brake fluid flush. It’s part of Honda’s smart Maintenance Minder system, which monitors your driving habits and engine conditions to determine when certain services are needed.
The benefit of the Honda B137 code is that it groups these services into one visit, saving time and ensuring your vehicle receives comprehensive care when it needs it most.
Breaking Down the B137 Code
Each character in the Honda B137 code corresponds to a specific service item:
B: Oil and filter change plus a detailed multi-point inspection.
1: Tire rotation to promote even tread wear and improve handling.
3: Transmission fluid replacement and transfer case fluid change (if applicable).
7: Complete brake fluid flush for safe, responsive braking.
Understanding what the Honda B137 code covers can help you plan for this service, both in terms of cost and vehicle downtime.
Honda B137 Maintenance Minder Description
The Honda maintenance minder code sheet above lists all the main and sub service items with B137 highlighted.
Where Can You Get Honda B137 Service?
Most Honda owners have the Honda B137 service performed at a dealership, where technicians follow brand-specific procedures using OEM parts. However, independent auto shops can also carry out the same service and often at a lower cost.
Some experienced DIYers even perform parts of the Honda B137 service themselves. While oil changes and tire rotations are beginner-friendly, transmission and brake fluid replacements are more advanced and require precision to avoid issues.
“B” Service: Oil Change and Inspection
The “B” part of the Honda B137 code goes beyond just changing oil—it includes a full inspection of your vehicle’s critical systems. This typically covers:
Brake pads and rotors
Steering and suspension components
Driveshaft boots
Brake lines and hoses (including ABS/VSA)
Fluid levels and condition
Exhaust system
Fuel system connections
Completing the “B” service as part of the Honda B137 routine helps identify wear-and-tear items before they become bigger, more expensive problems.
Tire Rotation
The “1” in Honda B137 indicates a tire rotation, which helps extend tire life and ensures balanced handling. Technicians will often also check for tread wear, damage, and adjust pressure levels during this service.
This component of the Honda B137 code is simple but essential, especially if your vehicle sees a mix of highway and city driving.
Transmission and Transfer Fluid
The “3” portion of the Honda B137 service code addresses your transmission system. For automatic models, this includes flushing and replacing the transmission fluid. If your vehicle is AWD or 4WD, it also includes transfer case fluid replacement.
Transmission fluid breaks down over time, and as part of the Honda B137 maintenance, this step protects against rough shifting and long-term transmission wear.
Brake Fluid Replacement
The “7” sub-code in Honda B137 refers to a full brake fluid replacement. Brake fluid attracts moisture over time, which can reduce braking effectiveness and corrode internal brake components.
This service flushes the old fluid and replaces it with fresh, clean fluid—restoring brake performance and completing the safety component of the Honda B137 maintenance checklist.
Why Honda B137 Service Matters
Ignoring the Honda B137 code can lead to a gradual decline in your vehicle’s performance and safety. Each component—from oil and tires to fluids—works together to ensure your vehicle runs smoothly and stops reliably.
Staying on top of the Honda B137 service not only prevents costly repairs but also helps retain the long-term value of your vehicle.
Honda B137 Service Cost
| Item | What it covers | Typical cost |
|---|---|---|
| “B” | Oil and filter change, plus multi-point inspection | $90 – $180 |
| “1” | Tire rotation | $30 – $45 |
| “3” | Transmission fluid (and transfer fluid on AWD) | $100 – $200 |
| “7” | Brake fluid | $80 – $130 |
| Total Honda B137 service | $300 – $555 | |
The B137 service typically costs $300 to $555. The cost will depend on the specific Honda vehicle you have and the labor cost rate.
For simple maintenance services like the B137, 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: https://repairpal.com/estimator/oil-change-cost
Vehicle Inspection Estimator: https://repairpal.com/estimator/pre-purchase-car-inspection-cost
“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
“3” Service Cost
The “3” service for Honda vehicles can cost $100 to $200 from the fluid depending on your vehicle. However, we suggest calling your Honda dealership or 3rd party auto repair shop for exact quotes.
RepairPal offers an estimator transmission fluid but not the transfer case fluid replacement portion of the “3” service:
Transmission Fluid Replacement Estimator
“7” Service Cost
The “7” service for Honda vehicles can cost $80 to $130 depending on your vehicle. However, we suggest calling your Honda dealership or 3rd party auto repair shop for exact quotes.
Honda B137 DIY Cost
Want to save money or prefer to rely on yourself for your Honda’s maintenance? Performing a B137 service yourself will cost $110 to $250 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
Use a Genuine Honda oil filter for your oil change. Prices fluctuate between $10-$15 for an oil filter.
Brake Fluid
Check your owner’s manual if your Honda vehicle uses DOT 3 or DOT 4 brake fluid. Then check prices for your brake fluid
When Is the Honda B137 Service Due?
The Maintenance Minder displays B137 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
- 3 — Transmission fluid + transfer case fluid (if equipped): ~90,000 mi
- 7 — Brake fluid replacement: Every 3 years
That is why the code changes over time: a B1 becomes B137 once those additional items fall due in the same visit.
Honda Models That Show the B137 Code
The B137 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 — and AWD or SH-AWD models add transfer case fluid to sub-item 3. Always confirm the specification your engine requires in the owner’s manual.
Related Honda Service Codes
- Honda B13 — the same service without brake fluid replacement
- Honda A137 — the same items with an oil change only, no filter or inspection
- All Honda Maintenance Minder codes — the full reference table
Brake Fluid: The One Part of B137 That Ignores Your Mileage
Sub-item 7 is a brake fluid replacement, and it is the odd one out in B137 because it runs on a calendar rather than an odometer. Honda calls for brake fluid every three years regardless of mileage. A car that covers 4,000 miles a year needs it on exactly the same schedule as one covering 20,000.
The reason is that brake fluid is hygroscopic: it absorbs moisture from the air through the hoses and reservoir over time. Water lowers the boiling point, and fluid that boils under hard or sustained braking turns to vapor, which compresses. That is the long, soft pedal people describe coming down a mountain pass. It is also why the service is not optional on a low-mileage car.
Honda specifies DOT 3, and the job is a proper bleed at all four corners until clean fluid runs through, not a reservoir top-up. Old fluid is visibly darker than new. If a shop quotes B137 and the price looks light, it is worth confirming the brake fluid line is actually a flush.
Where this sits in B137: the “B” is an oil and filter change with the multi-point inspection, sub-items 1 and 3 add the tire rotation, the transmission fluid, and sub-item 7 is the item described above. Each is tracked separately by the Maintenance Minder, so B137 is a bundle of independent jobs that happened to come due together, not one procedure with a single price.
Honda B137 Service FAQ
What does the Honda B137 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 B137 that means a tire rotation, a transmission fluid change, a brake fluid replacement. 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 B137 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 brake fluid in B137 is the item people wrongly treat as flexible: it is on a three-year clock and a low-mileage car is not exempt.
Can I do the Honda B137 service myself?
Partly, and it is worth splitting the job. The oil and the tire rotation are straightforward at home. The remaining fluid work needs the right Honda-specific fluid rather than a universal equivalent.
Is the B137 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. B137 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 B137 mean something is wrong with my Honda?
No. It is the maintenance schedule, not the diagnostics. B137 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 B137 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 B137 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.