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
The B137 service typically costs $180 to $400. 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, or oil change, typically costs $50-$100 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 over $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
