Your Honda’s Maintenance Minder system isn’t just a random alert. It’s a smart, dynamic reminder tool that tells you exactly what kind of service your car needs based on real-time driving conditions. Understanding Honda Maintenance Minder codes helps ensure you never skip essential maintenance — and prevents paying for unnecessary services.
How Honda Maintenance Minder Codes Work
Honda vehicles don’t run on rigid maintenance schedules alone. Instead, they use onboard sensors that monitor engine conditions, oil quality, and driving behavior. When a predetermined threshold is reached, your dash will display a code (typically a letter + number). That’s your signal — your car’s way of saying “it’s time for this specific service.”
Here’s a general breakdown of the common codes:
Main service codes (the letter)
| Code | What it means | Typical cost |
|---|---|---|
| A | Engine oil change | $50 – $100 |
| B | Engine oil and filter change + multi-point inspection. The inspection covers brakes, tie rod ends, steering gearbox and boots, suspension, driveshaft boots, brake hoses and lines (including ABS/VSA), all fluid levels and condition, exhaust system, and fuel lines. | $90 – $180 |
Important: Honda Maintenance Minder only uses A and B as main codes. There are no C, D, or E main codes. The numbers that follow are separate sub-items.
Sub-item codes (the numbers)
| Code | Service | Typical cost | Rough interval |
|---|---|---|---|
| 1 | Tire rotation | $30 – $45 | Every oil service |
| 2 | Engine & cabin air filter replacement, drive belt inspection | $100 – $150 | ~30,000 mi |
| 3 | Transmission fluid + transfer case fluid (if equipped) | $100 – $200 | ~90,000 mi |
| 4 | Spark plugs, timing belt & water pump (if equipped), valve clearance inspection | $1,000 – $2,000 | ~100,000 mi |
| 5 | Engine coolant replacement | $150 – $250 | ~100,000 mi (then every 50,000) |
| 6 | Rear differential fluid replacement | $100 – $200 | ~30,000 mi |
| 7 | Brake fluid replacement | $80 – $130 | Every 3 years |
A code like B137 simply stacks these together: the B main service, plus sub-items 1, 3 and 7. Costs and intervals vary by model, engine and region — always confirm against your owner’s manual.
Why Paying Attention to Maintenance Minder Codes Matters
Economical & Efficient — The system prevents over-maintenance and helps you avoid unnecessary tasks.
Engine Longevity — Timely service helps preserve engine integrity and reduce wear.
Resale Value — Keeping up with the official schedule can enhance resale or trade-in value.
Safety & Reliability — Some codes trigger checks for vital systems (brakes, coolant, etc.), so ignoring them can lead to costly issues later.
What to Do When a Maintenance Minder Code Appears
Don’t panic — it’s not always urgent.
Consult your manual — compare the code to your model’s schedule.
Schedule a service — book a visit to your Honda shop or trusted mechanic.
Use genuine parts — for oil, filters, and fluids, always choose OEM or equivalent quality.
Reset the code — after service, the mechanic should reset the Maintenance Minder system properly.
Every Honda Maintenance Minder Code, Explained
Find your exact code below for a full breakdown of what the service includes, what it should cost, and how to handle it.
| Code | What it includes | Estimated total |
|---|---|---|
| Honda A1 | Engine oil change; Tire rotation | $80 – $145 |
| Honda A12 | Engine oil change; Tire rotation; Engine & cabin air filter replacement, drive belt inspection | $180 – $295 |
| Honda A13 | Engine oil change; Tire rotation; Transmission fluid + transfer case fluid (if equipped) | $180 – $345 |
| Honda A14 | Engine oil change; Tire rotation; Spark plugs, timing belt & water pump (if equipped), valve clearance inspection | $1,080 – $2,145 |
| Honda A15 | Engine oil change; Tire rotation; Engine coolant replacement | $230 – $395 |
| Honda A16 | Engine oil change; Tire rotation; Rear differential fluid replacement | $180 – $345 |
| Honda A17 | Engine oil change; Tire rotation; Brake fluid replacement | $160 – $275 |
| Honda A123 | Engine oil change; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Transmission fluid + transfer case fluid (if equipped) | $280 – $495 |
| Honda A135 | Engine oil change; Tire rotation; Transmission fluid + transfer case fluid (if equipped); Engine coolant replacement | $330 – $595 |
| Honda A137 | Engine oil change; Tire rotation; Transmission fluid + transfer case fluid (if equipped); Brake fluid replacement | $260 – $475 |
| Honda A1237 | Engine oil change; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Transmission fluid + transfer case fluid (if equipped); Brake fluid replacement | $360 – $625 |
| Honda B1 | Engine oil and filter change + multi-point inspection; Tire rotation | $120 – $225 |
| Honda B12 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine & cabin air filter replacement, drive belt inspection | $220 – $375 |
| Honda B13 | Engine oil and filter change + multi-point inspection; Tire rotation; Transmission fluid + transfer case fluid (if equipped) | $220 – $425 |
| Honda B14 | Engine oil and filter change + multi-point inspection; Tire rotation; Spark plugs, timing belt & water pump (if equipped), valve clearance inspection | $1,120 – $2,225 |
| Honda B15 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine coolant replacement | $270 – $475 |
| Honda B16 | Engine oil and filter change + multi-point inspection; Tire rotation; Rear differential fluid replacement | $220 – $425 |
| Honda B17 | Engine oil and filter change + multi-point inspection; Tire rotation; Brake fluid replacement | $200 – $355 |
| Honda B123 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Transmission fluid + transfer case fluid (if equipped) | $320 – $575 |
| Honda B124 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Spark plugs, timing belt & water pump (if equipped), valve clearance inspection | $1,220 – $2,375 |
| Honda B125 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Engine coolant replacement | $370 – $625 |
| Honda B135 | Engine oil and filter change + multi-point inspection; Tire rotation; Transmission fluid + transfer case fluid (if equipped); Engine coolant replacement | $370 – $675 |
| Honda B137 | Engine oil and filter change + multi-point inspection; Tire rotation; Transmission fluid + transfer case fluid (if equipped); Brake fluid replacement | $300 – $555 |
| Honda B1237 | Engine oil and filter change + multi-point inspection; Tire rotation; Engine & cabin air filter replacement, drive belt inspection; Transmission fluid + transfer case fluid (if equipped); Brake fluid replacement | $400 – $705 |
How to Reset the Honda Maintenance Minder
Once the service is done, the Maintenance Minder has to be reset or it will keep showing the same code. See our full guide: How to reset the Honda Maintenance Minder.
Honda Maintenance Minder FAQ
Can I keep driving with a Maintenance Minder code showing?
Usually yes, for a short while. The code is a reminder, not a fault warning. But once oil life reaches 0% and the indicator turns red, service is overdue and you risk accelerated engine wear.
Does the dealer have to do the service?
No. Any competent independent shop can perform every item in the Maintenance Minder schedule, usually for less. Keep your receipts so your maintenance record stays intact for warranty and resale purposes.
Why did my code change after I drove it?
The system recalculates continuously based on engine conditions and driving habits. Sub-items are added as their own intervals come due, so a B1 can become a B12 or B137 as mileage accumulates.
Will the code clear itself after service?
No. It has to be reset manually through the dashboard menu or by the shop that performed the work.
What does the wrench light mean?
The wrench icon is the Maintenance Minder indicator. It appears alongside the letter-and-number code to tell you scheduled service is due — it is not a check engine light and does not indicate a fault.