Acura Service Guide

Acura Maintenance Minder Codes Explained

See an A, B, A1, B1, B12 or another Maintenance Minder code on your Acura? The letter identifies the main maintenance item and the numbers identify additional services that are due. Use this guide to decode your message and understand your next service step.

Acura Maintenance Minder
Fast Answer

How Acura Maintenance Minder codes work

Acura Maintenance Minder combines a main service code A or B with numbered subcodes 1 through 7. Read every character together.

For example, B12 means the B main service plus subcode 1 and subcode 2.

Your exact maintenance requirements can vary by Acura model, model year, powertrain and operating conditions. Your vehicle's Owner's Manual or Owner's Guide should be used for vehicle-specific requirements.

What do Acura Maintenance Minder A and B mean?

Main Code

A Replace Engine Oil

Acura Maintenance Minder main code A indicates that the engine oil should be replaced.

If numbers appear with the A, complete those additional maintenance subitems as applicable to your vehicle.

Main Code

B Oil, Filter & Inspections

Main code B calls for engine oil and oil filter replacement along with Acura's specified inspections.

Those inspections generally include the brakes, steering and suspension components, driveshaft boots, brake hoses and lines, fluid levels and condition, exhaust system, and fuel lines and connections.

What do Acura Maintenance Minder codes 1–7 mean?

Numbered subcodes identify additional maintenance items. Not every Acura uses every subcode, so always confirm the requirements for your specific vehicle.

1 Tire Rotation

Rotate the tires as specified for the vehicle.

2 Filters & Drive Belt

Replace the engine air cleaner element and cabin air filter, and inspect the drive belt.

3 Transmission Fluid

Replace the transmission fluid according to the requirements for the specific vehicle and powertrain.

4 Spark Plugs & Related Maintenance

Replace the spark plugs and perform the applicable engine-related inspections. On vehicles where specified, this code can also include timing-belt and water-pump-related maintenance. Requirements vary by vehicle.

5 Engine Coolant

Replace the engine coolant.

6 Rear Differential Fluid

Replace the rear differential fluid on vehicles equipped with a serviceable rear differential.

7 Brake Fluid

Replace the brake fluid as specified for the vehicle.

Code Decoder

How do I read A1, B1 or B12?

Start with the letter, then add every numbered subcode displayed with it. The characters are not one single service number; they identify multiple maintenance items that are due together.

  • A1: A service + tire rotation
  • B1: B service + tire rotation
  • B12: B service + tire rotation + filters and drive-belt inspection
  • B13: B service + tire rotation + transmission fluid

If additional numbers appear on your display, add each corresponding maintenance subitem. Because requirements can vary by model and model year, confirm the displayed code against your Acura Owner's Manual or with an Acura service advisor.

When should I schedule Acura Maintenance Minder service?

15% Oil Life

Maintenance Due Soon

When remaining engine oil life reaches approximately 15%, Acura indicates that maintenance is approaching. This is a good time to plan your service visit.

5% Oil Life

Maintenance Due Now

At approximately 5% remaining oil life, the maintenance items should be serviced as soon as practical.

Maintenance Minder is not simply a fixed-mileage schedule

Your Acura calculates remaining engine oil life based on vehicle operation and displays the maintenance items that should be performed with the next oil service. This helps maintenance timing reflect how the vehicle is actually being used rather than relying only on a generic mileage interval.

Choose the right Acura service path

Sunnyside Acura Service

Acura maintenance in Nashua, NH

Sunnyside Acura's Service Department at 482 Amherst Street in Nashua provides Acura maintenance and repair support for drivers throughout Southern New Hampshire and Northern Massachusetts.

Our Acura Master-Trained Technicians use Acura service procedures and Genuine Acura Parts to help maintain the performance, reliability and long-term value of your Acura.

Frequently Asked Questions About Acura Maintenance Minder

What does Acura Maintenance Minder A mean?

Acura Maintenance Minder code A indicates that the engine oil should be replaced. Any numbered subcodes displayed with A identify additional maintenance items that are also due.

What does Acura Maintenance Minder B mean?

Code B calls for engine oil and oil filter replacement plus Acura's specified inspections of items such as the brakes, steering, suspension, fluids, exhaust and related systems.

What does B12 mean on an Acura?

B12 combines three Maintenance Minder items: B service, subcode 1 for tire rotation, and subcode 2 for the engine air cleaner, cabin air filter and drive-belt inspection.

Are Acura Maintenance Minder codes the same on every Acura?

No. Acura notes that not every vehicle uses the same Maintenance Minder subitems. Always check your vehicle's Owner's Manual or Owner's Guide for requirements specific to your model, model year and powertrain.

Can Maintenance Minder service be completed through Acura Accelerated Service?

Many routine Maintenance Minder items may qualify for Acura Accelerated Service at Sunnyside Acura. More extensive maintenance, diagnosis or repair may require a standard service visit.

Does the Acura Maintenance Program cover Maintenance Minder service?

Certain eligible Acura vehicles include complimentary scheduled maintenance determined by Maintenance Minder. Coverage and eligibility vary by vehicle and model year, so check the Acura Maintenance Program details or contact Sunnyside Acura with your VIN.

Older Acura Models

Legacy Acura Maintenance Guides

Own an older Acura? These archived model-year maintenance guides are preserved as historical references for the vehicles listed. Because maintenance requirements differ by model and model year, use the guide that corresponds to your vehicle and consult your Owner's Manual when confirming service requirements.

Ready to take care of your Acura?

Your Maintenance Minder tells you what your Acura needs. Sunnyside Acura can help you take care of the next step.