The A12 Acura maintenance code represents an oil change, tire rotation service, engine and cabin air filter replacement, and drive belt inspection. The “A” stands for an oil change, the “1” stands for a tire rotation, and the “2” stands for an engine and cabin filter replacement with drive belt inspection.
The A12 service is similar to the A1 service but it adds engine and cabin filter replacement and drive belt inspection. It is typically performed by a Acura dealership or with a local mechanic but it can also be performed at home without needing special tools.
Acura A12 Maintenance Minder Description
The Acura maintenance minder code sheet above lists all the main and sub service items with A12 highlighted.
“A” Main Service Item
Acura describes the “A” service as an engine oil change only. Although it recommends oil change only, it is best practice to replace the oil filter whenever the oil is changed.
“1” Sub Service Item
Acura 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
Acura describes the “2” service as an engine air filter replacement, cabin air filter replacement, and drive belt inspection.
Acura A12 Service Cost
The A12 service typically costs $180 to $295. The cost will depend on the specific Acura vehicle you have and the labor cost rate.
| Item | What it covers | Typical cost |
|---|---|---|
| “A” | Engine oil change | $50 – $100 |
| “1” | Tire rotation | $30 – $45 |
| “2” | Engine and cabin air filters, drive belt inspection | $100 – $150 |
| Total Acura A12 service | $180 – $295 | |
For simple maintenance services like the A12, most dealerships and 3rd party auto shops offer coupons and discounts. We suggest calling several locations beforehand to get the best deals.
“A” Service Cost
The “A” service, or oil change, typically costs $50 to $100 depending on the Acura model you have. It is a 30 to 40-minute service with the cost mostly from the parts. Some Acura vehicles, like the 2022 MDX, require synthetic oil which is more expensive.
RepairPal also offers an “A” service (oil change) cost estimate for your vehicle and location:
Oil Change 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 Acura 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 Acura 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
Acura A12 DIY Cost
Want to save money or prefer to rely on yourself for your Acura’s maintenance? Performing an A12 service yourself will cost $100 to $200 depending on the brands and oil type you use.
We suggest using Acura parts or any aftermarket equivalents. Below are some oil and oil filters made for most Acura 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.
When Is the Acura A12 Service Due?
The Maintenance Minder displays A12 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
That is why the code changes over time: an A1 becomes A12 once those additional items fall due in the same visit.
Acura Models That Show the A12 Code
The A12 code can appear on any Maintenance Minder–equipped Acura, including the Acura MDX, Acura RDX, Acura TLX, Acura ILX, Acura Integra, Acura RLX, Acura ZDX and Acura TSX. 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 Acura Service Codes
- Acura A1 — the same service without engine & cabin air filter replacement, drive belt inspection
- Acura B12 — the same items, but with an oil filter change and full multi-point inspection
- Acura A123 — adds transmission fluid + transfer case fluid (if equipped)
- Honda A12 — the Honda equivalent of this code
- All Acura Maintenance Minder codes — the full reference table
- Acura A1237 service code
- Acura A13 service code
- Acura B123 service code
- Acura A135 service code
Is Acura A12 Service Free Under Complimentary Maintenance?
Partly, at best. Acura’s complimentary maintenance covers the basic A1 and B1 services — oil, filter, tire rotation and inspection — for two years or 24,000 miles on model year 2023 and 2024 vehicles, and only the first scheduled service within 12 months or 12,000 miles on model year 2025. The A12 service includes items beyond that scope, so expect to pay for the extras.
Three conditions apply either way. The work must be done at a participating Acura dealer, Acura Genuine parts and oil must be used, and the clock runs from the vehicle’s original in-service date rather than your purchase date. The benefit does transfer to a second owner for whatever remains of the term, which is worth checking if you bought your Acura used.
What A12 Means for SH-AWD Acuras
The A12 service itself is the same work whether your Acura is front-wheel drive or SH-AWD. What differs is what tends to appear alongside it. Acura’s Super Handling All-Wheel Drive uses a torque-vectoring rear unit that Honda does not fit to its own models, and it has its own fluid service — sub-item 6, rear differential fluid, due at 15,000 miles initially and every 30,000 miles thereafter.
So if you drive an SH-AWD MDX, RDX, TLX or ZDX, do not be surprised when A12 arrives with a 6 attached. Front-wheel-drive Acuras — ILX, Integra, and the front-drive TLX and RDX variants — never show a 6, because there is no rear differential to service.
Acura A12 Service FAQ
How long can I drive with the A12 code showing?
The Maintenance Minder is counting down oil life, not mileage, so the honest answer is that it depends on how you drive. Acura’s display gives you a wrench symbol and a percentage: at 15% you get the first reminder, at 5% the message becomes more insistent, and at 0% it changes to a negative mileage count that tells you how far past due you are. Treat 15% as a booking prompt rather than a deadline. The oil is the part with a real clock on it; the other items in A12 tolerate a few hundred miles of delay without harm.
Can I do the Acura A12 service myself?
Yes, all of it. The cabin filter on most Acuras sits behind the glovebox and comes out in a couple of minutes; the engine air filter is a few clips. Neither needs tools beyond a screwdriver.
Is the A12 service covered by Acura complimentary maintenance?
Probably not. Acura’s complimentary maintenance program covers the basic A1 and B1 services — oil, filter, tire rotation and inspection — for two years or 24,000 miles on model year 2023 and 2024 cars, and only the first scheduled service within 12 months or 12,000 miles on model year 2025. A12 goes beyond that basic scope, so the additional items are normally chargeable even if your car is still inside the program. It is still worth asking the service advisor to itemize the invoice, because the oil and rotation portion may be covered while the rest is not.
Can I get the A12 service done at a Honda dealer?
Yes, and it is often cheaper. Acura is Honda’s luxury division, the two share a parts network, and many of the fluids and filters carry the same part number with a different label on the box. A Honda service department can perform A12 on an Acura without difficulty. The two caveats: if your car is still inside the complimentary maintenance term you must use an Acura dealer to have it covered, and if you own an SH-AWD model, confirm the shop has worked on the torque-vectoring rear unit before, since it is Acura-specific hardware Honda does not fit.
Does the A12 code mean something is broken?
No. A12 is a scheduled maintenance reminder generated by the Maintenance Minder’s algorithm, not a diagnostic trouble code. It appears as a wrench symbol. A check engine light is a separate system entirely and indicates a fault the engine control unit has logged. If you are seeing both at once, they are unrelated and the check engine light is the one to deal with first.
How do I clear the A12 code after the service?
If an Acura dealer did the work they will reset it for you. If you did it yourself, the method depends on the car: models with a touchscreen use Settings then Vehicle then Maintenance Reset, while older models use the SEL/RESET stalk button or the trip knob held for about ten seconds with the ignition on. Reset it only after the work is actually done — the Minder’s countdown is what schedules your next service, and a premature reset throws the whole schedule out. Our Acura Maintenance Minder reset guide covers every method by model.