If your dashboard displays the Acura B1 service code, it means your vehicle is due for a combination of maintenance tasks designed to keep your Acura performing reliably. In this guide, we’ll explain what the Acura B1 service includes, how much it costs, and why it’s an essential part of your car’s maintenance schedule.
What Does the Acura B1 Service Code Mean?
The Acura B1 maintenance code combines two different service reminders:
- “B”: Engine oil and filter change + detailed multi-point vehicle inspection
- “1” : Tire rotation and pressure/tread inspection
When you see “B1” on your Acura’s Maintenance Minder display, it means your vehicle needs both of these services performed soon.
Acura B1 Service Overview
The Acura maintenance minder code sheet above lists all the main and sub service items with B1 highlighted.
The B1 service is one of the most common maintenance codes for Acura owners. It’s similar to an A1 service, but with additional inspections. Acura recommends performing the B1 service roughly every 7,500 to 10,000 miles or every 12 months, depending on driving conditions.
B1 Service Includes:
1. Engine Oil and Filter Change (Main Service B)
This includes draining old engine oil, replacing the oil filter, and refilling with fresh oil (synthetic or conventional depending on your model). Regular oil changes help extend engine life and maintain performance.
2. Multi-Point Vehicle Inspection
During the B1 service, your Acura technician will inspect critical systems and components, including:
- Front and rear brakes
- Steering gearbox, tie rods, and boots
- Suspension and driveshaft boots
- Brake hoses and lines (including ABS/VSA)
- Exhaust system and fuel lines
- Fluid levels and condition (brake, transmission, coolant, power steering)
3. Tire Rotation (Sub-Service 1)
Tires are rotated to promote even wear, improve handling, and extend lifespan. The technician will also check:
- Tire pressure
- Tread depth
- Signs of uneven wear or punctures
Acura B1 Service Cost
The average cost of an Acura B1 service ranges from $100 to $250, depending on your location, Acura model, and labor rates. Here’s a breakdown:
| Service Type | Typical Cost | Time Required |
|---|---|---|
| Oil & Filter Change (B) | $50 – $100 | 30–45 minutes |
| Tire Rotation (1) | $30 – $45 | 15–20 minutes |
| Full B1 Service | $100 – $250 | 45–75 minutes |
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
RepairPal also offers a “1” service (tire rotation) cost estimate for your vehicle and location:
https://repairpal.com/estimator/tire-rotation-cost
Money-Saving Tip
Many Acura dealerships and independent repair shops offer coupons or service specials for maintenance like the B1. Always check online or call ahead for current deals.
Acura B1 DIY Service Cost
Prefer doing your own maintenance? Performing a DIY Acura B1 service can cost around $50–$70, depending on your oil and filter brand.
Recommended Parts for DIY:
- Engine oil: Synthetic 0W-20 or 5W-30 (check your owner’s manual)
- Oil filter: Genuine Acura or high-quality aftermarket brand (e.g., Fram, Bosch, Mobil 1)
Ensure you properly dispose of old oil and filters at a certified recycling center.
Why the Acura B1 Service Is Important
Ignoring your B1 service reminder can lead to reduced fuel efficiency, uneven tire wear, or potential mechanical issues. Completing this scheduled maintenance helps:
- Maintain peak engine performance
- Extend your Acura’s lifespan
- Preserve warranty coverage
- Retain resale value
Acura Models That Commonly Show the B1 Code
The B1 maintenance code applies to many Acura models, including:
- Acura MDX
- Acura RDX
- Acura TLX
- Acura ILX
- Acura Integra
- Acura RLX
Each model may have slightly different service intervals or oil requirements, so consult your Acura Maintenance Minder or owner’s manual.
Related Acura Service Codes
- A1 Service: Basic oil change + tire rotation
- B2 Service: Oil change + filter + cabin air filter replacement + more inspections
- B16 Service: B1 service plus differential fluid replacement
Final Thoughts
The Acura B1 service is a key part of keeping your vehicle in top shape. Whether you visit a dealership or handle it yourself, staying on top of your B1 maintenance ensures optimal performance, safety, and value for your Acura.