Common Acura service codes include letter A codes such as A, A1, A2, A3 A4, A5 and A6 and letter B codes such as B, B1, B2, B3, B4, B5 and B6. The Acura maintenance minder displays the codes to alert the driver when the car is due for service.
Service code A alerts the driver that the vehicle is due for a change of engine oil and a multi-point inspection. Code B requires a change of engine oil and filter as well as a multi-point inspection. Each of the numbers one to six codes requires a specific action and occur with either a letter A or B code. Code one alerts the driver to rotate tires and check tire pressure and condition. Code two signals the driver to replace the engine and cabin air filters.
Code three requires replacing transmission fluid and transferring case fluid. Code four gives an alert to replace spark plugs and service the timing belt. Code five alerts the driver to replace engine coolant. Code six requires rear differential fluid service. A service code A1, for example, requires a change of engine oil, rotation of the tires and checking tire pressure and condition.
The Acura maintenance minder also gives alerts about the vehicle's oil life. It displays a message that service is due soon, that service is due now or that service is past due, which mean that oil life has reached 15 percent, five percent or zero percent respectively.