ABS Brake Master Cylinder Date Code Insp. Instructions

1. The ABS brake master cylinder is located under the hood, at the driver's side rear corner of the engine compartment.





The master cylinder date code is the TOP code located on the front (forward) boss of the aluminum master cylinder, and consists of 4 numbers and a letter (the letter is not important for this service). The first number indicates the calendar year built and the next three numbers indicate the day of the year. A master cylinder having a date code of 3309 or earlier must be replaced (Figure 1).

2. If the master cylinder date code is 3310 or later, no further action is required. Please mark "INSPECTED -- OK" on the pre-addressed Vehicle Disposition Form portion of the enclosed owner notification form and put it in the mail.

If the date code is 3309 or earlier, make an appointment with your dealer to have the master cylinder replaced.