Smart Access System With Push-Button Start
WARNING: This page is about a different car, the 2009 Lexus IS 350 and 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
SMART ACCESS SYSTEM WITH PUSH-BUTTON START DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B1242 | Wireless Door Lock Tuner Circuit Malfunction |