lexus
Lexus Secret Service Menu, Navigation System Diagnostic Check Mode, Fault Code Read Clear
By Viktor G · Certified Master Technician
Access the navigation system service and diagnostic mode on 2010-2015 Lexus RX350 and RX450h, including system checks, fault code reading, and memory clear functions.
Skill Level: Beginner
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Tools Needed
Tips & Tricks
- →The diagnostic mode can be entered using two different methods: the display button with remote touch controller, or the menu button combined with the headlight switch.
- →To exit diagnostic mode, simply turn the ignition off.
- →After completing a repair, use the memory clear function to clear navigation and subsystem codes, then recheck to confirm the repair was successful.
- →The hard drive integrity check takes approximately 30 seconds.
- →Fault codes can be viewed by subsystem — amplifier, audio, remote touch, etc. — by clicking on the individual boxes in the failure diagnosis screen.
- →Newer Lexus models may require a different procedure to enter diagnostic mode.