If so they should state as "Require" Maintenance. Yes, oil change, filter change, all recommend changes should do it but like the 16,000km recommend maintenace, the job mostly just inspection. Really for $440+tax for doing inspection + oil & filter change is way too expensive.. If that really their right to voild the warranty, oh well I guess my next new car won't be Lexus, is just to high to maintain the car then.. just the Labor cost start at $100 per hour.