2011 Hyundai Tucson Owner's Manual - Page 233

Driving your vehicle ESC OFF usage When driving • ESC should be turned on for daily driving whenever possible. • To turn ESC off while driving, press the ESC OFF button while driving on a flat road surface. Vehicle stability management (VSM) (if equipped) This system provides further enhancements to vehicle stability and steering responses when a vehicle is driving on a slippery road or a vehicle detected changes in coefficient of friction between right wheels and left wheels when braking. VSM operation off If you press the ESC OFF button to turn off the ESC, the VSM will also cancel and the ESC OFF indicator light ( ) illuminates. To turn on the VSM, press the button again. The ESC OFF indicator light goes out. Malfunction indicator The VSM can be deactivated even if you don't cancel the VSM operation by pressing the ESC OFF button. It indicates that a malfunction has been detected somewhere in the Electric Power Steering system or VSM system. If the ESC indicator light ( ) or EPS warning light remains on, take your vehicle to an authorized HYUNDAI dealer and have the system checked. WARNING Never press the ESC OFF button while ESC is operating (ESC indicator light blinks). If ESC is turned off while ESC is operating, the vehicle may slip out of control. ✽ NOTICE • When operating the vehicle on a dynamometer, ensure that the ESC is turned off (ESC OFF light illuminated). If the ESC is left on, it may prevent the vehicle speed from increasing, and result in false diagnosis. • Turning the ESC off does not affect ABS or brake system operation. VSM operation When the VSM is in operation, ESC indicator light ( ) blinks. When the vehicle stability management is operating properly, you can feel a slight pulsation in the vehicle. This is only the effect of brake control and indicates nothing unusual. The VSM does not operate when: • Driving on bank road such as gradient or incline • Driving rearward • ESC OFF indicator light ( ) remains on the instrument cluster • EPS indicator light remains on the instrument cluster ✽ NOTICE • The VSM is designed to function above approximately 15 km/h (9 mph) on curves. • The VSM is designed to function above approximately 30 km/h (18 mph) when a vehicle is braking on a split-mu road. The split-mu road is made of surfaces which have different friction forces. 5 32