2013 Hyundai Sonata Owner's Manual - Page 270

Driving your vehicle ■ ESC indicator light CAUTION Driving with varying tire or wheel sizes may cause the ESC system to malfunction. When replacing tires, make sure they are the same size as your original tires. ■ ESC OFF indicator light WARNING Indicator light When ignition switch is turned to ON, the indicator light illuminates, then goes off if the ESC system is operating normally. The ESC indicator light blinks whenever ESC is operating or illuminates when ESC fails to operate. The ESC OFF indicator light comes on when the ESC is turned off with the button. The Electronic Stability Control system is only a driving aid; use precautions for safe driving by slowing down on curved, snowy, or icy roads. Drive slowly and don't attempt to accelerate whenever the ESC indicator light is blinking, or when the road surface is slippery. 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. 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. • When operating the vehicle on a dynamometer, ensure that the ESC is turned off (ESC OFF light illuminated). • Turning the ESC off does not affect ABS or brake system operation. ✽ NOTICE 5 28