2013 Hyundai Sonata Owner's Manual - Page 144

Features of your vehicle Low brake vacuum pressure warning (2.0 TGDI engine only, if equipped) If the warning light remains on, it may indicate that the brake vacuum pump has any problem. Therefore you should avoid high speed driving or sudden stop, and you should depress the brake pedal deeper and harder than usual in braking. Make sure to have the brake system checked and repaired by an authorized HYUNDAI dealer. Low tire pressure telltale WARNING - Safe stopping • The TPMS cannot alert you to severe and sudden tire damage caused by external factors. • If you feel any vehicle instability, immediately take your foot off the accelerator, apply the brakes gradually and with light force, and slowly move to a safe position off the road. WARNING • Continuous braking while driving on steep or long downhill may cause to descend the vacuum level in brake booster for a time and turn on the warning light. In this case, shift down the transmission. If the warning light illuminate continuously, stop the vehicle in the safe location and wait until the warning light goes off. • Driving the vehicle with a warning light on is dangerous. If the brake warning light remains on, have the brakes checked and repaired immediately by an authorized HYUNDAI dealer. The low tire pressure telltale illuminates when one or more of your tires is significantly underinflated. The low tire pressure telltale will illuminate after it blinks for approximately one minute when there is a problem with the Tire Pressure Monitoring System. If this occurs, have the system checked by an authorized HYUNDAI dealer as soon as possible. For details, refer to the TPMS on chapter 6. WARNING - Low tire pressure Significantly low tire pressure makes the vehicle unstable and can contribute to loss of vehicle control and increased braking distances. Continued driving on tires with low pressure will cause the tires to overheat and fail. 4 63