2013 Hyundai Sonata Owner's Manual - Page 305

What to do in an emergency You may not be able identify a low tire by simply looking at it. Always use a good quality tire pressure gauge to measure the tire's inflation pressure. Please note that a tire that is hot (from being driven) will have a higher pressure measurement than a tire that is cold. A cold tire means the vehicle has been sitting for 3 hours and driven for less than 1 mile (1.6 km) in that 3 hour period. Allow the tire to cool before measuring the inflation pressure. Always be sure the tire is cold before inflating to the recommended pressure. WARNING - TPMS • The TPMS cannot alert you to severe and sudden tire damage caused by external factors such as nails or road debris. • 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. This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1.This device may not cause harmful interference, and 2.This device must accept any interference received, including interference that may cause undesired operation. WARNING Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. WARNING - Protecting TPMS Tampering with, modifying, or disabling the Tire Pressure Monitoring System (TPMS) components may interfere with the system's ability to warn the driver of low tire pressure conditions and/or TPMS malfunctions. Tampering with, modifying, or disabling the Tire Pressure Monitoring System (TPMS) components may void the warranty for that portion of the vehicle. CAUTION Do not use any tire sealant if your vehicle is equipped with a Tire Pressure Monitoring System. The liquid sealant can damage the tire pressure sensors. 6 11