2009 Hyundai Elantra Owner's Manual - Page 250

What to do in an emergency 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. 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. 6 11