2010 Nissan Sentra Owner's Manual - Page 104

HORN The flashers will operate with the ignition switch placed in any position. Some state laws may prohibit the use of the hazard warning flasher switch while driving. VEHICLE DYNAMIC CONTROL (VDC) OFF SWITCH (if so equipped) WIC1324 WIC0534 To sound the horn, push the top portion of the steering wheel's center pad. WARNING Do not disassemble the horn. Doing so could affect proper operation of the supplemental front air bag system. Tampering with the supplemental front air bag system may result in serious personal injury. The vehicle should be driven with the Vehicle Dynamic Control (VDC) system on for most driving conditions. If the vehicle is stuck in mud or snow, the VDC system reduces the engine output to reduce wheel spin. The engine speed will be reduced even if the accelerator is depressed to the floor. If maximum engine power is needed to free a stuck vehicle, turn the VDC system off. To turn off the VDC system, push the VDC OFF indicator will come on. switch. The Push the VDC OFF switch again or restart the engine to turn on the system. See "Vehicle Dynamic Control (VDC) system" in the "Starting and driving" section. Instruments and controls 2-25