Mercury Grand Marquis TPMS Relearn and Reset

• Inflate all tires to pressure indicated on placard
  
• Apply parking brake
  
• Turn ignition OFF
  
• Press and release regular brake pedal
  
• Cycle ignition from OFF to RUN 3 times ending in RUN
  
• Press and release regular brake pedal
  
• Turn ignition OFF
  
• Cycle ignition from OFF to RUN 3 more times ending in RUN. Horn will sound once
  
• Using a properly formatted TPMS scan tool, activate the sensors starting with the LF tire. Horn will sound once. Repeat this process moving clockwise to the RF,RR, and finishing with the LR
  
• Verify TPMS light is off