Warning Devices

2010 Mercury Mariner Hybrid, AWDSECTION Warning Devices
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

The instrument cluster controls the warning chime function. The warning chime sounds to remind the driver:

  • to turn the headlamps off when exiting the vehicle.
  • remove the ignition key when exiting the vehicle.
  • close the doors after starting the vehicle.
  • to fasten the safety belt after starting the vehicle.

The instrument cluster uses various inputs to determine when to sound the warning chime. The warning chime sounds if the headlamps have been left on with the ignition switch in the OFF position and the driver door is ajar, the key is in the ignition in the OFF position and the driver door is ajar, a door is ajar while the ignition switch is in the RUN position, the safety belts have not been fastened and the ignition switch is in the RUN position, or if the air bag warning indicator is inoperative when there are diagnostic trouble codes (DTCs) present.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.