Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1313 (HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS)GENERAL PROCEDURESAUTOLOCK AND HORN CHIRP PROGRAMMINGAUTO-UNLOCK
2010 Mercury Mariner Hybrid, AWD
Autolock and Horn Chirp Programming: Auto-Unlock
2010 Mercury Mariner Hybrid, AWDSECTION Auto-Unlock
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This procedure must be completed within 30 seconds.
- Close all the doors.
- Turn the key to the OFF position.
- Turn the key to the RUN position.
- Press the UNLOCK button 3 times.
- Turn the key the OFF position.
- Press the UNLOCK button 3 times.
- Turn the key to the RUN position. The doors lock and unlock to confirm entry into program mode.
- Press the LOCK then the UNLOCK button once to toggle the auto-unlock feature on or off. The horn chirps once to confirm toggling of the auto-unlock if any doors, the hood or the luggage compartment are open and chirps twice if all openings are closed.
- Exit program mode by turning the key to the OFF position.
- Drive the vehicle to confirm auto-unlock status.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.