How to remove and replace the keyless entry transmitter and Key Fob for the tailgate latch remote control on Mercury Mountaineer?

The procedure to change the keyless entry transmitter starts by opening and supporting the tailgate. Start by removing 7 bolts combined with 4 pin-type retainers and finally take out the tailgate access panel. When installation time arrives lock the bolts at 5 Nm (44 lb-in). Open the clips which allows two tailgate latch actuating rods to escape their position on the remote control followed by releasing their corresponding locators from the tailgate surface. When you install the tailgate remote control, fasten the 2 nuts with torque up to 9 Nm (80 lb-in). The final step involves performing the opposite actions which were used during removal.

OEM Mercury Mountaineer Key Fob

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Mercury Mountaineer Transmitter Part Number: 8L3Z-15K601-B
$65.53 MSRP: $75.00
You Save: $9.47 (13%)
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Product Specifications
- Other Name: Remote Control System; Keyless Entry Transmitter; Transceiver
- Replaces: 2L3Z-15K601-AB, 8L3Z-15K601-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Remote Control Part Number: 8S4Z-15K601-A
$62.61 MSRP: $75.00
You Save: $12.39 (17%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Remote Control System; Keyless Entry Transmitter; Transmitter; Transceiver
- Manufacturer Note: 4 Buttons
- Replaces: 2S4Z-15K601-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Transmitter Part Number: F6UZ-15K601-AB
Product Specifications
- Other Name: Remote Control System
- Replaces: F6UZ-15K601-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS
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Mercury Mountaineer Transmitter Part Number: F6UZ-15K601-BB
Product Specifications
- Other Name: Remote Control System
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS

Mercury Mountaineer Key Fob

OEM Key Fob boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Key Fob with long life and a perfect fit. Come to our website and find genuine Mercury Mountaineer parts. We keep a wide inventory of OEM Mountaineer parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Key Fob of Mercury Mountaineer provides essential keyless entry function for the user. When a button is pressed on the fob, it sends a coded radio signal to the receiver in the vehicle. The Key Fob is an electronic device in a small black casing that contains a small chip, short-range transmitter, and battery. These components work as a tiny radio transmitting the code every time a command is issued. The Mountaineer's rolling code system is programmed to change the sequence of the codes when the user activates either the lock, unlock, or horn button. This feature ensures that code captures are more difficult to execute without authorization. Each Mercury unit has its own programmed code combination, which is matched to that specific Mercury vehicle, meaning a driver's remote will not unintentionally unlock a Mountaineer parked nearby. The range tends to be between 15 and 60 feet, allowing the driver to prepare the cabin while approaching the front door. The Key Fob communicates only with its paired Mercury computer, so other remotes can't interfere. A Key Fob battery is considered to be healthy for about three to four years of use. If the buttons are not responding to presses or there is visible damage, then it means you need a replacement. Routine care of the Key Fob helps in providing reliable access to your Mountaineer.

Mercury Mountaineer Key Fob Parts and Q&A

Remote Control
8S4Z-15K601-A
Q: How to remove and replace the keyless entry transmitter and Key Fob for the tailgate latch remote control on Mercury Mountaineer?
A:
The procedure to change the keyless entry transmitter starts by opening and supporting the tailgate. Start by removing 7 bolts combined with 4 pin-type retainers and finally take out the tailgate access panel. When installation time arrives lock the bolts at 5 Nm (44 lb-in). Open the clips which allows two tailgate latch actuating rods to escape their position on the remote control followed by releasing their corresponding locators from the tailgate surface. When you install the tailgate remote control, fasten the 2 nuts with torque up to 9 Nm (80 lb-in). The final step involves performing the opposite actions which were used during removal.