How to program keyless entry transmitters on 2003 Mercury Grand Marquis?

In order to program keyless entry transmitters; make sure that the anti-theft system is turned off. Turn the ignition switch four times in three seconds, the last RUN. To test programming, press a button on the remote. Keep repeating the process with other remotes and wait 7.5 seconds to get out of program mode.

OEM 2003 Mercury Grand Marquis Transmitter

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2003 Mercury Grand Marquis Transceiver Part Number: 3W7Z-15K601-AA
$62.61 MSRP: $75.00
You Save: $12.39 (17%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Remote Control System; Keyless Entry Transmitter
- Replaces: F8AZ-15K601-AA
- Base No.: 15K601
- Item Weight: 0.30 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3W7Z-15K601-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Mercury Grand Marquis Submodels:
- GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS

2003 Mercury Grand Marquis Transmitter

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2003 Mercury Grand Marquis Transmitter Parts Q&A

Q: How to program keyless entry transmitters on 2003 Mercury Grand Marquis?
A: In order to program keyless entry transmitters; make sure that the anti-theft system is turned off. Turn the ignition switch four times in three seconds, the last RUN. To test programming, press a button on the remote. Keep repeating the process with other remotes and wait 7.5 seconds to get out of program mode.