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Mercury Key Replacement DFW
If you’ve lost your Mercury car keys in Dallas or Fort Worth, DFW Keys 4 Cars is ready to respond quickly and professionally. Whether you drive a Mercury Grand Marquis, Mercury Mountaineer, Mercury Milan, or Mercury Mariner, we provide complete Mercury lost key and replacement services throughout the DFW area. Our mobile locksmiths travel to your home, office, or roadside location to cut and program new transponder keys or remote fobs on-site. Even if all keys are lost, we can generate and program a new key the same day, restoring your vehicle’s security and getting you back on the road without the expense of dealership towing or long service delays.
**About Mercury Vehicles**
Mercury was an American automobile brand produced by Ford Motor Company from 1938 until 2011. Positioned between Ford and Lincoln, Mercury offered vehicles that combined comfort, style, and affordability. Over the years, Mercury became known for popular models such as the Mercury Grand Marquis, Mercury Mountaineer, and Mercury Cougar. Many Mercury vehicles shared platforms and engine technology with Ford models but featured upgraded interiors and distinct styling. Although the brand was discontinued in 2011, Mercury cars remain on the road today, valued for their durability, smooth ride quality, and reliable performance.
mercury keys Experts DFW Area
Mercury vehicles use high-security transponder keys and remote key fobs designed to work with the vehicle’s immobilizer system. Most later models, such as the Mercury Grand Marquis and Mercury Mountaineer, require electronic key programming in addition to cutting. Without proper programming, the engine will not start. If a Mercury key is lost or damaged, professional key replacement and reprogramming are necessary to restore full vehicle security and functionality.
Here’s a list of Mercury models we cover (1996–2011 production years):
Mercury Grand Marquis
Mercury Mountaineer
Mercury Milan
Mercury Mariner
Mercury Sable
Mercury Cougar
Mercury Mystique
Mercury Villager
Mercury Montego
Mercury Monterey
🔧 Mercury Key Types, Model Years & Security
Mercury key technology has changed across the generations. Find your model’s key type, chip and blade below — call (214) 717-6398 and we’ll confirm by VIN before we roll out.
| Model | Years | Key Type | Transponder / Immobilizer | Blade |
|---|---|---|---|---|
| Topaz | 1990–1994 | Mechanical (pre-PATS) | None | H50 / H51 — confirm by VIN |
| Mystique | 1995–2000 | Transponder (PATS) | Texas 4C / ID4C | H72 / H75 |
| Villager (= Nissan Quest) | 1999–2002 | Transponder (Nissan NATS) | Philips ID41 | X264 / NSN14 (Nissan) |
| Cougar | 1999–2002 | Transponder (PATS) | Texas 4C / ID4C | H73 |
| Sable | 1996–1999 | Transponder (PATS) | Texas 4C / ID4C | H72 / H75 |
| Sable | 2000–2005 | Transponder (PATS) | Texas 4D63 / ID63 | H72 / H75 (H84/H92) |
| Sable | 2008–2009 | Transponder (PATS) | Texas 4D63 (80-bit) | H75 (H92/H84) |
| Grand Marquis | 1998–2002 | Transponder (PATS) | Texas 4C / ID4C | H72 / H75 |
| Grand Marquis | 2003–2011 | Transponder (PATS) | Texas 4D63 (80-bit) | H75 (H92/H84) |
| Marauder | 2003–2004 | Transponder (PATS) | Texas 4D63 (80-bit) | H75 (H92/H84) |
| Mountaineer | 1997–2001 | Transponder (PATS) | Texas 4C / ID4C | H72 / H75 |
| Mountaineer | 2002–2010 | Transponder (PATS) | Texas 4D63 / ID63 | H72 / H75 (H84/H92) |
| Monterey | 2004–2007 | Transponder (PATS) | Texas 4D63 (80-bit) | H75 (H92/H84) |
| Montego | 2005–2007 | Transponder (PATS) | Texas 4D63 (80-bit) | H75 (H92/H84) |
| Milan (= Ford Fusion) | 2006–2011 | Transponder (PATS) — IA optional | Texas 4D63 (80-bit/DST80) | H92 / H84 / HU101 |
| Mariner (= Ford Escape) | 2005–2011 | Transponder (PATS) — IA optional | Texas 4D63 (80-bit/DST80) | H92 / HU101 |
Mercury shares its remote/transponder catalog with Ford & Lincoln. Verified FCC: CWTWB1U345 (Grand Marquis 2006–2011); CWTWB1U331 (Grand Marquis ~2006); CWTWB1U793 (Sable 2000–2009, 80-bit 4D63 remote-head, H75); CWTWB1U311 (4C-era RKE fob ~1998–2004). Same FCC spans multiple makes/years — confirm by VIN. NO Intelligent Access smart-key FCC confirmed for any Mercury (M3N5WY8406 = Ford Taurus/Lincoln, NOT Milan/Mariner — excluded). OUTLIERS: Villager = Nissan Quest rebadge (Nissan NATS ID41, X264/NSN14, NOT Ford); Cougar uses H73 (not H72); Milan = Fusion, Mariner = Escape (match the Ford by year; 2010–2011 IA-vs-blade & H75-vs-HU101 by trim). Topaz predates PATS (mechanical). Chip: 4C/ID4C → 4D63 80-bit/DST80. Confirm by VIN. Sources: Transpondery, UHS Hardware, fccid.io.
📍 Mercury Key Service by City, ZIP & County
We’re a fully mobile service, so we come to you anywhere in the Dallas–Fort Worth metroplex. Some of the cities, counties and ZIP codes where we cut and program Mercury keys:
- Dallas — Dallas County — 75201, 75204, 75206, 75214, 75219, 75230
- Plano — Collin County — 75023, 75024, 75025, 75074, 75075, 75093
- Frisco — Collin & Denton County — 75033, 75034, 75035, 75036
- Fort Worth — Tarrant County — 76102, 76107, 76109, 76116, 76132
- Arlington — Tarrant County — 76001, 76010, 76013, 76015, 76017
- Irving — Dallas County — 75038, 75039, 75060, 75061, 75063
- McKinney — Collin County — 75069, 75070, 75071, 75072
Don’t see your ZIP? We cover every community across North Texas — call (214) 717-6398 and we’ll bring the Mercury key shop to your driveway.