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CADILLAC B115 PK3+ TRANSPONDER KEY (2004-2006)
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Professional-grade aftermarket transponder key for Cadillac vehicles. This key features the B115 keyway and is equipped with a high-quality 48 transponder chip compatible with the PK3+ (Circle +) security system. It provides a cost-effective, secure replacement for Cadillac owners and automotive professionals.
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🔧 Technical Specifications
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Chip Type 48 (PK3+ / Circle +)
Keyway B115
Frequency N/A (Transponder Only)
Blade Material Nickel Plated Brass
Condition New | Aftermarket
Logo No Logo
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✅ Compatibility Checklist
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✅ Cadillac CTS (2004-2006)
✅ Cadillac SRX (2004-2006)
✅ Cadillac STS (2005-2006)
✅ Replaces OEM PK3+ Keys
⚠️ IMPORTANT: Verify your original key has the "PK3+" or a "Circle +" stamped on the metal blade before ordering.
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🔑 Programming Instructions
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1. This key is NOT self-programmable.
2. The 48 transponder chip must be programmed using a diagnostic tool.
3. Take the key to a professional automotive locksmith or Cadillac dealership.
4. The technician will cut the B115 blade and program the chip to your vehicle's immobilizer.
5. Test the key in the ignition to verify engine start and security light behavior.
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📦 What's Included
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• 1× Cadillac B115 PK3+ Transponder Key
• 1× 48 Transponder Chip (Pre-installed)
• 1× Uncut B115 Key Blade
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🚚 Shipping & Warranty
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✅ Free shipping on orders over $100
✅ Ships within 1–3 business days
✅ 1-Year Free Return Policy
✅ In Stock — Ready to Ship
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❓ Frequently Asked Questions (FAQ)
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Q1: Does this key have the Cadillac logo?
A: No, this is a high-quality aftermarket key and does not feature any brand logos.
Q2: What is the difference between PK3 and PK3+?
A: PK3 and PK3+ use different transponder chips (Megamos 13 vs Megamos 48). They are not interchangeable. This B115 key is for the PK3+ system. Check your original blade for the '+' symbol.
Q3: Can a hardware store cut this key?
A: While they may be able to cut the blade, most hardware stores cannot program the 48 transponder chip. We recommend visiting an automotive locksmith for complete service.
Q4: Is the chip already inside?
A: Yes, a premium 48 chip is pre-installed inside the head of the key.
Q5: Will this key work for a 2003 Cadillac?
A: Most 2003 Cadillac models used the PK3 (not PK3+) system. Please check your blade stamp. If it just says 'PK3', you need a different chip type.
Q6: What happens if the key doesn't work?
A: We offer a 1-year free return policy. If the key is defective or incompatible (verified before cutting), contact us for a full refund or replacement.
Q7: Does this key include remote buttons?
A: No, this is a transponder-only key. It will start the engine and lock/unlock the doors manually, but it does not have remote entry functions.
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🏷️ Certifications
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🔧 ISO 9001 Certified | 🔒 1-Year Warranty | ✅ 48 Chip Verified
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[SKU: Chipkey-B115B] | Keyway: B115
Compatible: 2004-2006 Cadillac Models
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