Toyota 4Runner Key Services | S.A. Locksmith San Antonio

Toyota 4Runner Locksmith San Antonio

S.A. Locksmith & Security provides professional Toyota 4Runner key and key fob replacement in San Antonio, Texas and surrounding areas including Alamo Heights, Stone Oak, The Dominion, Helotes, Converse, Schertz, Cibolo, New Braunfels, and Boerne. As a licensed and insured mobile locksmith, we come directly to your location — home, work, or roadside — for fast, same-day service. Our technicians use Toyota Techstream and professional immobilizer programming tools to cut and program your Toyota 4Runner key at a fraction of dealership pricing. Available 24/7 for emergencies. Call (210) 348-3677 for a free quote.

Licensed (LIC# B18010), insured, and BBB A+ rated, S.A. Locksmith & Security has been serving San Antonio since 2009. We back all work with a 90-day warranty on parts and labor plus manufacturer warranty on all hardware. Our no-damage guarantee means your vehicle is always safe in our hands. With response times under 20 minutes throughout San Antonio, we’re your fastest alternative to the dealership — at a fraction of the cost.

Toyota 4Runner Key Replacement San Antonio

S.A. Locksmith & Security provides professional Toyota 4Runner key replacement, transponder programming, smart key services, and emergency lockout assistance in San Antonio. The Toyota 4Runner (1996-2025) uses 2.7L I4 (3RZ-FE/2TR-FE) / 3.4L V6 (5VZ-FE) / 4.0L V6 (1GR-FE) / 4.7L V8 (2UZ-FE) / 2.4L Turbo I4 (T24A-FTS) engines with Denso TCCS EFI (3RZ/5VZ) / Denso VVT-i EFI (1GR-FE/2UZ-FE) / Denso D-4ST Dynamic Force (T24A-FTS) engine management. Our certified automotive locksmiths have the tools and expertise to cut, program, and replace keys for every Toyota 4Runner generation.

Toyota 4Runner Technical Specifications

Year Range: 1996-2025
Engine: 2.7L I4 (3RZ-FE/2TR-FE) / 3.4L V6 (5VZ-FE) / 4.0L V6 (1GR-FE) / 4.7L V8 (2UZ-FE) / 2.4L Turbo I4 (T24A-FTS)
Fuel: Petrol
ECU: Denso TCCS EFI (3RZ/5VZ) / Denso VVT-i EFI (1GR-FE/2UZ-FE) / Denso D-4ST Dynamic Force (T24A-FTS)
Immobilizer: Engine Immobilizer System (4C 1999-2003 / 4D-67 2003-2010 / G-chip DST80 2010-2024 / H-chip AES 2025+)
Key Type: Transponder Key TOY43 (1999-2009) / Smart Key Fob with TOY43 Emergency Blade (2010+)
Key Blank: TOY43 (ILCO: TOY43AT4 / TOY44D-PT / TOY44G-PT)
Transponder: Texas 4C (1999-2003) / Texas Crypto 4D-67 (2003-2010) / G-chip DST80 (2010+)
Start Method: Traditional Key (1996-2009) / Smart Key Push-Button Start (2010+)

Toyota 4Runner Key & Fob Services

Toyota 4Runner ECU & Module Services

S.A. Locksmith & Security offers ECU and immobilizer module services for the Toyota 4Runner. This model uses Denso TCCS EFI (3RZ/5VZ) / Denso VVT-i EFI (1GR-FE/2UZ-FE) / Denso D-4ST Dynamic Force (T24A-FTS) engine management with Engine Immobilizer System (4C 1999-2003 / 4D-67 2003-2010 / G-chip DST80 2010-2024 / H-chip AES 2025+) security.

Key Reflash Service: The Toyota 4Runner uses a 4C/4D transponder immobilizer system that may require an ECU key reflash when all keys are lost, the ECU is replaced, or the immobilizer loses its key registration. S.A. Locksmith & Security performs on-site Toyota 4Runner key reflash and immobilizer recovery throughout San Antonio — no dealer visit required.

Why Choose S.A. Locksmith for Toyota 4Runner Keys

S.A. Locksmith & Security is San Antonio’s trusted Toyota key specialist. We carry genuine-quality TOY43, TOY44, and smart key fob blanks in stock for immediate service. Our certified technicians use professional-grade key programming tools to handle all Toyota immobilizer generations — from early 4C transponders to the latest DST-AES 128-bit smart key systems.

We offer mobile service throughout San Antonio, so there’s no need to tow your Toyota 4Runner to the dealer. We come to you — fast, reliable, and affordable.

Our No-Damage Guarantee: Unlike towing your vehicle to a dealership, our mobile locksmiths use professional-grade, non-destructive tools and techniques to service your vehicle on-site. We guarantee no damage to your vehicle during any lockout, key replacement, or programming service. With response times under 20 minutes throughout the San Antonio area and 24/7 emergency availability, we get you back on the road fast — backed by our 90-day warranty on parts and labor.

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Toyota 4Runner Key Replacement FAQ

How much does a Toyota 4Runner key replacement cost?

Toyota 4Runner key replacement costs depend on the year and key type. Traditional transponder keys typically range from $150-$300, while smart key fobs range from $250-$500. The Texas 4C (1999-2003) / Texas Crypto 4D-67 (2003-2010) / G-chip DST80 (2010+) transponder system used in your 4Runner determines the exact cost. Contact S.A. Locksmith & Security at (210) 348-3677 for an exact quote.

Can you program a Toyota 4Runner key without the dealer?

Yes! S.A. Locksmith & Security has professional Toyota key programming equipment to handle all 4Runner model years. We can program transponder keys and smart key fobs on-site without a dealer visit. Our mobile service comes to your location in San Antonio.

What type of key does my Toyota 4Runner use?

The Toyota 4Runner (1996-2025) uses Transponder Key TOY43 (1999-2009) / Smart Key Fob with TOY43 Emergency Blade (2010+). The key blank is TOY43 with Texas 4C (1999-2003) / Texas Crypto 4D-67 (2003-2010) / G-chip DST80 (2010+) transponder technology. The start method is Traditional Key (1996-2009) / Smart Key Push-Button Start (2010+).

Do you handle Toyota 4Runner all-keys-lost situations?

Absolutely. We specialize in all-keys-lost situations for the Toyota 4Runner. Using professional diagnostic tools, we can read the immobilizer data, cut a new key, and program it from scratch. This service is available 24/7 for emergencies.

How long does Toyota 4Runner key replacement take?

Most Toyota 4Runner key replacements take 30-60 minutes on-site. Traditional transponder keys are typically faster (20-30 min), while smart key fobs may take slightly longer for programming. We carry Toyota key blanks in stock for same-day service.

Request a Locksmith

S.A. Locksmith & Security is a full-service, 24/7 locksmith located in San Antonio serving the greater SA area. No project is too big or too small.

📞 (210) 348-3677

We Accept All Major Credit Cards

Note: Pricing and availability may vary. Smart key programming requires professional equipment. Some services may require vehicle VIN verification. All work is backed by our 90-day warranty on parts and labor and manufacturer warranty on hardware. S.A. Locksmith & Security — Licensed (LIC# B18010), Insured, BBB Accredited (A+ Rating). 11401 West Ave, San Antonio, TX 78213. All brand names, logos, and trademarks are the property of their respective owners. S.A. Locksmith & Security is an independent locksmith service provider and is not affiliated with any automobile manufacturer or dealership. 10% Military & Veteran Discount — show valid military ID at time of service.

Need Toyota 4Runner Key Replacement in San Antonio?

S.A. Locksmith & Security provides professional Toyota 4Runner key replacement, transponder programming, smart key service, and emergency lockout. Fast, reliable, affordable — we come to you.