GM 25850415 Immobilizer Transceiver PASS-Key 3+ Cadillac SRX STS CTS 07-09

Genuine GM OEM Immobilizer Transceiver – Tested & Ready Restore your Cadillac’s factory anti‑theft protection with this OEM PASS‑Key 3+ / PATS immobilizer transceiver (GM part number 25850415). This module reads the chip in your ignition key and communicates with the vehicle’s security system — a must‑replace if you’re seeing “Service Theft System” messages or experiencing no‑start issues due to a failed transceiver.

Fitment:

• 2007–2009 Cadillac SRX – Base, V6, V8 (3.6L V6, 4.6L V8)

• 2007–2009 Cadillac STS – Base, V, Platinum (3.6L V6, 4.4L V8, 4.6L V8)

• 2007–2009 Cadillac CTS – Base (2.8L V6, 3.6L V6)

• May also fit some 2006 or 2010 SRX/STS/CTS — verify with VIN

• Interchangeable P/N: 25850415, 10384710

• For vehicles equipped with PASS‑Key 3+ / PATS anti‑theft system

Condition:

• Used OEM part in good working order

• Fully tested for signal integrity and function

• Cleaned and ready for installation

• Minor cosmetic wear possible (light scuffs) — see photos

Includes:

• (1) OEM Immobilizer Transceiver – GM P/N 25850415

Installation Notes:

• Professional installation recommended

• May require programming or relearn procedure by a dealer or qualified locksmith

Shipping & Returns

• Free Same‑Day Shipping on orders before 3PM EST (Mon–Fri)

• 1‑Business‑Day handling

• 30‑Day returns (buyer pays return shipping)

Why Buy OEM from HubesHub?

• 100% Genuine GM parts — no aftermarket guesswork

• Real photos of the actual item you’ll receive

• Thoroughly inspected and tested before shipping

• Fast, reliable shipping from a Top Rated Plus seller

📌 Tip for buyers: If your Cadillac won’t start and shows “Service Theft System,” this is often the culprit. Verify your VIN with a dealer to confirm fitment before purchase.