KUTTOLE Ignition Assembly Replacement for Chevy/GMC Trucks — Lock Cylinder with Passlock Sensor, Starter Switch (OE 924-713/US-312

If your steering column is stuck, the key won’t turn, or the vehicle won’t register the ignition signal, this KUTTOLE Ignition Assembly provides the complete mechanical and electrical replacement needed for many Chevy, GMC, Cadillac, Buick and Hummer models (OE references 924-713, 924-715, US-312L). Built from durable metal components and a factory-style passlock sensor, the unit aims to reestablish proper key rotation, starter engagement and theft-deterrent communication without modifying your vehicle.

How does this assembly fix a frozen steering column or a key that won’t turn?

The assembly replaces the worn lock cylinder and its housing so the mechanical tumblers, spring action and catch surfaces are like-new again. Installing the new unit eliminates internal wear or broken retaining parts that cause jammed columns and unresponsive keys.

• Full mechanical replacement: lock cylinder plus housing restores smooth key rotation.
• Includes starter switch to re-enable correct starter circuit engagement.
• Metal construction resists premature wear compared with degraded OEM parts.

Will this unit resolve passlock or theft-deterrent warning lights?

Yes — the KUTTOLE assembly integrates a passlock sensor designed to reestablish communication between the ignition lock cylinder and the vehicle’s theft-deterrent module. Replacing a failed sensor or corroded connection often stops flashing security lights and allows the vehicle to recognize the correct key signal again.

• Built-in passlock sensor for theft-deterrent systems.
• Restores communication between cylinder and vehicle module.
• Direct-fit electrical connector mirrors OEM wiring for plug-and-play replacement.

Which vehicles and part numbers is this compatible with?

This KUTTOLE Ignition Assembly is manufactured to fit a wide range of GM vehicles across model years commonly affected by ignition wear. It replaces OE parts US-312L, 924-713 and 924-715 and covers many Chevy, GMC, Cadillac, Buick and Hummer applications—check your vehicle’s part number before ordering.

• Chevy: Avalanche, Silverado (1500/2500/3500), Suburban, Tahoe, Trailblazer, SSR, S10, Pickup series (2000–2009 ranges).
• GMC: Sierra, Envoy, Yukon, Jimmy, Sonoma models (2000–2009 ranges).
• Cadillac, Buick, Hummer, Oldsmobile: Escalade EXT/ESV (2002–2006), Rainier (2004–2007), H2 (2003–2007), Bravada (2000–2004).

What should I know about installation and post-install checks?

Installation is a like-for-like swap of the lock cylinder, housing and starter switch; many DIYers can complete the job with common tools, but some column disassembly is required. The housing includes a small black plastic portion with an access hole — if needed, a thin pin is used to retract the lock during removal or installation.

• Follow vehicle-specific column disassembly guides to avoid damage.
• Use a small needle or pin in the tiny access hole to retract the black component when directed.
• After fitment, verify key rotation, starter engagement and that security lights stop flashing.

Who is this for: drivers and technicians working on GM trucks and SUVs from the early 2000s who need a direct replacement for a worn or failed ignition lock assembly. KUTTOLE's kit suits owners experiencing jammed steering columns, ignition switch failure or passlock related immobilizer issues who want an OEM-form replacement that restores mechanical function and theft-deterrent communication.