MechanMagic Push Button Start Key Fob Replacement for Chevrolet & Buick 2010-2021, Smart Proximity with Preinstalled Electronics

MechanMagic’s Push Button Start key fob replacement is a direct-fit Smart Proximity remote designed to restore keyless start and entry for compatible Chevrolet and Buick models from 2010–2021.

If your factory remote is lost, damaged, or simply worn out, this MechanMagic replacement fob delivers the same push-button start and proximity convenience without buying an entire OEM unit. It ships with the internal electronics and battery preinstalled, supports vehicles equipped with Push Start/PEPS systems, and comes with a self-programming guide so you can set it up quickly. Note that the metal key blade is uncut and must be cut by a locksmith; this remote does not work with vehicles that use only a conventional keyed ignition.

Which cars will this MechanMagic key fob work with?

This replacement fob is compatible with a broad list of Chevrolet and Buick models that came with factory proximity systems. It matches several FCC and part numbers used across those model years, making it a common fit for many popular GM vehicles.

• Compatible FCC IDs: OHT05918179, OHT01060512, P4O9MK74946931.
• Fits models: Chevrolet Camaro, Equinox, Cruze, Malibu, SS, Impala, Traverse; Buick Allure, Lacrosse, Regal, Verano, Cascada, Enclave.
• Model years covered: primarily 2010–2021 depending on the specific vehicle.
• Replaces part numbers: 13574863, 13504204, 13576143, 13500221, 13500226 and others listed.

How easy is it to install and program this replacement fob?

MechanMagic includes a clear self-programming instruction link with every order so many owners can program the remote themselves without dealer visits. The internal electronics and battery come installed; only the metal blade requires cutting. If you prefer, a local locksmith can both cut the blade and assist with programming.

• Self-programming instructions provided digitally with purchase.
• Battery and electronics preinstalled for immediate testing.
• Uncut metal key blade must be cut locally to match your vehicle key.
• Dealer or locksmith support recommended if programming fails.

What features and replacements does this fob include?

This keyless entry remote comes ready-to-use for push-button vehicles and acts as a full replacement for worn or missing factory fobs. It’s built to match factory functions such as lock, unlock, trunk release, and push-start proximity detection on supported models.

• Includes one remote with electronics and battery installed in the shell.
• Supports push-button start (PEPS) systems — not for regular keyed ignitions.
• Replaces a wide range of OEM part numbers and FCC IDs for GM vehicles.
• Compact, OEM-style housing designed to match factory feel and fit.

Who is this for? This MechanMagic replacement fob is ideal for owners of compatible Chevrolet or Buick models who need a cost-effective, reliable substitute for a broken or missing smart key. It suits DIYers comfortable with self-programming and local locksmith services for blade cutting, as well as anyone who wants a ready-to-install remote with OEM-style functions without paying dealer premiums. If you need push-button start functionality restored quickly and affordably, this fob provides a practical, supported solution.