MechanMagic Key Fob Replacement Pair for GM Equinox/Terrain/Sonic/Spark/Trax – 2 Remotes with Batteries & Circuit Boards

Lost or damaged remotes shouldn’t leave you stranded. This MechanMagic keyless entry replacement works with a long list of Chevrolet, GMC and Buick vehicles and matches original button layout and electronics so it behaves like the factory remote once programmed. It ships as a pair, includes batteries and the circuit board, and requires a local locksmith to cut the uncut mechanical blade and basic programming steps that we provide.

Which vehicles and part numbers will this key fob work with?

This remote is designed for a broad range of GM compact models across multiple years. It’s compatible with the OEM part numbers listed and covers the most common model-year combinations for Equinox, Terrain, Encore, Sonic, Spark and Trax.

• Fits Chevrolet Equinox 2010–2019 and Sonic 2012–2017
• Fits Chevrolet Spark 2016–2017 and Trax 2015–2018
• Fits GMC Terrain 2010–2021 and Buick Encore 2014–2018
• Replaces part numbers 20873621 and 20873623 and matches FCC IDs in product details

How do I prepare and program the replacement remote?

The fob ships with electronics and a battery installed, but the metal key blade is uncut. You’ll need a local locksmith or hardware store to cut the blade to match your key. We include step-by-step self-programming instructions to sync the remote to your vehicle if your model supports user programming.

• Uncut blade requires cutting by a locksmith or key service
• Battery and circuit board preinstalled to test button functions immediately
• Self-programming guide provided with purchase for compatible vehicles
• Dealer programming may be required for some vehicle years or features

What does the package include and how reliable is it?

Each order contains two fully assembled key fobs with electronics and battery installed so you can replace both remotes or keep one as a backup. MechanMagic builds these housings to match factory ergonomics and button placement so the remote feels familiar and performs reliably after programming.

• Includes 2 keyless entry remotes ready for cutting and programming
• Preinstalled batteries and electronics for instant testing
• Durable shell and buttons modeled on original equipment
• Clear compatibility and FCC ID listing to confirm fit

Will this remote support all features my original one had?

The replacement replicates standard keyless entry functions (lock, unlock, panic, remote trunk if applicable) in models supported by this part number. Advanced features tied to vehicle-specific modules or manufacturer-only programming might need dealer intervention to enable.

• Restores primary remote functions for compatible vehicles
• Some advanced or security-tied features may need dealer setup
• Check vehicle fitment and FCC ID before purchase to ensure full feature parity

Who this is for: This MechanMagic replacement is aimed at owners of Chevrolet Equinox, Sonic, Spark, Trax, GMC Terrain and Buick Encore models who want an affordable, ready-to-program pair of factory-style remotes. It’s ideal if you need a backup remote, a quick replacement after loss or damage, or a cost-effective alternative to dealer-priced units. Buyers comfortable arranging blade cutting and following a supplied programming guide will get the fastest return to full keyless convenience.