MechanMagic Key Fob Replacement for Chevy Traverse & Blazer (2018–2020) — Pre-assembled HYQ4EA 433MHz Remote Start

MechanMagic replacement key fob is a fully assembled, battery-included proximity smart remote compatible with select 2018–2020 Chevy Traverse and 2019–2020 Blazer push-start vehicles.

This MechanMagic keyless entry remote is built to match factory specifications for vehicles using FCC ID HYQ4EA and OEM part numbers 13529636, 13519188, and 13584514. Arriving pre-assembled with electronics and a battery, the fob is bench-tested to ensure it powers up and responds before shipping. It operates on 433 MHz and supports remote lock/unlock plus remote start on push-button start models; programming must be completed by a qualified locksmith or dealer.

Will this key fob work with my Chevy Traverse or Blazer?

If your vehicle lists one of the supported part numbers or the factory FCC ID HYQ4EA, this replacement will be compatible with the Traverse (2018–2020) and Blazer (2019–2020) models that use a proximity smart key. It is not compatible with vehicles that require a traditional metal key or non-proximity remotes.

• Compatible FCC ID: HYQ4EA
• OEM part numbers supported: 13529636, 13519188, 13584514
• Model years covered: Chevy Traverse 2018–2020, Blazer 2019–2020
• Only for push-button start vehicles (not for keyed ignitions)

How is the fob delivered and what’s included out of the box?

The MechanMagic unit ships as a complete remote: shell, circuit board, and battery are already installed so the fob powers on when tested. Packaging contains a single remote ready for professional programming; there are no extra keyblades or DIY programming tools inside.

• One pre-assembled keyless entry remote with battery and electronics
• Bench-tested for basic power and button response before shipment
• No additional internal parts required for installation
• Dealer or locksmith programming required to enable vehicle functions

What’s required to program this MechanMagic remote to my car?

Programming must be performed by a certified locksmith or an authorized dealership; the remote does not support self-programming. A pro will match the fob to your vehicle’s immobilizer and ensure remote start and proximity features operate correctly and securely.

• Bring vehicle proof of ownership to the programmer
• Programming may require diagnostic tools or OEM software
• Costs vary by locksmith or dealer—confirm pricing in advance
• MechanMagic provides a pre-tested unit to reduce setup issues

What features and limitations should buyers know?

The remote supports standard proximity key functions such as lock, unlock, and remote start (when equipped). It is designed to match factory behavior but does not include programming services or cover vehicles that use a metal key. Frequency and compatibility are fixed: 433 MHz and HYQ4EA-class devices.

• Operates at 433 MHz, matching many GM proximity remotes
• Includes a battery so the remote powers up out of the package
• Not compatible with non-push-start (keyed) vehicles
• Requires professional programming—sold as the hardware-only replacement

Who is this for? MechanMagic’s replacement key fob is intended for owners of compatible Chevy Traverse (2018–2020) and Blazer (2019–2020) vehicles who need a ready-to-program, factory-style proximity remote. It’s a practical choice if your original fob is lost, damaged, or you want a dependable backup. Installers and locksmiths will appreciate a pre-tested unit that reduces bench troubleshooting; buyers should plan for professional programming and confirm vehicle fitment before purchase.