Key Fob Replacement for 2014-2021 Chevy & GMC 4-Button Remote

In this review of the Key Fob Replacement for 2014-2021 Chevrolet and GMC vehicles, the bottom line is simple: this is a practical, budget-friendly replacement fob for owners of regular-key (non push-start) Silverados, Sierras, Colorados and Canyons who need a reliable, OEM-like remote. It is aimed at drivers who want a ready-to-use unit with pre-installed battery and electronics, clear fitment notes, and a self-matching option that keeps installation straightforward without a locksmith for many models.

Key Features

• OEM-compatible IDs: Matches FCC ID M3N-32337100 and P/Ns listed so buyers can confirm compatibility with their original factory remote.
• Wide vehicle fitment: Designed for 2014-2020 Chevrolet Silverado and GMC Sierra and 2015-2021 Chevrolet Colorado and GMC Canyon models, covering common full-size and midsize trucks.
• Pre-installed components: Ships with electronics and battery already installed, which saves time and lets users test the remote immediately.
• Self-matching available: Includes instructions and OBD tool to make programming the remote to many vehicles straightforward without specialized gear.
• Durable construction: Made from premium plastic and tested by locksmith tools to provide the same functions as the factory fob while resisting everyday shocks.
• Warranty and support: Backed by a 24-month warranty and lifetime support for refunds or replacements if problems arise.

Who It's For

This replacement key fob is best for owners of compatible Chevrolet and GMC trucks who use a traditional metal key with remote functions and need a quick swap for a lost or damaged fob. It suits DIYers who prefer programming their own remotes using the included guide or OBD tool and who value a new unit that arrives ready to test.

It is not suitable for vehicles with push-button start systems or for users who require specialty smart keys or immobilizer changes beyond remote programming. Buyers uncertain about compatibility should check their original remote buttons and FCC ID before purchasing.

Pros & Cons

Pros

• Pre-tested and shipped with battery and electronics installed for immediate use.
• Compatible with exact FCC ID and part numbers for confident fitment checks.
• Self-matching procedure and OBD tool included make programming accessible.
• Backed by a two-year warranty and lifetime support for peace of mind.

Cons

• Does not work with push-start vehicles, limiting use to regular key systems.
• Fitment requires confirming the original remote button layout and FCC ID, which adds a step for some buyers.

Specifications

Compatibility	2014-2020 Silverado/Sierra and 2015-2021 Colorado/Canyon
FCC ID / Model	M3N-32337100 / M3N32337100
Part Numbers	13577770, 84540865, 13580082
Frequency	315 MHz
Buttons	4-button remote layout (confirm matches original)
Includes	Key fob with electronics and battery, larger ring loop, OBD tool, user guide
Warranty	24 months and lifetime support

Our Verdict

The Key Fob Replacement is a sensible replacement for owners of compatible Chevrolet and GMC trucks who use a regular key and need a dependable remote without dealer pricing. It delivers OEM-matching IDs, a ready-to-use unit out of the box, and easy self-programming for most users, making it good value for routine remote replacement needs.

Frequently Asked Questions

Will this remote work with push-button start vehicles?
No. This replacement only supports regular key vehicles and does not work on push-start systems.

Does the package include the battery and how is it programmed?
The battery and electronics are pre-installed. The package includes an OBD tool and a user guide for self-matching; follow the instructions for your model.

How can I confirm my vehicle is compatible?
Check that your original remote has the same 4-button layout and FCC ID M3N-32337100 or listed part numbers, and refer to the product fitment notes.