Dorman 99443ST Keyless Entry Transmitter

Dorman 99443ST Keyless Entry Transmitter

The Dorman 99443ST keyless entry transmitter is a direct-style replacement for vehicles equipped with OE FCC ID HYQ4EA. It matches the appearance and function of the original key fob on supported GMC Sierra and Chevrolet Silverado applications, including remote start-equipped models.

• Black key fob with 5 buttons
• OE FCC ID: HYQ4EA
• Remote start function supported
• Batteries included
• Programming required with a compatible scan tool
• Premium-grade replacement transmitter

Vehicle Fitment and Application

Compatible With 2019-2024 GMC Sierra 1500, N/A; 2019-2023 Chevrolet Cheyenne, N/A; 2020-2023 Chevrolet Silverado 2500 HD, N/A; 2020-2023 Chevrolet Silverado 3500 HD, N/A; 2020-2023 GMC Sierra, N/A; 2020-2023 GMC Sierra 2500 HD, N/A; 2020-2023 GMC Sierra 3500 HD, N/A; 2019-2022 Chevrolet Silverado 1500, N/A; 2022 Chevrolet Silverado 1500 LTD, N/A; and 2022 GMC Sierra 1500 Limited, N/A. This part number 99443ST is also a fitment-based search match for GMC Sierra and Chevrolet Silverado key fob replacement needs.

This part cross-references GM 1043 and M3N32337200 for the same application.

Detailed Description

Built as a nearly identical replacement or spare transmitter, the Dorman 99443ST is shaped to match the original remote used on specified GMC and Chevrolet trucks. It is designed for vehicles that use OE FCC ID HYQ4EA and is a practical choice when replacing a worn, damaged, or missing keyless entry remote. The 99443ST supports remote start and uses a 5-button layout for everyday locking, unlocking, panic, and remote access functions where equipped.

Because programming is required, the transmitter must be paired to the vehicle with a compatible scan tool. Professional setup is recommended to ensure the remote is correctly matched to the anti-theft and keyless entry system. For shoppers searching for a 2020-2024 GMC Sierra 1500 key fob replacement or a 2019-2022 Chevrolet Silverado 1500 remote transmitter, this Dorman 99443ST offers a direct-fit solution for the listed applications.

Common Uses

• Replacing a lost or damaged factory key fob
• Restoring keyless entry on supported GMC Sierra and Chevrolet Silverado trucks
• Replacing a remote with worn buttons or a cracked housing
• Adding a spare transmitter for a compatible vehicle
• Restoring remote start operation on equipped models

Installation Notes and Tips

Programming is required before use, and the remote must be paired with the vehicle using a compatible scan tool. Confirm the OE FCC ID HYQ4EA and verify the vehicle’s model year and trim before ordering. Because setup involves the anti-theft system, installation by a qualified and properly equipped professional is recommended.

Quality Assurance

Dorman designs this transmitter to match the original remote’s appearance and function on the specified applications. The premium-grade construction and OE-style layout support a consistent replacement experience for compatible GMC Sierra and Chevrolet Silverado vehicles.