Chevrolet Silverado / GMC Sierra 5-Button Smart Key – HYQ1EA – 433.92 MHz – ID46E

Chevrolet Silverado / GMC Sierra 5-Button Smart Key – HYQ1EA – 433.92 MHz – ID46E

Aftermarket replacement smart key for select Chevrolet Silverado and GMC Sierra trucks equipped with the HYQ1EA proximity key system.

This 5-button smart key operates at 433.92 MHz using ASK modulation and features an integrated ID46E transponder with PCF7941E / NCF2951xETT chip technology. The remote provides Lock, Unlock, Remote Start, Tailgate Release, and Panic functions and is designed for compatible keyless-entry and push-to-start vehicle applications.

An HU100 emergency key is used with this remote for mechanical door access. Always verify the FCC ID, frequency, button configuration, OEM part number, emergency blade profile, and vehicle application before programming. This remote is listed at both 433.92 MHz and 434 MHz; these refer to the same nominal frequency and are not a compatibility conflict.

Key Features

• FCC ID: HYQ1EA
• IC: 1551A-1EA
• Frequency: 433.92 MHz / 434 MHz
• Modulation: ASK
• Transponder Chip: ID46E
• Chip: PCF7941E / NCF2951xETT
• Button Count: 5
• Button Layout: 4+1
• Button Functions: Lock / Unlock / Remote Start / Tailgate Release / Panic
• Key Type: Smart Key
• Keyless Go / Proximity: Yes
• Emergency Key Included: Yes
• Emergency Key Profile: HU100
• Chip Configuration: Integrated
• Battery: CR2032
• Colour: Black
• Manufacturer Type: Aftermarket
• Condition: New

Product Information

• Compatible Makes: Chevrolet / GMC
• Application Type: Remote / Proximity / Immobilizer
• Vehicle System: Keyless Go / Push-to-Start
• Transponder: ID46E / PCF7941E / NCF2951xETT
• Emergency Key: Included
• Emergency Key Profile: HU100
• Power Source: Battery Powered
• Battery Size: CR2032
• Programming: Dealer / Locksmith Programming Required
• Remote Features: Keyless Entry, Power Lock, Remote Start, Tailgate Release, Panic Mode
• OEM / Service Cross-Reference: 13508398 / 13529632 / 13591396

Vehicle Compatibility

Chevrolet

• Silverado: 2019–2020

GMC

• Sierra: 2019–2020

Important: This item is the Silverado / Sierra truck application, with a Tailgate Release button. A visually similar HYQ1EA smart key is used on Chevrolet Suburban and Tahoe with a Liftgate / Hatch Release button instead — the two are not interchangeable. Compatibility may also vary by production date, trim level, proximity system and tailgate equipment. Verify FCC ID HYQ1EA, the 433.92/434 MHz frequency, the five-button layout, and the OEM part number printed on the original remote before ordering or programming.

Programming & Compatibility

This smart key requires programming to the vehicle's immobilizer and proximity system before use.

Professional locksmith or dealer programming equipment may be required. Confirm the original FCC ID, frequency, button layout, OEM part number, and compatible proximity system before programming.