YDTHTLAH Smart Key Fob Replacement for Cadillac XT5/XT4 2017–2019 HYQ2EB 433MHz — Preinstalled Battery, Programmable

A ready-to-program smart proximity key fob that replaces HYQ2EB (13598516 / 13510245) for Cadillac XT5 2017–2019 and XT4 2019, operating at 433 MHz and supplied with battery and electronics installed.

If your original Cadillac smart key is lost, damaged, or failing, this aftermarket replacement provides the same button layout and frequency as the factory unit so a professional locksmith can program it to your vehicle. It’s a blank, non-branded keyless entry remote built to match the FCC ID and part numbers listed for compatible Cadillacs, delivered fully assembled and tested for electronics functionality.

Will this key fob work with my Cadillac model and year?

This replacement is designed for Cadillac vehicles that use the HYQ2EB remote: specifically XT5 models from 2017 through 2019 and XT4 from 2019. Confirm the FCC ID or part numbers stamped on your existing remote (HYQ2EB, 13598516, 13510245) before ordering to ensure compatibility.

• Compatible FCC ID: HYQ2EB
• Compatible part numbers: 13598516, 13510245
• Frequency: 433 MHz
• Confirmed vehicle fit: Cadillac XT5 (2017–2019), Cadillac XT4 (2019)

How do I get this key fob programmed and ready to use?

Programming and metal key cutting require professional tools, so you’ll need a qualified locksmith or dealership to finish setup. The unit ships with battery and internal electronics installed and tested, but it’s an aftermarket blank without OEM branding, so self-programming is not supported.

• Bring the fob to a locksmith or dealer for transponder programming
• Have the mechanical key blade cut to match your ignition lock
• Provide vehicle proof and original key information if required by the service
• Keep the original remote available for diagnostic comparison during programming

What’s included and how reliable is the hardware?

The product is a brand-new aftermarket remote shipped with a pre-installed battery and factory-tested electronics. It’s not an OEM-branded item and lacks manufacturer logos, but every unit is verified for working circuitry before dispatch to reduce installation surprises.

• Comes fully assembled with battery and internal circuit board
• Electronics checked with professional equipment prior to shipping
• Aftermarket casing—no Cadillac logo or original branding
• Support for refunds or replacement within three months

What should I know about warranty, returns, and support?

Seller support is available for three months after purchase; the seller offers refunds or replacement units within that window. If you experience issues during installation or operation, contact customer service with order details and the support team aims to respond within 24 hours.

• 3-month refund or replacement policy
• Customer service replies within 24 hours for purchase or usage questions
• Not covered as an OEM part—aftermarket disclaimers apply
• Keep proof of purchase for warranty or return requests

Who this is for: drivers of Cadillac XT5 (2017–2019) or XT4 (2019) who need a direct-matching aftermarket smart key fob at lower cost than OEM replacements, and who can arrange professional locksmith programming and key cutting. Choose this if you want a tested, ready-to-program remote with the correct FCC ID and part numbers—but not if you need an original-logo OEM housing or intend to self-program the unit.