YDTHTLAH Replacement Smart Key Fob for Cadillac XT5 2017-2019 & XT4 2019 — HYQ2EB 433MHz, Pre‑installed Battery

Replacement smart key fob that restores proximity entry and remote functions for Cadillac XT5 (2017–2019) and XT4 (2019) using 433 MHz HYQ2EB hardware.

This aftermarket YDTHTLAH key fob is a direct-fit alternative for vehicles originally equipped with HYQ2EB (FCC ID) remotes and part numbers 13598516 or 13510245. It ships with a pre-installed battery and tested electronics but requires professional programming and a cut metal key to match your car’s immobilizer and physical ignition key. The unit is supplied without Cadillac logos or OEM branding and is intended to be installed by a locksmith or dealer.

Will this key fob physically fit my Cadillac?

Yes — this model is designed to match the original remote’s case dimensions and button layout for the listed years and platforms. Verify the FCC ID (HYQ2EB) or the part numbers on your current key to ensure compatibility before ordering.

• Compatible models: Cadillac XT5 2017, 2018, 2019 and Cadillac XT4 2019
• Works with part numbers: 13598516 and 13510245
• Operates at frequency: 433 MHz (HYQ2EB)
• Physical shape and button positions match factory-style remotes

How do I get this remote working with my vehicle?

This replacement requires professional programming to teach the fob to your vehicle’s immobilizer and remote systems; the package does not support owner self-programming. You will also need a locksmith or dealer to cut the metal key blade to fit your ignition and door locks.

• Bring the fob to a qualified locksmith or authorized service department
• Provide vehicle VIN and proof of ownership if requested
• The technician will program remote functions and cut the key blade
• After programming, test proximity unlock, lock, panic, and trunk functions

What should I expect in terms of quality and warranty?

The YDTHTLAH replacement is new and inspected before shipment; electronics and a battery are pre-installed so the fob arrives ready for programming. This is an aftermarket part without GM branding, supplied with a limited customer support and refund window.

• 100% new housing, circuitry, and pre-installed battery
• Tested with professional equipment prior to dispatch
• Support: refunds or replacements available within 3 months
• Customer service responds within 24 hours for purchase or usage questions

Are there any limitations I should know about?

Because this is an aftermarket, non-OEM remote, it does not include manufacturer logos and cannot be self-programmed. Programming and key cutting are required before the remote will operate with your vehicle.

• No GM or Cadillac logo on the case (aftermarket product)
• Professional programming and metal key cutting required
• Not compatible if your existing remote’s FCC ID or part number differs
• Check vehicle year/model and part numbers carefully before purchase

Who this is for: drivers of Cadillac XT5 model years 2017–2019 or Cadillac XT4 2019 who need a cost-effective, ready-to-program replacement remote that matches HYQ2EB/433 MHz specifications. This option suits owners comfortable coordinating locksmith or dealer programming and who prefer a tested aftermarket unit rather than an OEM-branded fob.