YDTHTLAH Smart Key Fob Replacement for Toyota Sienna 2011–2020 HYQ14ADR 314.3MHz — Pre‑installed Battery, Tested Electronics

This is a drop-in aftermarket smart key fob compatible with Toyota Sienna model years 2011–2020 (FCC ID HYQ14ADR) operating at 314.3 MHz.

This replacement key fob from YDTHTLAH is designed to match the electronic specifications of factory remotes for Toyota Sienna vehicles made between 2011 and 2020. It arrives complete with pre-installed battery and tested electronics, and it uses the same frequency and FCC ID as the original HYQ14ADR remote. As an aftermarket unit, it does not carry Toyota branding and requires professional programming and a cut metal key to fully integrate with your vehicle’s immobilizer and keyless entry system.

How do I confirm this fob fits my Sienna?

Start by checking the original remote’s FCC ID and part number. This YDTHTLAH fob matches FCC ID HYQ14ADR and part numbers 89904-08010 / 8990408010; the radio frequency is 314.3 MHz. If these codes match your current key, this replacement will be electronically compatible.

• Compare your old remote’s FCC ID to HYQ14ADR.
• Verify part numbers 89904-08010 or 8990408010 on your original key.
• Confirm your vehicle year is within 2011–2020 Sienna models.

What steps are required to make the replacement fully functional?

The fob ships with battery and circuitry installed, but it must be professionally cut and programmed to your vehicle to activate immobilizer and remote functions. Self-programming is not supported by this aftermarket unit, so plan to visit a licensed locksmith or dealership for final setup. Programming links the fob’s unique transponder to your car’s security system and ensures remote start/lock/unlock features operate correctly.

• Have the metal key blade cut to match your vehicle’s ignition.
• Bring the fob to a locksmith or dealer to program the transponder and remote functions.
• Ask the technician to verify rolling code synchronization and button responses.

What should I expect in terms of quality and warranty?

This YDTHTLAH fob is a brand-new aftermarket unit tested before shipment; it includes a pre-installed battery and electronics verified with professional equipment. Because it’s not an OEM-branded remote, there is no manufacturer logo on the housing. The seller offers customer support and a refund/replacement window for peace of mind if you encounter defects.

• 100% new housing and electronic board with factory testing.
• Pre-installed battery to allow immediate testing after programming.
• Refunds or replacements supported within a 3-month period.

Why choose an aftermarket fob instead of an OEM replacement?

An aftermarket fob like this YDTHTLAH model can provide equivalent electronic compatibility at a lower cost than dealer-sourced remotes. It’s useful when you need a quick replacement and are prepared to have the unit professionally programmed and cut. Keep in mind the tradeoff: no official Toyota badging and programming is required to enable all vehicle features.

• Cost-effective alternative to dealer-supplied remotes.
• Same operational frequency and FCC ID as original HYQ14ADR units.
• Requires locksmith or dealer for final key cutting and programming.

Who is this for: This replacement is aimed at Toyota Sienna owners from 2011 through 2020 who need a functional keyless remote without paying OEM prices. It's best for drivers comfortable arranging professional key cutting and programming, or for locksmiths and installers who supply and program replacement remotes. If you need factory-branded housing or dealer-only services, consider OEM options; otherwise this YDTHTLAH unit offers tested electronics and a simple path to restoring full remote access to your Sienna.