Key Fob for Toyota Prius 2004-2009 Replacement Keyless Entry Remote

In this review the Key Fob for Toyota Prius 2004-2009 is assessed as a practical replacement for owners who need a full, functioning remote at a lower cost than dealer units. The bottom line: this replacement fob provides the same button layout and chip as the original, making it a sensible backup or direct replacement for a lost or broken Prius remote, provided the buyer understands that professional programming is required rather than self-programming.

Key Features

• Compatibility: Designed specifically for 2004 through 2009 Toyota Prius models, so buyers can expect a direct fit for those model years.
• OEM identifiers: Uses FCC ID MOZB31EG and part numbers 2584A-B31EG and 89994-47061, matching original equipment references for easier verification.
• Complete replacement: Arrives as a true complete key including chip, battery and internal electronics so you do not need to transplant components.
• Signal and quality: Built to match original functions and strong signal performance, with each unit passing a quality inspection before shipping.
• Frequency: Operates at 312MHz, which is the frequency used by the compatible Toyota Prius remotes.
• Support: Seller support includes a 6+1 month assistance window if programming or fit questions arise.

Who It's For

This replacement key fob is best for Prius owners from 2004 to 2009 who need a like-for-like remote without buying a new dealer unit, and for DIYers who are comfortable sourcing local locksmith or dealer programming. It is also useful as a backup key to keep in a glovebox or at home.

It is not ideal for buyers who expect to self-program the remote at home, since self-programming is not available and the process requires a qualified locksmith or dealership. If you need immediate plug-and-play pairing without professional assistance, a different option may be preferable.

Pros & Cons

Pros

• Matches original key functions and includes chip and battery for a complete replacement.
• Lower cost alternative to dealer remotes while retaining OEM part numbers for confidence.
• Strong signal performance and factory-like button layout make daily use reliable.
• Seller offers 6+1 months of support to help with fit or programming questions.

Cons

• Requires programming by a qualified locksmith or dealership; self-programming is not available.
• Some users report mixed durability of the outer shell over long term use, so careful installation of the internal electronics is advised.

Specifications

Our Verdict

The Key Fob for Toyota Prius 2004-2009 is a cost-effective, accurate replacement for owners needing a full-function remote that mirrors the original. It is a smart buy if you can arrange low-cost programming through a locksmith or dealer, but buyers should accept that installation is not a simple do-it-yourself task.

Frequently Asked Questions

Can I program this key myself?
No. Self-programming is not available; you will need a qualified locksmith or dealership to program the fob.

Will the key work for all Prius trims from 2004-2009?
It fits Toyota Prius models listed for 2004 through 2009, but check part numbers and the silver logo requirement before purchasing.

Does the package include a working battery and chip?
Yes. The unit is supplied as a complete key including the chip, battery and internal electronics.