Vauxhall Signum Key Replacement Guide

Last updated: August 2026 · Verified OEM part numbers

Quick answer: The Vauxhall Signum (2005-2007) uses the EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU43 3 Button Flip Remote Key for Vauxhall Vectra Signum (SKU PCK-VH-2022) — verified against OEM part numbers. See the full compatibility table below.

Compatible keys for Vauxhall Signum

Before you order

• Match the year range — Vauxhall changed key systems across model years. Check your registration year.
• Check your current key — the OEM number printed on your key matches the table above.
• Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

Which key fits my Vauxhall Signum?

The Vauxhall Signum (2005-2007) uses the EZRF G3-AM433TX 93187508 433MHz 7946 Chip HU43 3 Button Flip Remote Key for Vauxhall Vectra Signum (SKU PCK-VH-2022). Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Vauxhall Signum keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Vauxhall Signum key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

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