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Opel Signum 2004 Car Keys & Remotes

1 compatible key, remote & shell (genuine and aftermarket) available for the 2004 Opel Signum.

Key specifications for the Opel Signum 2003–2008

Key types
flip keys and remote keys
Frequency
433 MHz
Buttons
2-button
Transponder chip
ID46 (HITAG 2)
Blade profile
HU100

To pick the right part, match the part number or FCC ID printed on your original remote, or listed in the Opel parts catalogue, with the specifications on each listing. Every remote listed for the Opel Signum 2003–2008 transmits on 433 MHz.

A new smart key or remote has to be programmed to the car with a key programmer, and when every key is lost the programming is still done through the diagnostic port. We ship the key worldwide from the UAE by DHL and FedEx; any automotive locksmith or the dealer can cut and program it.

Programming the Opel Signum 2004 key

Key with a blade (regular or flip)

One tool lists this key.

  • OBDSTAR Key Master G3
    • Add key
    • All keys lost
    • Remote
    PIN read function · all keys lost on the bench

Programming steps

Add key - Opcom with the Car Pass code (Opel CIM immobiliser menu)(GCC / Europe cars)

Needs: working key, new, never-programmed ID46 (PCF7946) flip or remote key cut to the car (HU43 or HU100), 4-digit security code from the Car Pass, every key the customer keeps

  1. Connect the tool at the OBD port and switch the ignition on with a working key.
  2. Open Opel / Vauxhall, Signum (Vectra C), body, steering column module (CIM), programming.
  3. Enter the 4-digit security code from the Car Pass.
  4. Choose program transponder key new, insert the new key and switch the ignition on when asked; confirm.
  5. Switch the ignition off and repeat for each further new key.
  6. Test start, lock and unlock with the new key and with every old key.
Watch out: Use a new key: a transponder already learned to another car is refused, and cheap clone keys often fail with 'programming failed'. Without the Car Pass the security code comes from the dealer, with proof of ownership.

When the key changed

Key with a blade (regular or flip)

  • 2003 - 2008This yearChip: ID46433 MHz(GCC / Europe cars)Signum (Vectra C platform) flip or remote key, H or Z series

Check coverage first: support depends on the tool's software version and the exact model. A tool that is not shown here may still cover this car.

Frequently asked questions

Which keys fit the Opel Signum 2003–2008?

1 listing fit the Opel Signum 2003–2008: flip keys and remote keys, in 2-button versions. Match the part number or FCC ID printed on your original key with the specifications on each listing.

What frequency does the Opel Signum 2003–2008 remote use?

Every remote listed for the Opel Signum 2003–2008 transmits on 433 MHz.

Which transponder chip does the Opel Signum 2003–2008 key use?

The listings for this car carry: ID46 (HITAG 2). Check the chip in each listing's specifications.

Which blade profile does the Opel Signum 2003–2008 key use?

The blades listed for this car: HU100.

Which tools program a Opel Signum 2003–2008 key?

The tool makers' coverage lists name OBDSTAR Key Master G3 for this car; 1 of them lists all keys lost. Check your tool's latest coverage list before the job.

Other Opel Signum years