Passkey Immobilizer, 2004 GMC Sierra, Viper 5305V

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beder48

Member - Posts: 3

Joined: December 15, 2025

Location: Indiana, United States

Posted: December 15, 2025 at 11:09 PM / IP Logged

I have a 2004 GMC Sierra with manual door locks and manual windows and no factory alarm. Will i still have to get the passkey immobilizer for my viper remote start? Also installing a universal power door lock will i have to get relays and if so part numbers would be greatly appreciated.

Benjamin Eder

beder48

Member - Posts: 3

Joined: December 15, 2025

Location: Indiana, United States

Posted: December 16, 2025 at 8:22 AM / IP Logged

Just wanted to ask what passlock 2 bypass module will work best on 04 sierra. Bought viper 5305v alarms and remote start

Benjamin Eder

lee.lopez

Copper - Posts: 295

Joined: September 02, 2024

Location: Texas, United States

Posted: December 16, 2025 at 11:32 AM / IP Logged

Look into idatalink. DIYers can create a free account for flashing. You'll need their USB cable for flashing and an adapter cable for the Viper.

beder48

Member - Posts: 3

Joined: December 15, 2025

Location: Indiana, United States

Posted: December 16, 2025 at 11:48 AM / IP Logged

Alright I will look into this and thanks for the info

Benjamin Eder

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