GMC Sierra Security

Browse GMC Sierra Security questions and answers. Choose a question that matches your symptoms.

6 discussions

Anti-theft Light Blinking?

2008 GMC SIERRA

I Recently Bought The Truck Listed Above, It Only Came With One Key And Fob. Purchased 2x Fobs And Blank Keys On Amazon. Issue Started...

5 ANSWERS

1 IMAGE

Asked by John Potter

2003 GMC SIERRA

Electrical Problem V8 Two Wheel Drive Automatic 10500 Miles I Have The Padlock Warning Light On Bright Steady Sometimes And The Truck...

16 ANSWERS

Asked by szalkuskt

2003 GMC SIERRA

I Have A 2003 Gmc Sierra 8.1l V8 Is Has The Padlock Symbol Coming On Steady Bright Sometimes And Sometimes Not. The Main Problem Is That The...

1 ANSWER

Asked by szalkuskt

2002 GMC SIERRA

The Keyless Entry System Quit Working Overnight. First Thought, Change The Battery In The Key Fob, No Change. Found Instructions For...

3 ANSWERS

Asked by n8v2tn

2000 GMC SIERRA

Security Module.

4 ANSWERS

2 IMAGES

Asked by Gilly69

2000 GMC SIERRA

Security Light Will Not Stay On, As It Should During The Relearn Procedure. I Purchased A Reman Computer Which I Installed. The Relearn...

10 ANSWERS

Asked by leeyoungkan

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