Having problems with your 2006 GMC Sierra ?
How does a GMC Anti-Theft Work?
\015 I have a 2006 GMC Sierra Denali with an anti-theft system. It's been broken into twice in the last year by hammering or punching out the locks. Neither time did an alarm sound. Should it have? Is my alarm 'broken'?\015
Anti theft in you gm vehicle is to prevent some body from driving away with your vehicle. Not to prevent someone from breaking into it. You need to have a secondary alarm system installed. This will protect the contents of your Denali. Mike
Repair Help & Product Troubleshooting for 2006 GMC Sierra
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.