I have gmc envoy 2003 My problume security light...

Dear Sir
Welcome, and thank you for trusting us
Securety light appear on the dashboard on GMC envoy 2003 : 

1. Remote battary 
2. the remote malfunction .
3. Empolayser fault 

To solve the problem : 

1. Replace the remote battary 
2. Reprogramm the remote 
3. Check the empolayser

I highly recommend you to make a phone call to me. In cases like yours, I found that phone calls helped much in clarifying the legal status in details. If you would like, you can make a phone call to us. It will cost you a little.
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Kind Regards
Engineer mohammad