Need Help How Do I Turn Off The Dtrl

My 2003 Envoy Does Not Have A Off Switch

I assume you mean DRL (Daytime Running Lights) and you can turn them off by turning your light switch all the way to the left which will also turn on a signal light to indicate that your DRL's are off. However, when you turn the vehicle off, the next time you start it, you will have to do the same thing. See Page 3-15 of your Drivers Manual.

C.B.