How to Disable the DRLs in a GMC Sonoma
- 1). Turn off the ignition and place the truck in park or first gear (manual transmission). Set the parking brake and open the hood.
- 2). Open the under hood fuse box. This is located on the right side of the engine compartment, between the air filter box and the right side strut tower.
- 3). Look on the inside of the fuse box cover. Read the diagram to determine the location of the DRL relay inside the fuse box.
- 4). Remove the DRL relay. Close the cover on the fuse box.
- 5). Start the engine. Check to make sure that the headlamps are not powered on.
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