1. Check your owner's manual. The owner's manual for your truck will contain information about the vehicle's features, including whether or not it has DRLs.
2. Look for a DRL indicator light on your dashboard. If your truck has DRLs, there should be a light on the dashboard that illuminates when the DRLs are turned on.
3. Check to see if your headlights turn on automatically when you start the engine. If your headlights turn on automatically when you start the engine, it is likely that your truck has DRLs.
4. Look for DRLs on the front of your truck. DRLs are typically located on the front of the truck, near the headlights. They may be small, round, or rectangular lights that are positioned below the headlights.
If you are still unsure whether or not your truck has DRLs, you can contact your local GMC dealer for more information.
