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Daytime running lights, sometimes referred to as DRLs or DTRs, are lights that switch on automatically when your 2002 GMC Yukon XL 2500 is turned on and in drive. Since the daytime running lights are on whenever you are driving your Yukon XL 2500, they are often the first bulbs to burn out. The video above shows you how to change the daytime running lights in your 2002 Yukon XL 2500. These bulbs grow dimmer by over 20% over time, therefore we recommend changing both bulbs on your Yukon XL 2500 at the same time, even if only one bulb is burnt out - this will allow both DRL bulbs to have the same intensity and prevent the old DRL bulb from appearing dimmer than the new one.
When you change the daytime running light on your Yukon XL 2500, it is important not touch the glass part of the bulb with your fingers because the oil from your fingertips will cause that part of the bulb to burn hotter, which significantly shortens the life of the bulb. Some studies indicate that driving with your lights on can reduce accidents by 18 - 34%, driving with your DRLs or headlights on the day can reduce your chance of getting in an accident.
One of the easiest fluids to top off - learn how to open the hood and where the reservoir is on your car2002 GMC Yukon XL 2500 SLT 8.1L V8
Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?2002 GMC Yukon XL 2500 SLT 8.1L V8
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2002 GMC Yukon XL 2500 SLT 8.1L V8
Coolant hoses wear out over time and need to be replaced - check 'em early and often2002 GMC Yukon XL 2500 SLT 8.1L V8
Learn where your air filter is located and how to determine if it needs to be changed.2002 GMC Yukon XL 2500 SLT 8.1L V8
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2002 GMC Yukon XL 2500 SLT 8.1L V8