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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.
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
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2002 GMC Yukon XL 2500 SLT 8.1L V8
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2002 GMC Yukon XL 2500 SLT 8.1L V8
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2002 GMC Yukon XL 2500 SLT 8.1L V8
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2002 GMC Yukon XL 2500 SLT 8.1L V8
Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary2002 GMC Yukon XL 2500 SLT 8.1L V8