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This video shows you how to change the highbeams, which are also known as brights, in your 2003 GMC Sierra Denali. In some GMCs your headlights and highbeams are the same bulb - it is possible for the headlight portion of the bulb to burn out and for the highbeams to continue to function properly and vice versa. Replacing the bulb will restore functionality to both. Highbeam bulbs grow dimmer by over 20% over time, therefore we recommend changing both bulbs on your Sierra Denali at the same time, even if only one is burnt out - this will allow both highbeam bulbs to have the same brightness.
Be careful not to touch the glass part of the new highbeam bulb with your finger when changing it on your Sierra Denali. Touching the new highbeam bulb will cause the bulb to burn out quicker. If you accidentally touch the glass part, wipe it off with rubbing alcohol before inserting it into your Sierra Denali.
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2003 GMC Sierra Denali 6.0L V8
Got a short fuse? Don't blow a fuse, change it!2003 GMC Sierra Denali 6.0L V8
Don't be the guy with your third brake light burnt out2003 GMC Sierra Denali 6.0L V8
If you have an electrical component that doesn't work, try replacing the fuse first2003 GMC Sierra Denali 6.0L V8
You love your kids right? See how to properly secure their car seat.2004 GMC Yukon SLT 5.3L V8
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2003 GMC Sierra Denali 6.0L V8