Consumer Review Video - 2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup

Common problems and easy repairs on a 2015 Sierra 2500 HD

The 2015 GMC Sierra 2500 HD is a difficult truck to maintain. The engine air filter housing will need to be removed to access the headlights, which won’t allow for reliable bulb changes. Changing the air filter itself may be a problem, as its housing is secured by multiple torx bolts and is cramped into the engine bay’s corner. The battery will also prove difficult to access, as its bracket is located deep in the engine bay and its sway bar may prove cumbersome to remove.

However, the 2015 GMC Sierra 2500 HD has its upsides. The fog lights are accessible by simply reaching behind the front bumper, allowing for reliable changes when necessary. The transmission fluid dipstick is quick to find, easy to remove, and simple to read. Replenishing the brake fluid reservoir won’t be a problem, either, as it has very open access to both its cap and level markers.

Author

Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.

2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup Fuse (Engine) Replace

If you have an electrical component that doesn't work, try replacing the fuse first

2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup Lights Turn Signal - Rear (replace bulb)

Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb

2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup Brake Fluid Add Fluid

If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems

2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup Lights Tail Light (replace bulb)

The burnt out tail light: classic reason for a cop to pull you over - change yours now

Share on   Share on Twitter   Share on Facebook
Parts & Tools
battery chargers
cabin air filters
drain pans
engine air filters
motor oil
oil filter wrenches
panel poppers
We may earn a commission from qualifying purchases as an Amazon Associate