How to Install an ABS Relay in a GMC Sierra?

Answer You have to change the ABS relay in your GMC Sierra if the ABS warning light is lit on the driver control panel display. It is usually impossible to stop a vehicle that has a malfunctioning ABS rel... Read More »

Top Q&A For: How to Install an ABS Relay in a GMC Sierra

How to Replace an Underhood Relay in a GMC Sierra?

Full-size trucks, such as the GMC Sierra, require a huge electrical system to deal with a high volume of current. A series of switches or "relays" control the flow of current within this system. Al... Read More »

How to Replace Your Turn Signal Relay in a GMC Sierra?

Truck lighting systems are easy to work on, mainly because of the generous room available in the cab. You have room to move and turn around. Turn signal lights either work until they blow out or th... Read More »

How to Install GMC Sierra Shocks?

Shock absorbers absorb the impact of any bumps encountered both on and off-road. They also prevent the vehicle from doing a "nose dive" when you stop. On a GMC Sierra, they act as a "stop" for the ... Read More »

How to Install a Sun Roof in a GMC Sierra?

Installing a sunroof in a GMC Sierra adds better ventilation and comfort during a long drive. The maximum size sunroof for a GMC Sierra is 22 inches wide and 42 inches long. The largest roof requir... Read More »