Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Resources for the Repair and Maintenance of your 2010 GMC Sierra 1500 Hybrid
2010 GMC Sierra 1500 Hybrid
2010 GMC Sierra 1500 Hybrid Problems
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
2010 GMC Sierra 1500 Hybrid Questions and Answers
my dealer told that gm had a bulletin on this but they could not fin today. the bang does not happen all the time. but can feel some under normal braking