One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
Resources for the Repair and Maintenance of your 2009 GMC Sierra 2500 HD
2009 GMC Sierra 2500 HD
2009 GMC Sierra 2500 HD Problems
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
Gas engines onlyThe spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
2009 GMC Sierra 2500 HD Recalls (Recent)
RepairPal Expert Overview:
The heated washer module under the hood could overheat due to excessive current draw. Under certain conditions, this could result in an under hood fire. This previous recall attempt in 2008 to repair this concern did not have the expected success. Dealers will now permanently disable and remove the heated washer module to correct this concern. This recall is expected to begin on June 20, 2010.
2009 GMC Sierra 2500 HD Questions and Answers
I'm trying to upgrade my spark plug wires, but can't seem to take the stock wires off. The plug wires have the metal shielding around each boot (on the plug end), and I cannot seem to pu...
my truck is saying clean exhaust filter asap
It is Fully Charged, The low Pressure Switch has been replaced. but it still turns on and off on its own. The fan does not tirn off it is only the compressure.
Blows back fuel when filling up. Have to fill it SUPER slow or in short bursts. Very frustrating. Thanks.
can't figure to to dislodge the in bumber sensor to be able to replace it in new bumper.
2009 GMC Sierra 2500 HD Reviews
Overall, the truck seems to be quite nice. I have had GMC trucks in the past and this new one lives up to its reputation for a solid performer. I do have one beef, that is the shocks...for some reason GM does not pay enough attention to their shocks. They should contract w/Bilstein on their non-Z71 suspensions. I wind up replacing the stock shocks w/Bilstein's, makes the ride a bit firm, but definitely worth it.