2009 GMC Sierra 2500 HD Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2009 GMC Sierra 2500 HD

2009 GMC Sierra 2500 HD Problems

Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

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.

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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2009 GMC Sierra 2500 HD Questions

Why would it lose all power (1 answer)

Battery is good fuses are good was driving and it shut off Will not start back

How do I reset Engine Light after repairs (1 answer)

Heater a/c fan runs but not every time turned on , why? (3 answers)

this happens only some time but more frequently lately,seems to be in the control circuitry, could be a relay or resistor failing .

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2009 GMC Sierra 2500 HD Recalls

Auxiliary Battery Fuse Link Melts

If too much current is drawn from the auxiliary battery, the fusible link can melt, causing risk of fire. Dealers will replace the jumper harness with one that includes a 40 amp inline fuse, and provide vehicle owners with supplemental owners manual information free of charge to resolve the problem.

Possible Under Hood Electrical Fire

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.

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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, bu...

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