Table 1 shows one common visibility related problems of the 2006 GMC Sierra 1500.
| Problem Category | Number of Problems |
|---|---|
| Blower problems |
The contact owns a 2006 GMC sierra. While driving approximately 45 mph, the contact noticed a burning odor. She then noticed that the blower motor on the wiring harness melted, causing the vehicle to smoke. The contact called the dealer who offered no assistance. The contact did not inform the manufacture. The vehicle was not repaired. The current mileage was approximately 68,000. The failure mileage was approximately 67,800. The VIN was unavailable.
Loss of fan - blower motor (hvac) high speed operation failure. With loss of high speed fan, other fan speeds (lower) operation became intermittent, works after jiggling blower motor wire bundle at connection point on blower motor resistor. Visual inspection shows melted wire harness connector at blower motor resistor, unable to separate (remove) the connector. Searched NHTSA odi database and found three very related defect complaints - inop fan, smoke and melted wires, fan loss. Fan failure could lead to fire from melted electrical connections, loss of visibility due to windshield icing in winter, fogging over when driving in changing weather. Windshield defroster requires operative fan and defroster is a required safety item. Dealer replaced blower motor electrical connector, wire harness, and fuse, charging parts to warranty and me for the labor. This appears to be a very common defect in this product line. There is a technical service bulletin for the repair including replacement of the connection wiring to insure any melted insulation is removed. This should be a safety recall. Dealer has old parts.