2003 Chevrolet Avalanche

On certain vehicles, the interface between the electrical terminals of the Heating, Ventilation, and Air Conditioning (HVAC) blower relay resistor module and the wiring connector (which powers the module) may be incapable of conducting higher current levels for sustained periods of operation. In addition, moisture and other contaminants (such as road de-icing materials) may enter the fresh air intake plenum and contact the internal circuit of the module or corrode the terminals. These conditions may cause the relay resistor module or wiring connector to overheat, causing various symptoms such as: the HVAC blower may not function on certain or all blower speed settings; a burning-plastic smell or smoke may be present in the vehicle, or; the HVAC blower may run continually with the ignition in the OFF position. These warning signs could, in certain instances, be leading indicators of an impending vehicle fire, which could result in property damage and/or personal injury. Correction: Owners will be provided with additional warranty coverage for the blower motor resistor module/wiring connector overheating condition. Under this "special warranty coverage", should this condition occur within 10 years or 240,000 km from first vehicle registration, dealers will install a replacement blower motor resistor and resistor module connector.

On certain vehicles, the galvanized-braided-steel tailgate support cables used to support the tailgate in the full open (horizontal) position can corrode over time and fracture when loads are applied to them. Tailgate support cable corrosion may not be visible because of the plastic sheathing covering the cable. If one cable fractured, the remaining cable may retain the tailgate in a horizontal position. If the remaining cable was weakened by corrosion, it could fracture within moments of the first cable fracture. If both cables fractured, the tailgate would suddenly drop approximately 10 degrees and strike the top surface of the rear bumper. If anyone is sitting or standing on the horizontal surface of the tailgate when both cables fracture, they could fall and be injured. On vehicles without a rear bumper, the tailgate may drop to a lower position. Correction: Dealers will replace the existing galvanized support cables with stainless steel support cables.