On vehicles equipped with rear air springs, the air compressor may fail causing the rear suspension to sit low.
The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.
On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.
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Owners have reported several instances of the air conditioning not blowing through main dash vents, or only blowing through the floor and defrost vents. Often this is experienced after replacement of the battery. During battery replacement, the control module for the mode actuators may lose its memory. Re-calibration of the actuator is required to address this condition.
A loose or worn gas cap may cause check engine light to illuminate.
The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.
Electrical power may be lost to the interior of the vehicle due to a blown 125 amp fuse located at the under hood fuse box. This fuse can blow if jumper cables are connected incorrectly. Replacing the blown fuse will commonly correct this problem.
One or more of the rear lights may be out due to a failed light socket plate.
GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become contaminated and require a complete cooling system flush every 60,000 to 70,000 miles.
Brake fluid can become dirty and may cause problems in the brake system ; it should be flushed every 60,000 miles.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
5.3L V8
The
spark plugs
should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.