Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Problems for specific Chevrolet Tahoe years:
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Repairpal verified 2008 Chevrolet Tahoe problems
The keyless entry system may stop working. Our technicians tell us the key fobs and keyless entry receiver may need to be replaced to correct this fault.
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.
The power door lock actuators may become slow to operate or stop working completely and require replacement.