Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
GM issued a technical service bulletin addressing that very same issue:
DEFECT: The windshield wipers on these sport utility vehicles may fail to turn on, unexpectedly stop working, fail to turn off/on by themselves (moisture sensitive wiper system), or the washer pump may operate continuously because water can enter the wiper module and either cause a short circuit or corrosion of components within the module. Driver visibility could be reduced, which could result in a crash.
REMEDY: Dealers will cover the windshield wiper module vent hole with a patch. Also, the wiper motor, circuit board, and electrical connector will be inspected for signs of water intrusion and/or corrosion and be replaced as required. Owners may contact Chevrolet at 1-***-***-****
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