One problem related to wiring has been reported for the 2009 Chevrolet Traverse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Chevrolet Traverse based on all problems reported for the 2009 Traverse.
The wiring harnesses in the a-pillar and b-pillar are not sealed from water. Water is getting into them and shorting out the speakers. This causes the warning chimes for seatbelt, backup camera and engine light to not sound. After a rain water can be poured out of the speakers connection box. Has been going on for 5 years.