Question 1

6T75 transmission wave plate failure (2009-2012)

Accepted Answer

The 6-speed automatic in early Traverse models can suffer a broken 3-5-reverse wave plate, causing a sudden loss of reverse and 3rd/5th gears. GM extended coverage on some vehicles and released an updated part.

Question 2

Timing chain stretch on the 3.6 V6 (2009-2012)

Accepted Answer

The 3.6 V6 (LLT) in the 2009-2012 Traverse is prone to timing chain stretch, especially with long oil change intervals, triggering a check engine light with P0008/P0017 codes and rough running. The repair is labor-intensive.

Chevrolet TraverseTraverse 1st Gen

Known issues and common problems

Chevrolet TraverseTraverse 1st Gen

Known issues and common problems

6T75 transmission wave plate failure (2009-2012)at 130000 km · 1 solutionsHigh

Timing chain stretch on the 3.6 V6 (2009-2012)at 160000 km · 1 solutionsHigh