I have a 2009 Traverse and I have truly enjoyed it until the last few months. Starting in April my car will periodically simply not start. No attempt to start but not turn on, simply turn the key and...nothing! I have taken it in to the shop multiple times. Either it starts up just fine after I contact the garage (has happened multiple times) or will start if I leave it alone for about 30 minutes (has also happened multiple times). When I do take it to the garage it does not register any error codes so my mechanic has no idea where to start. It is not the battery (new in February), replaced the ignition switch (no change), and replaced the starter (no change.) It tends to work well daily for a couple of weeks and then "acts up" for a day. It finally left an engine light on for my mechanic and gave him at least 10 codes which led him to think it might be a problem with a junction box and may be connected to the traction control (which also periodically is a problem). I love my Traverse and was planning on buying a newer one this coming Spring but now I don't know. Anyone have similar issues?
Even though I am happy to hear you love your Traverse, I'm very sorry you're experiencing this ongoing start up concern. It looks like you've been working with your mechanic to address this issue, but if you plan on visiting a certified Chevrolet dealership, I'd be happy to contact them on your behalf. If this is of interest to you, please send your VIN, mileage, contact information, and preferred dealership in a private message.
Chevrolet Customer Care