sounds like bad info. Most sales people do not take the time to learn their product. GM has a great program for Hummer. Training is tied to dealer money so most Hummer people are smarter then the avaerage bear. Don't need a GM exteded on a H3. Aftermarket cost on a 24/36 is about 1,000.00. Don't buy one till the regular 4/50 runs out.
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