1.poor gas mileage. After letter to GMC dealer response. Drive slower
2.Wipers bounced across windshield. dealer replaced but said good you brought in now as in a few days (90) dealer wouldn't replace.
3.air conditioner freezes up twice. Dealer can't find problem. 4. Transmission shifts vary poorly
5.Wheels wouldn't hold tire pressure. Dealer over-inflated to hold pressure. After 2 years tires how hold pressure. Worst car I ever purchased and can't wait to trade.
American auto manufactures having major problems meeting mileage by government and making bad cars an d we as customers are the losers.
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