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2018 GMC Terrain Denali AWD 4dr

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All Wheel Drive, Sport Utility, 4WD Sport Utility Vehicle
21 mpg city / 26 mpg hwy

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January 10, 2018, 12:43 am

Dave S

Question: how important is a 30,000 mile chekcup for 2014 gmc terrain?

My dealer says it replaces all fluids and filters throughout the car, even tranny and it costs about $1,800.00. That sounds extremely high, is it even necessary? Thanks Dave S

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