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The 2002 GMC Yukon requires Dexron VI Transmission Fluid with a capacity of 4.1 quarts. Transmission fluid, like oil, acts as a lubricant to protect the transmission parts from heat damage. The cost for a transmission fluid change on your Yukon ranges between $110 and $130 for labor, with parts priced at $70. It is recommended to change the transmission fluid every 30,000 miles. Signs that indicate the need for a fluid change include a grinding noise from the transmission, difficulty shifting gears, slipping gears, sudden surges, and a delay in movement after shifting into gear.
The 2002 GMC Yukon can hold up to 20.7 quarts of transmission fluid.