What's the 2000 GMC Sierra 1500 transmission fluid type?

The 2000 GMC Sierra 1500 uses Dexron VI Transmission Fluid. It has a capacity of 5 quarts. Transmission fluid, similar to oil, is a lubricant and its purpose is to make sure that the various working parts of the transmission are not subject to damage from heat. The cost of getting the transmission fluid changed on Your Sierra is between $180 and $230 for labor and parts are priced at $80. You should get Your transmission fluid changed every 90,000 miles. The signs that You need a transmission fluid change include a grinding noise coming from the transmission, problems shifting gears, slippage during gear shifts, sudden unexplained surges, and a delay in movement after You place the vehicle in gear.