2010 Toyota Highlander Owners Manual - Page 1487
2010 Toyota Highlander Manual
Page 1487 highlights
2-5. Driving information CAUTION ● Lubricate the hitch ball with a light coat of grease. ● Remove the trailer hitch whenever you are not towing a trailer. After removing the hitch, seal any mounting hole in the vehicle body to prevent entry of any substances into the vehicle.
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