The sledgehammer is a tool used to "fix" dents on the Satsuma. It can be found in the garage at home, leaning against the wall next to the table. Other applications for the sledgehammer include, but are not limited to:
- "Interacting" with your neighbours
- "Picking locks" (to get cars to Fleetari or to enter the mansion)
- "Cleaning" Teimo's Shop windows (to steal fuel)
- "Fixing" other people's cars.