Where is the thermostat on a 2003 Pontiac Vibe located?

The thermostat on a 2003 Pontiac Vibe is located in the engine compartment, specifically at the engine's front near the water pump. To access it, you'll need to remove the thermostat housing, which is typically found on the engine block where the upper radiator hose connects. Be sure to drain the coolant before removing the housing to prevent spills.