A recent report stated that over 80% of the vehicles on the road have one or more service item or repair that's needed but hasn't been taken care of. Now that's a lot of undone service. That translates into something over 160 million vehicles in the US alone. Some of the neglected items are minor. Others are serious safety concerns.
The thermostat is part of your cooling system. Parker residents' vehicle thermostats perform a similar function to the thermostats in their homes. At home, you set your thermostat to maintain a comfortable temperature range. When your home gets too hot, the air conditioning kicks on and when it gets too cool, the heater turns on.