A 3-minute lesson from the Iowa course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Beyond brakes and tires, a handful of other systems keep you in control—and one can kill you in minutes if it leaks. Learn the warning signs of trouble and Iowa's mirror requirements.
Know the rule
If the vehicle is hard to turn or doesn't turn when the steering wheel is first turned, have the steering checked by a mechanic.
On a cold morning you want to warm up the car in the garage. Don't: open the garage and back out first, because exhaust fumes can kill in a very short time.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
What does the manual say about fumes from a leaky exhaust system?
They can cause death in a very short time
They are harmful only after several hours
They are dangerous only in older vehicles
They are harmful only inside a garage
Answer: They can cause death in a very short time
Fumes from a leaky exhaust can cause death in a very short time, so never run the engine in a garage or sit in a running car without opening a window.