Vehicle maintenance isn't just an important way to extent your car's life -- it's a major safety issue. Many maintenance issues are addressed by state mandated vehicle inspections. If your car is unsafe, the inspecting mechanic will let you know what you need to do to fix it. However, there could be a year or more between inspections, so car owners need to be aware of any potential safety issues and get them repaired before they lead to an accident.
One of the most common maintenance problems that can lead to a crash is improper tire pressure. Uneven tire pressure, or pressure that is too high or low, can impact performance or lead to a blowout -- especially in high-performance cars or heavy vehicles like SUVs. You can buy a cheap pressure gauge at any auto parts store and check the pressure against the recommendation in your owner's manual. While you're at it, you might want to rotate your tires to promote even wear and consistent performance.
Another key area is the car's brakes. If you notice some "softness" in the brake pedal, or feel a vibration when the brakes are applied, get them checked out by a professional mechanic. The brakes could be wearing out or you could have a problem with the car's hydraulic system.