2008 Hummer H3 Alpha Owner's Manual - Page 200

This is a mistake. The brakes might not have time to cool between hard stops. The brakes will wear out much faster if you do a lot of heavy braking. If you keep pace with the traffic and allow realistic following distances, you will eliminate a lot of unnecessary braking. That means better braking and longer brake life. If your vehicle ever loses electrical power while you are driving, brake normally but do not pump the brakes. If you do, the pedal could get harder to push down. If your vehicle loses electrical power, you will still have some power brake assist. But you will use it when you brake. Once the power assist is used up, it can take longer to stop, the brake pedal will be harder to push, and you might experience longer pedal travel. Adding non-dealer/non-retailer accessories can affect your vehicle's performance. See Accessories and Modifications on page 5-3. Antilock Brake System (ABS) Your vehicle has the Antilock Brake System (ABS), an advanced electronic braking system that will help prevent a braking skid. When you start the engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on. This is normal. If there is a problem with ABS, this warning light will stay on. See Antilock Brake System Warning Light on page 3-34. Let us say the road is wet and you are driving safely. Suddenly, an animal jumps out in front of you. You slam on the brakes and continue braking. Here is what happens with ABS: A computer senses that wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each wheel. 4-4