2005 Hummer H2 Owner's Manual - Page 174
2005 Hummer H2 Manual
Page 174 highlights
Anti-Lock Brake System Warning Light With the anti-lock brake system, this light will come on when you start your engine and may stay on for several seconds. Traction Off Light The traction off light will come on when a traction control system or anti-lock brake system problem has been detected. The vehicle may need service. That's normal. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. If the light stays on, or comes on when you're driving, your vehicle needs service. You will also hear a chime sound when the light is on steady. If the regular brake system warning light isn't on, you still have brakes, but you don't have anti-lock brakes. If the regular brake system warning light is also on you don't have anti-lock brakes and there's a problem with your regular brakes. In addition to both lights, you will also hear a chime sound on the first occurrence of a problem and each time the vehicle is shut off and then restarted. See Brake System Warning Light on page 3-32. When this light is on, the system will not limit wheel spin. Adjust your driving accordingly. See Traction Control System (TCS) on page 4-9. If the Traction Control System (TCS) detects that the vehicle's brake's are overheating, the TCS will shut off and the traction off light will come on. When the brakes cool off, the TCS will turn back on automatically and the traction off light will go out. 3-34