Does the 2004 Chevy Avalanche have?

The 2004 chevy avalanche comes from the factory with a 4 wheel vented disc with dual-piston calipers and 4-wheel ABS system standard.As far as the auto ride im not sure what option your talking about.The 4-wheel drive models have what is known as auto 4-wheel drive mode that will engage the 4-wheel drive system in to 4 high when one of the wheel sensors picks up a wheel slipping due to low traction.Best of luck.