The TrailBlazer SS models house a potent 6.0-liter V8 that generates 390 hp and 400 ft-lbs of torque. This engine is mated to a heavy-duty four-speed automatic transmission, which routes power to the rear wheels on this trim. The SS models speed from 0 to 60 mph in just 6.3 seconds, and towing capacity is rated at 6,800 pounds.

SS Trailblazers also add a sport-tuned suspension, larger brakes, 20-inch wheels, a limited-slip differential, faster-response steering, and special interior and exterior trim. Other standard features at the SS1 trim level include dual-zone air-conditioning, cruise control, full power accessories, OnStar, satellite radio, and a CD audio system.