Fuel Economy

Engine	EPA Estimated MPG city/hwy.
Vortec 4.2L I-6
2WD	14/20
4WD	14/20
Vortec 5.3L V8 with Active Fuel Management™ technology
2WD	14/20
4WD	13/19
LS2 6.0L V8
SS 2WD	12/16
SS 4WD	12/16

	Exterior (inches)
Wheelbase	113.0
Length	191.8
Height (without luggage rack)	72.5
Front tread width	62.7
Rear tread width	62.0
Vehicle width	74.7

	Interior (inches)
Headroom
front	40.2
rear	39.6
Legroom
front (at accelerator)	46.9
rear	37.0
Shoulder room
front	58.5
rear	58.5
Hip room
front	56.0
rear	58.2

	Cargo volume (cu. ft.)1
Rear seat up	41.0
Rear seat folded down	80.1
Load floor length (inches)
Rear seat up	39.7
Rear seat folded down	70.0
Maximum cargo width	55.1
Width between wheelhousings	46.1
Cargo area height	39.6

1 Cargo and load capacity limited by weight and distribution.

Capacities

	TRAILBLAZER
Fuel tank, approx. (gallons)	22
Base payload (std.)(lbs.)1
2WD (LT)	1,194
4x4 (LT)	1,227
2WD (SS)	1,505
AWD (SS)	1,338
Curb weights, estimated (lbs.)
2WD (LT)	4,356
4x4 (LT)	4,523
2WD (SS)	4,496
AWD (SS)	4,663
Maximum GVWR (lbs.)2
2WD (LT)	5,550
4x4 (LT)	5,750
2WD (SS)	6,001
AWD (SS)	6,001

1 Maximum payload capacity includes weight of driver, passengers, optional equipment and cargo.

2 Gross Vehicle Weight Rating (GVWR). When properly equipped, includes weight of vehicle, driver, passengers, optional equipment and cargo.

Trailering

TRAILBLAZER
Engine: Transmission		Vortec 4.2L I-6: Four-speed Automatic
Model	Max. Trailer Weight (lbs.)1	Axle Ratio	Max. GCWR (lbs.)2
2WD	5,400	3.42	10,000
	5,900	3.73	10,000
4x4	5,200	3.42	10,000
	5,700	3.73	10,500

TRAILBLAZER
Engine: Transmission		Vortec 5.3L V8: Four-speed Automatic
Model	Max. Trailer Weight (lbs.)1	Axle Ratio	Max. GCWR (lbs.)2
2WD	6,300	3.42	11,000
	6,800	3.73	11,500
4x4	6,100	3.42	11,000
	6,600	3.73	11,500

NOTE: Your vehicle may require additional special equipment to tow the maximum trailer weights listed here. The weight-carrying hitch limit for TrailBlazer is a 4,000-lb. trailer with 400-lb. tongue weight. Weight-distributing hitch and sway control required over 4,000-lb. trailer weight.

NOTE: Trailer tongue weight should be 10 to 15 percent of total loaded trailer weight (up to 750 lbs.). Addition of trailer tongue weight cannot cause vehicle weights to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). These ratings can be found on the certification label located on the driver door or doorframe. Base cooling system includes all content required to attain maximum trailer rating. No optional cooling equipment available.

TRAILBLAZER SS
Engine: Transmission		LS2 6.0L V8: Four-speed Automatic
Model	Max. Trailer Weight (lbs.)1	Axle Ratio	Max. GCWR (lbs.)2
2WD	6,800	4.10	11,500
AWD	6,600	4.10	11,500

1 Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. The weight of other optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle can tow. See your Chevy dealer for additional details.

2 GCWR: The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversion. A properly equipped tow vehicle and trailer at the maximum GCWR should be able to accelerate and merge with traffic, climb typical interstate grades at highway speeds, handle the combination on most road surfaces and stop adequately within a reasonable distance. The GCWR for your vehicle should not be exceeded. USING GROSS COMBINATION WEIGHT RATINGS (GCWRs) TO DETERMINE ENGINE, TRANSMISSION AND REAR AXLE RATIOS: You can use your desired GCWR calculation to determine the powertrain you will require to tow a specific trailer with your TrailBlazer. The last column to the right in the chart above shows the maximum allowable GCWR based on all available TrailBlazer engine, transmission, and rear axle combinations. The GCWR includes the total loaded weight of both TrailBlazer and the trailer.

NOTE: Trailer tongue weight should be 10 to 15 percent of total loaded trailer weight (up to 750 lbs.). Addition of trailer tongue weight cannot cause vehicle weights to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). These ratings can be found on the certification label located on the driver door or door frame. Base cooling system includes all content required to attain maximum trailer rating. No optional cooling equipment available.

Braking

	U.S. Standard
Front (LT)
Rotor size (in.) (diam. x thick.)	12 x 1.1
Rear (LT)
Rotor size (in.) (diam. x thick.)	12.8 x .78

Engine

Engine	Vortec 4.2L I-6	Vortec 5.3L V8	LS2 6.0L V8
RPO	LL8	LH6	LS2
Displacement (cu. in.)	253.9	325	366
Bore & stroke (in.)	3.66 x 4.01	3.78 x 3.27	4.00 x 3.62
Compression ratio	10:1	9.5:1	10.9:1
Cylinder-block material	Lost foam cast-aluminum	Cast-aluminum	Cast-aluminum
Cylinder-head material	Lost foam cast-aluminum	Cast-aluminum	Cast-aluminum
Valve configuration	Dual overhead cam (DOHC)	Overhead valve (OHV) with Active Fuel Management™ technology	Overhead valve (OHV)
Valves/cylinders	4	2	2
Ignition system	coil-on-plug	direct	direct
Coolant capacity (quarts)
automatic transmission:	13.9	17.9	13.7
Oil capacity (quarts)	7	6	6
Alternator rating (amps)	150	145	145
Battery (SAE rating, cca)	600	600	600
Recommended unleaded fuel	87 octane	87 octane	93 octane (recommended but not required)
Maximum engine speed (RPM)	6,300	5,900	6,500
Horsepower @ engine RPM	285 @ 6,000	300 @ 5,300	390 @ 6,000
Torque (lb.-ft.) @ engine RPM	276 @ 4,600	321 @ 4,000	400 @ 4,000

Steering

Turning Diameter	TrailBlazer	TrailBlazer SS
Curb-to-curb (ft.)	36.4	36.4

Transmission

	TrailBlazer	TrailBlazer SS
Type	4-speed automatic, electronically controlled with overdrive	4-speed automatic, electronically controlled with overdrive
RPO	M30	M70
First gear	3.06	3.06
Second gear	1.63	1.63
Third gear	1.0	1.0
Fourth gear	0.70	0.70
Reverse	2.29	2.29
Converter size (in.)	1.6	1.6
Fluid capacity (quarts)	11.4	11.4
Case material	die-cast aluminum	die-cast aluminum