Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1556 (WHEEL ALIGNMENT SPECIFICATIONS & ADJUSTMENT PROCEDURES)REPAIR INSTRUCTIONSMEASURING WHEEL ALIGNMENT (WITH REAR WHEEL STEERING)LEARN WHEEL ALIGNMENT PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Learn Wheel Alignment Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Learn Wheel Alignment Procedure
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition to ON position, with the engine ON.
- Install the scan tool.
- Center the steering wheel.
- Lift the rear of the vehicle off the ground ensuring the rear wheels are centered.
- Go to the Learn Alignment menu choice in the scan tool. Follow the prompts on the scan tool.IMPORTANT: When prompted by the scan tool you must turn the steering wheel a full 90° to the left and a full 90° to the right and then to center and hold. If this step is not done properly then it is possible to cause a false DTC for the steering wheel position sensor.
- Press the continue button.
- Use the scan tool to clear all rear wheel steering DTC's.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.