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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1921 (TIRE PRESSURE MONITORING SYSTEM)REPAIR INSTRUCTIONSTIRE PRESSURE INDICATOR SENSOR REPLACEMENTREMOVAL PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Raise the vehicle on a suitable support. Refer to Lifting and Jacking the Vehicle .
Remove the tire/wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation .

NOTE: Before the tire is removed from the wheel, note the following items to avoid tire pressure sensor damage upon tire dismounting.

Place the sensors cap and valve on a dry clean surface after removal. The cap is aluminum and the valve is nickel plated to prevent corrosion and are not to be substituted with a cap or valve made of any other material.
When separating the tire bead from the wheel, position the bead breaking fixture 90 degrees from the valve stem.
Position the mounting/dismounting head so the tire iron, or pry bar, can be inserted slightly clockwise of the sensor body when prying the tire bead up and over the mounting/dismounting head.
Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead to the outside of the wheel rim.
Repeat items for inner bead.

Remove the tire from the wheel. Refer to Tire Dismounting and Mounting .

Fig 1: View Of Tire Pressure Sensor

Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.