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 MANUALSCHEVROLET2022TRAILBLAZER LT, 1.3L ENG VIN L, FWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSCELLULAR, ENTERTAINMENT, AND NAVIGATION - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESONSTAR BUTTON MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2022 Chevrolet Trailblazer LT, 1.3L Eng VIN L, FWD
Circuit/System Verification
2022 Chevrolet Trailblazer LT, 1.3L Eng VIN L, FWDSECTION Circuit/System Verification
NOTE:
Contact the OnStar® Call Center first before pressing the emergency button in order to notify them of the test.
- Ignition ON/vehicle in Service Mode.
- Verify that each button of the S51 Telematics Button Assembly operates normally by pressing each button individually.
- If none of the buttons operate normally
Refer to Circuit/System testing
- If some, but not all, of the buttons operate normally
Test or replace the S51 Telematics Button Assembly
- Go to next step: If all of the buttons operate normally
- If none of the buttons operate normally
- All OK.
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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.