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.
Circuit/System Verification
2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify that no DTCs are set.
- If any DTC is set
- Go to next step: If no DTC is set
- Verify the scan tool can communicate with the left side object sensor.
- If the scan tool can not communicate with the left side object sensor
Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.
- Go to next step: If the scan tool can communicate with the left side object sensor
- If the scan tool can not communicate with the left side object sensor
- Verify the scan tool can communicate with the right side object sensor.
- If the scan tool can not communicate with the right side object sensor
Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.
- Go to next step: If the scan tool can communicate with the right side object sensor
- If the scan tool can not communicate with the right side object sensor
- Verify that the rear cross traffic indicators turn ON and then turn OFF when commanding the Rear Cross Traffic Visual Alert Indicators ON and OFF with a scan tool.
- If alert indicators do not turn ON and OFF
- Verify the system is enabled.
- If disabled, refer to diagnostic aids for cause of disable.
- If enabled test or replace the display.
- Go to next step: If indicators turn ON and OFF
- Verify that the audible alert turns ON and then turn OFF when commanding the Rear Cross Traffic Audible Alert ON and OFF with a scan tool.
- If the audible alert does not turn ON and OFF
- Verify the system is enabled.
- If disabled, refer to diagnostic aids for cause of disable.
- If enabled refer to audio system malfunction.
- Go to next step: If audible alert turns ON and OFF
- 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.