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.
2019 GMC Terrain SLFACTORY OEM SERVICE PROCEDURE
Replace and Program Control Module or Reprogram Control Module
WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
To program a replacement or an existing control module, perform the following procedure:
- Ignition/Vehicle OFF
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select B233 Radar Sensor Module - Short Range - Programming and follow the on-screen instructions.
- Ignition/vehicle ON. Run Clear Short Range Radar Sensor Vehicle Position located in the scan tool under Configuration/Reset Functions in the B233 Short Range Radar Sensor.
- Ignition/Vehicle OFF
- Ignition/Vehicle ON
- Clear DTCs.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.