Cadillac OBD2 Port Location

Cadillac OBD2 Port Location

The diagnostic port, also known as OBD-II or OBD2 port, on Cadillac vehicles is located under the dashboard on the driver’s side. Look under the dashboard right above the brake pedal.

For short, the OBD-II diagnostic port, or OBD port for short, can diagnose vehicle problems, reset codes, stream live sensor data, and reset warning messages. You will need a Cadillac Diagnostic Scanner to access advanced options since a generic OBD-II scanner can only read and clear check engine codes.

cadillac obd2 port

Most Cadillac, including ATS, Escalade, CTS, SRX, STS, XTS, CT6, and XT5, have the On-board Diagnostic (OBD) port under the dashboard driver’s side.

obd2 port on a cadillac

The diagnosis port will allow you to read and clear fault codes from the Engine Control Unit. If you have an All System Scanner for Cadillac, you can read and clear codes from any module, including transmission, airbag SRS, transmission, climate control, ABS, traction control, and more.

Diagnose cadillac warning lights

A basic OBD-II scanner will only access trouble codes related to the engine. It will not show any other fault codes, even if warning lights are on.

We hope you find the Cadillac OBD2 Port Location guide helpful. Check these troubleshooting and repair guides for more help on your Cadillac.


  • Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

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