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.
Using On-Board Diagnostics
Turn ignition on (engine off). Press RESET button on Driver Information Center (DIC) to acknowledge any warning messages that may be present. See Fig 1. Press OPTIONS button and hold. While holding OPTIONS button, press FUEL button 4 times within 10 seconds. System will enter automatic display mode.
In automatic display mode, each system module will be displayed on DIC followed by DTCs that exist in that module. If no DTCs exist, DIC will display NO CODES. If DTCs exist, each DTC will be displayed for 3 seconds followed by a one second pause. If Instrument Panel Cluster (IPC) cannot communicate with any system, DIC will display NO COMM for that system. At any time during automatic display mode, manual display feature can be activated by pressing any DIC button except E/M button. When all systems have been checked in automatic mode, DIC will display NO MORE CODES for 2 seconds, and will then enter manual mode.
When manual mode is entered, DIC will display MANUAL DIAGNOSTICS for 2 seconds or until any DIC button except E/M button is pressed. DIC will then display first system and number of DTCs set in that system, and wait for further instructions. Using DIC buttons, move through system diagnostics as necessary. See DIC BUTTON DIAGNOSTIC FUNCTIONS table. See Fig 1. Note all codes displayed in Body Control Module (BCM) and proceed to appropriate diagnostic and repair procedure. See BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE DEFINITIONS table.
When E/M button on DIC is pressed at any time, IPC will exit diagnostics mode. On-board diagnostics will also be exited automatically if no DIC buttons are pressed for 60 seconds.
| DIC Button | Function |
|---|---|
| FUEL (Switch 1) | Previous DTC |
| GAGES (Switch 2) | Next DTC |
| TRIP (Switch 3) | Previous System |
| OPTIONS (Switch 4) | Next System |
| E/M (Switch 5) | Exit Diagnostics |
| RESET | Clear DTCs |
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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.