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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC2013YUKON 2WD V8-5.3LREPAIR AND DIAGNOSISBODY AND FRAMERELAYS AND MODULES - BODY AND FRAMEAUXILIARY STEP / RUNNING BOARD MODULETESTING AND INSPECTION
2013 GMC Yukon 2WD V8-5.3L
Auxiliary Step / Running Board Module: Testing and Inspection
2013 GMC Yukon 2WD V8-5.3LSECTION Testing and Inspection
Assist Step Control Module Programming and Setup
The Articulating Running Boards may be inoperative after replacement of the Assist Step control module. When viewing the data with the Tech 2, you may notice the parameter that reads ASC SYSTEM STATUS will read Locked.
To activate and unlock the articulating running boards for normal operation, perform the following procedures:
1. Open all front and rear doors.
2. Set the parking brake.
3. Find the running board disable switch located on the center console below the HVAC climate control system.
4. Turn the ignition switch to the RUN position, with the engine off, and toggle the disable switch at least three times within 20 seconds to activate the power running boards.
5. Ensure that the running board switch is in the ENABLE position.
6. Close all doors.
7. Open the left front or left rear door and the running board on the left side should articulate out.
8. Close the left front or left rear door and the running board should articulate in.
9. Open right front or right rear door and the running board on the right should articulate out.
10. Close the right front or right rear door and the running board should articulate in.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.