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.
DTC 20
LKAS Control Function DTC 20 : EPS (LKAS) System Malfunction
Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Lane Keeping Assist System (LKAS) (2014 2015) , or How to Troubleshoot the Lane Keeping Assist System (LKAS) (2016 2017 2018 2019 2020) .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| 20 EPS (LKAS) System Malfunction |
DTCs (LKAS)
- Problem verification
-1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.
- 4. Test-drive the vehicle on a straight road.
NOTE:Drive the vehicle on the road, not on a lift.
- 5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 20 EPS (LKAS) System Malfunction Is DTC 20 indicated?
YES
The failure is duplicated. Go to the EPS troubleshooting .
NO
Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.
NO RELATED
Use the Manual With the Right Hardware
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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.