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 P2583-4A (Adaptive Cruise Control Unit) (2014 2015 2016 2017)
DTC P2583-4A : Millimeter Wave Radar Function Error
NOTE:
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| P2583-4A Millimeter Wave Radar Function Error |
DTC (ACC)
- Problem verification
-1. Clear the DTC with the HDS.
-2. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.
-3. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame P2583-4A Millimeter Wave Radar Function Error Is DTC P2583-4A indicated?
YES
The failure is duplicated. Make sure the millimeter wave radar unit and the ACC unit are that the are the correct parts for the affected vehicle.
NO
Intermittent failure, the system is OK at this time.
NO RELATED
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.