C1564 on Kia: How to Diagnose & Fix
Vehicle Speed Data Invalid
1 Kia model · 1 documented issue
C1564 on Kia by model: symptoms, diagnosis and fix
The Advanced Driver Assistance Systems on the K5 — including Lane Keep Assist, Forward Collision Avoidance, and Blind Spot Monitoring — intermittently throw calibration faults and disable themselves.
Common Symptoms
- Lane Keep Assist warning light and system disabled
- Forward Collision warning malfunction message
- Blind Spot Monitor not functioning
- Multiple ADAS warning lights on dashboard
How to Fix
For intermittent faults in normal conditions: clean the windshield interior and exterior thoroughly around the camera area. Ensure the camera lens cover behind the rearview mirror is clean and unobstructed. After windshield replacement, ALWAYS have the ADAS camera recalibrated at a Kia dealer — this requires specialized targets and equipment.
Owner tips & cautions
- WarningIf you get your windshield replaced, INSIST on ADAS recalibration. The camera must be recalibrated to the new windshield or your safety systems will not function correctly. Budget $300-$500 for this.
Sources for this issue (4)
- Kia TSB ELE 216 / Service Action SA442: Multifunction Camera (MFC) Replacement, 2021MY K5 (DL3a)tsb
- Kia PITSTOP PS704: Front Radar Sensor Mounting Inspection (NHTSA TSB 10200525), listed for 2022 K5tsb
- 2021 Kia K5 Forward Collision Avoidance Warnings complaints (NHTSA complaint mirror)owner-reports
- 2023 Kia K5 Forward Collision Avoidance Warnings complaints (NHTSA complaint mirror)owner-reports
C1564 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1564 mean on a Kia?
C1564 stands for "Vehicle Speed Data Invalid." C1564 is a manufacturer-specific chassis code (documented on Mitsubishi) set when the module receives abnormal or implausible vehicle-speed signal data. The system compares the incoming speed information for consistency, and repeated invalid values cause it to flag the fault and disable functions that depend on accurate speed. Effects can include disabled stability/traction features and related warning lights. Because this is a manufacturer code, confirm the exact definition against the factory manual. On Kia it is documented across 1 model: K5.
What are the most common causes of C1564?
The most common causes of C1564 are: Faulty wheel/vehicle speed sensor, Implausible or noisy speed signal on the network, Damaged wiring or connectors, Communication fault between modules, Low system voltage or poor ground, Control module fault. The specific cause varies by vehicle.
How much does it cost to fix C1564 on a Kia?
Repair costs vary widely with the root cause and Kia model; each issue on this page carries its own estimate where one is published.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.