Lonsdor Tech releases a major upgrade for K518 Pro and other K518 key programmers on Jan.9th, 2026. Toyota Yaris 2021- 4A mechanical all keys lost programming via OBD is available now.
Update Details:
- Toyota Yaris (2021-) 4A Mechanical Key
- Support All key lost by OBD
- Menu path:Toyota\Select from vehicle\Asia\Yaris\2021-\Mechanical key (4A)
Important Notice:
This feature requires Yaris 4A software license activation.
Please pay to obtain rolling code from authorized local distributors or third-party:
- toyotarollingcodes.com
- fleetkeysupply.com
Cost: USD $15 per rolling code.
Pre-Operation Checklist (For All Keys Lost Procedure)
Before starting, please verify the following conditions:
- Dashboard Status: All dashboard indicator lights must be off
- Center Console Status: The center console display should be completely inactive—this confirms that all keys are truly unavailable.
- OBD Connection: Ensure only Lonsdor K518 Pro/K518 key programmeris connected to the vehicle’s OBD-II port. Remove any other diagnostic tools or data loggers.
