<h4>Vehicle Management Module Fixes</h4><ul><li><strong>Fixed:</strong> PHP Deprecated warning in VehicleModel.php line 216 — optional parameter $websitemember declared before required parameter $search. Removed the default null value since callers always pass a value.</li><li><strong>Fixed:</strong> Undefined variable $data in searchOwner() (VehicleController.php) — extract($request) created $search but the code referenced $data. Changed to use $request["search"] directly.</li><li><strong>Fixed:</strong> Undefined variable $model_make_id in getMakeModelsByYear() (VehicleController.php) — JS sends "make" but code expected "model_make_id". Added fallback to check both keys.</li><li><strong>Fixed:</strong> SQL GROUP BY error in getMakesByYear() (VehicleModel.php) — MySQL ONLY_FULL_GROUP_BY mode rejected SELECT * with GROUP BY on single column. Rewrote to use explicit column selection with MIN() aggregate.</li></ul>