diff --git a/src/ai/api/ai_vehicle.cpp b/src/ai/api/ai_vehicle.cpp
--- a/src/ai/api/ai_vehicle.cpp
+++ b/src/ai/api/ai_vehicle.cpp
@@ -425,3 +425,11 @@
 	Vehicle *v = ::Vehicle::Get(vehicle_id);
 	return v->orders.list != NULL && v->orders.list->GetNumVehicles() > 1;
 }
+
+/* static */ int AIVehicle::GetReliability(VehicleID vehicle_id)
+{
+	if (!IsValidVehicle(vehicle_id)) return -1;
+
+	const Vehicle *v = ::Vehicle::Get(vehicle_id);
+	return v->reliability * 100 >> 16;
+}
diff --git a/src/ai/api/ai_vehicle.hpp b/src/ai/api/ai_vehicle.hpp
--- a/src/ai/api/ai_vehicle.hpp
+++ b/src/ai/api/ai_vehicle.hpp
@@ -525,6 +525,14 @@ public:
 	 */
 	static bool HasSharedOrders(VehicleID vehicle_id);
 
+	/**
+	 * Get the current reliability of a vehicle.
+	 * @param vehicle_id The vehicle to check.
+	 * @pre IsValidVehicle(vehicle_id).
+	 * @return The current reliability (0-100%).
+	 */
+	static int GetReliability(VehicleID vehicle_id);
+
 private:
 	/**
 	 * Internal function used by SellWagon(Chain).
diff --git a/src/ai/api/ai_vehicle.hpp.sq b/src/ai/api/ai_vehicle.hpp.sq
--- a/src/ai/api/ai_vehicle.hpp.sq
+++ b/src/ai/api/ai_vehicle.hpp.sq
@@ -142,6 +142,7 @@ void SQAIVehicle_Register(Squirrel *engi
 	SQAIVehicle.DefSQStaticMethod(engine, &AIVehicle::GetGroupID,                     "GetGroupID",                     2, ".i");
 	SQAIVehicle.DefSQStaticMethod(engine, &AIVehicle::IsArticulated,                  "IsArticulated",                  2, ".i");
 	SQAIVehicle.DefSQStaticMethod(engine, &AIVehicle::HasSharedOrders,                "HasSharedOrders",                2, ".i");
+	SQAIVehicle.DefSQStaticMethod(engine, &AIVehicle::GetReliability,                 "GetReliability",                 2, ".i");
 
 	SQAIVehicle.PostRegister(engine);
 }