diff --git a/lexus_launch/config/raw_vehicle_cmd_converter.param.yaml b/lexus_launch/config/raw_vehicle_cmd_converter.param.yaml
index ad06954..f6676bd 100644
--- a/lexus_launch/config/raw_vehicle_cmd_converter.param.yaml
+++ b/lexus_launch/config/raw_vehicle_cmd_converter.param.yaml
@@ -6,7 +6,7 @@
     use_steer_ff: true
     use_steer_fb: true
     is_debugging: false
-    max_throttle: 0.9
+    max_throttle: 0.4
     max_brake: 0.8
     max_steer: 10.0
     min_steer: -10.0