diff --git a/autoware_launch/config/planning/scenario_planning/common/common.param.yaml b/autoware_launch/config/planning/scenario_planning/common/common.param.yaml
index face8610c7..5e8809cd36 100644
--- a/autoware_launch/config/planning/scenario_planning/common/common.param.yaml
+++ b/autoware_launch/config/planning/scenario_planning/common/common.param.yaml
@@ -1,6 +1,6 @@
 /**:
   ros__parameters:
-    max_vel: 11.1           # max velocity limit [m/s]
+    max_velocity: 4.17      # max velocity limit [m/s]
 
     # constraints param for normal driving
     normal:
diff --git a/autoware_launch/launch/components/tier4_control_component.launch.xml b/autoware_launch/launch/components/tier4_control_component.launch.xml
index d15e050d7a..5c3cf06ad0 100644
--- a/autoware_launch/launch/components/tier4_control_component.launch.xml
+++ b/autoware_launch/launch/components/tier4_control_component.launch.xml
@@ -4,7 +4,7 @@
   <arg name="lateral_controller_mode" default="mpc"/>
   <arg name="longitudinal_controller_mode" default="pid"/>
   <arg name="use_individual_control_param" default="false"/>
-  <arg name="enable_autonomous_emergency_braking" default="false"/>
+  <arg name="enable_autonomous_emergency_braking" default="true"/>
   <arg name="enable_predicted_path_checker" default="false"/>
 
   <let name="latlon_controller_param_path_dir" value="$(var vehicle_id)" if="$(var use_individual_control_param)"/>