diff --git a/opendbc/car/tests/routes.py b/opendbc/car/tests/routes.py
index 2e1eca29a0..4c595bdd1a 100644
--- a/opendbc/car/tests/routes.py
+++ b/opendbc/car/tests/routes.py
@@ -207,6 +207,7 @@ class CarTestRoute(NamedTuple):
   CarTestRoute("7e34a988419b5307|2019-12-18--19-13-30", TOYOTA.TOYOTA_RAV4_TSS2),  # hybrid
   CarTestRoute("2475fb3eb2ffcc2e|2022-04-29--12-46-23", TOYOTA.TOYOTA_RAV4_TSS2_2022),  # hybrid
   CarTestRoute("20ba9ade056a8c7b|2021-02-08--21-57-35", TOYOTA.TOYOTA_RAV4_PRIME),  # SecOC
+  CarTestRoute("41ba5b181f29435d/00000075--b8cdba16c8", TOYOTA.TOYOTA_RAV4_PRIME),  # SecOC
   CarTestRoute("8bfb000e03b2a257/00000004--f9eee5f52e", TOYOTA.TOYOTA_SIENNA_4TH_GEN),  # SecOC
   CarTestRoute("7a31f030957b9c85|2023-04-01--14-12-51", TOYOTA.LEXUS_ES),
   CarTestRoute("37041c500fd30100|2020-12-30--12-17-24", TOYOTA.LEXUS_ES),  # hybrid
diff --git a/opendbc/car/toyota/carcontroller.py b/opendbc/car/toyota/carcontroller.py
index e1b4003b84..86ca51f3bd 100644
--- a/opendbc/car/toyota/carcontroller.py
+++ b/opendbc/car/toyota/carcontroller.py
@@ -51,6 +51,7 @@ def __init__(self, dbc_name, CP):
 
     self.secoc_lka_message_counter = 0
     self.secoc_lta_message_counter = 0
+    self.secoc_acc_message_counter = 0
     self.secoc_prev_reset_counter = 0
     self.secoc_mismatch_counter = 0
 
@@ -68,6 +69,7 @@ def update(self, CC, CS, now_nanos):
       if CS.secoc_synchronization['RESET_CNT'] != self.secoc_prev_reset_counter:
         self.secoc_lka_message_counter = 0
         self.secoc_lta_message_counter = 0
+        self.secoc_acc_message_counter = 0
         self.secoc_prev_reset_counter = CS.secoc_synchronization['RESET_CNT']
 
         expected_mac = build_sync_mac(self.secoc_key, int(CS.secoc_synchronization['TRIP_CNT']), int(CS.secoc_synchronization['RESET_CNT']))
@@ -210,8 +212,19 @@ def update(self, CC, CS, now_nanos):
         # internal PCM gas command can get stuck unwinding from negative accel so we apply a generous rate limit
         pcm_accel_cmd = min(pcm_accel_cmd, self.accel + ACCEL_WINDUP_LIMIT) if CC.longActive else 0.0
 
-        can_sends.append(toyotacan.create_accel_command(self.packer, pcm_accel_cmd, pcm_cancel_cmd, self.permit_braking, self.standstill_req, lead,
+        main_accel_cmd = 0. if self.CP.flags & ToyotaFlags.SECOC.value else pcm_accel_cmd
+        can_sends.append(toyotacan.create_accel_command(self.packer, main_accel_cmd, pcm_cancel_cmd, self.permit_braking, self.standstill_req, lead,
                                                         CS.acc_type, fcw_alert, self.distance_button))
+        if self.CP.flags & ToyotaFlags.SECOC.value:
+          acc_cmd_2 = toyotacan.create_accel_command_2(self.packer, pcm_accel_cmd)
+          acc_cmd_2 = add_mac(self.secoc_key,
+                              int(CS.secoc_synchronization['TRIP_CNT']),
+                              int(CS.secoc_synchronization['RESET_CNT']),
+                              self.secoc_acc_message_counter,
+                              acc_cmd_2)
+          self.secoc_acc_message_counter += 1
+          can_sends.append(acc_cmd_2)
+
         self.accel = pcm_accel_cmd
       else:
         can_sends.append(toyotacan.create_accel_command(self.packer, 0, pcm_cancel_cmd, True, False, lead, CS.acc_type, False, self.distance_button))
diff --git a/opendbc/car/toyota/interface.py b/opendbc/car/toyota/interface.py
index 3691f9f78c..825e78db28 100644
--- a/opendbc/car/toyota/interface.py
+++ b/opendbc/car/toyota/interface.py
@@ -117,12 +117,9 @@ def _get_params(ret: structs.CarParams, candidate, fingerprint, car_fw, experime
     # openpilot longitudinal behind experimental long toggle:
     #  - TSS2 radar ACC cars (disables radar)
 
-    if ret.flags & ToyotaFlags.SECOC.value:
-      ret.openpilotLongitudinalControl = False
-    else:
-      ret.openpilotLongitudinalControl = ret.enableDsu or \
-        candidate in (TSS2_CAR - RADAR_ACC_CAR) or \
-        bool(ret.flags & ToyotaFlags.DISABLE_RADAR.value)
+    ret.openpilotLongitudinalControl = ret.enableDsu or \
+      candidate in (TSS2_CAR - RADAR_ACC_CAR) or \
+      bool(ret.flags & ToyotaFlags.DISABLE_RADAR.value)
 
     ret.autoResumeSng = ret.openpilotLongitudinalControl and candidate in NO_STOP_TIMER_CAR
 
diff --git a/opendbc/car/toyota/toyotacan.py b/opendbc/car/toyota/toyotacan.py
index c4f27510d6..13ae8c11ec 100644
--- a/opendbc/car/toyota/toyotacan.py
+++ b/opendbc/car/toyota/toyotacan.py
@@ -55,6 +55,11 @@ def create_accel_command(packer, accel, pcm_cancel, permit_braking, standstill_r
   }
   return packer.make_can_msg("ACC_CONTROL", 0, values)
 
+def create_accel_command_2(packer, accel):
+  values = {
+    "ACCEL_CMD": accel,
+  }
+  return packer.make_can_msg("ACC_CONTROL_2", 0, values)
 
 def create_pcs_commands(packer, accel, active, mass):
   values1 = {