diff --git a/panda/board/safety/safety_hyundai_canfd.h b/panda/board/safety/safety_hyundai_canfd.h
index 1861714..e2cc658 100644
--- a/panda/board/safety/safety_hyundai_canfd.h
+++ b/panda/board/safety/safety_hyundai_canfd.h
@@ -21,12 +21,14 @@ const SteeringLimits HYUNDAI_CANFD_STEERING_LIMITS = {
 const CanMsg HYUNDAI_CANFD_HDA2_TX_MSGS[] = {
   {0x50, 0, 16},  // LKAS
   {0x1CF, 1, 8},  // CRUISE_BUTTON
+  {426, 1, 16},  // CRUISE_BUTTON_ALT (clearpilot)
   {0x2A4, 0, 24}, // CAM_0x2A4
 };
 
 const CanMsg HYUNDAI_CANFD_HDA2_ALT_STEERING_TX_MSGS[] = {
   {0x110, 0, 32}, // LKAS_ALT
   {0x1CF, 1, 8},  // CRUISE_BUTTON
+  {426, 1, 16},  // CRUISE_BUTTONS_ALT (clearpilot)
   {0x362, 0, 32}, // CAM_0x362
 };
 
@@ -249,7 +251,7 @@ static bool hyundai_canfd_tx_hook(const CANPacket_t *to_send) {
     int button = GET_BYTE(to_send, 2) & 0x7U;
     bool is_cancel = (button == HYUNDAI_BTN_CANCEL);
     bool is_resume = (button == HYUNDAI_BTN_RESUME);
-    bool is_set_decel = (button == 2);
+    bool is_set_decel = (button == HYUNDAI_BTN_SET);
 
     // bool allowed = (is_cancel && cruise_engaged_prev) 
     // Todo: allow is_cancel anytime speed > 0 on cruiseState
@@ -262,6 +264,25 @@ static bool hyundai_canfd_tx_hook(const CANPacket_t *to_send) {
     }
   }
 
+  // CRUISE_BUTTONS_ALT
+  // if (addr == 426) {
+  //   // this gets bit 16 we want bit 36
+  //   int button = GET_BYTE(to_send, 2) & 0x7byteU;
+  //   bool is_cancel = (button == HYUNDAI_BTN_CANCEL);
+  //   bool is_resume = (button == HYUNDAI_BTN_RESUME);
+  //   bool is_set_decel = (button == HYUNDAI_BTN_SET);
+  //   // Canfd doc says there is a value 4 button allowed for canfd too, which one is it?
+  //   // bool allowed = (is_cancel && cruise_engaged_prev) 
+  //   // Todo: allow is_cancel anytime speed > 0 on cruiseState
+  //   bool allowed = (is_cancel) 
+  //     || (is_resume && controls_allowed) 
+  //     || (is_set_decel && controls_allowed);
+
+  //   if (!allowed) {
+  //     tx = false;
+  //   }
+  // }
+
   // CLEARPILOT - Allow DRIVE_MODE2
   // if (addr == 1144) {
   // }
diff --git a/selfdrive/car/hyundai/carcontroller.py b/selfdrive/car/hyundai/carcontroller.py
index 5f5d2d7..e9e1fa2 100644
--- a/selfdrive/car/hyundai/carcontroller.py
+++ b/selfdrive/car/hyundai/carcontroller.py
@@ -198,7 +198,7 @@ class CarController(CarControllerBase):
       if (self.frame - self.last_button_frame) * DT_CTRL > 0.25:
         # cruise cancel
         if CC.cruiseControl.cancel:
-          if False and self.CP.flags & HyundaiFlags.CANFD_ALT_BUTTONS:
+          if self.CP.flags & HyundaiFlags.CANFD_ALT_BUTTONS:
             can_sends.append(hyundaicanfd.create_acc_cancel(self.packer, self.CP, self.CAN, CS.cruise_info))
             self.last_button_frame = self.frame
             CS.lkas_trigger_result = 1
diff --git a/selfdrive/car/hyundai/hyundaicanfd.py b/selfdrive/car/hyundai/hyundaicanfd.py
index ca43349..5af3a55 100644
--- a/selfdrive/car/hyundai/hyundaicanfd.py
+++ b/selfdrive/car/hyundai/hyundaicanfd.py
@@ -83,6 +83,16 @@ def create_buttons(packer, CP, CAN, cnt, btn):
   bus = CAN.ECAN if CP.flags & HyundaiFlags.CANFD_HDA2 else CAN.CAM
   return packer.make_can_msg("CRUISE_BUTTONS", bus, values)
 
+# def create_buttons_alt(packer, CP, CAN, cnt, btn):
+#   values = {
+#     "COUNTER": cnt,
+#     "SET_ME_1": 1,
+#     "CRUISE_BUTTONS": btn,
+#   }
+
+#   bus = CAN.ECAN if CP.flags & HyundaiFlags.CANFD_HDA2 else CAN.CAM
+#   return packer.make_can_msg("CRUISE_BUTTONS_ALT", bus, values)
+
 def create_acc_cancel(packer, CP, CAN, cruise_info_copy):
   # TODO: why do we copy different values here?
   if CP.flags & HyundaiFlags.CANFD_CAMERA_SCC.value: