diff --git a/board/main.c b/board/main.c
index c6e4f0f..0ce54f8 100644
--- a/board/main.c
+++ b/board/main.c
@@ -614,6 +614,10 @@ int usb_cb_control_msg(USB_Setup_TypeDef *setup, uint8_t *resp, bool hardwired)
     case 0xf6:
       siren_enabled = (setup->b.wValue.w != 0U);
       break;
+    // **** 0xf7: set green led enabled
+    case 0xf7:
+      green_led_enabled = (setup->b.wValue.w != 0U);
+      break;
     default:
       puts("NO HANDLER ");
       puth(setup->b.bRequest);
@@ -701,7 +705,7 @@ void TIM1_BRK_TIM9_IRQ_Handler(void) {
       fan_tick();
 
       // set green LED to be controls allowed
-      current_board->set_led(LED_GREEN, controls_allowed);
+      current_board->set_led(LED_GREEN, controls_allowed | green_led_enabled);
 
       // turn off the blue LED, turned on by CAN
       // unless we are in power saving mode
diff --git a/board/main_declarations.h b/board/main_declarations.h
index 7fa2c4b..ade4aca 100644
--- a/board/main_declarations.h
+++ b/board/main_declarations.h
@@ -14,3 +14,4 @@ bool is_enumerated = 0;
 uint32_t heartbeat_counter = 0;
 uint32_t uptime_cnt = 0;
 bool siren_enabled = false;
+bool green_led_enabled = false;
diff --git a/python/__init__.py b/python/__init__.py
index 936c975..b22b010 100644
--- a/python/__init__.py
+++ b/python/__init__.py
@@ -676,3 +676,7 @@ class Panda(object):
   # ****************** Siren *****************
   def set_siren(self, enabled):
     self._handle.controlWrite(Panda.REQUEST_OUT, 0xf6, int(enabled), 0, b'')
+
+  # ****************** Debug *****************
+  def set_green_led(self, enabled):
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xf7, int(enabled), 0, b'')