diff --git a/board/safety/safety_gm.h b/board/safety/safety_gm.h
index 5e38e00572..cefe6fe1d0 100644
--- a/board/safety/safety_gm.h
+++ b/board/safety/safety_gm.h
@@ -8,7 +8,7 @@
 //      brake rising edge
 //      brake > 0mph
 
-const int GM_MAX_STEER = 255;
+const int GM_MAX_STEER = 300;
 const int GM_MAX_RT_DELTA = 128;          // max delta torque allowed for real time checks
 const int32_t GM_RT_INTERVAL = 250000;    // 250ms between real time checks
 const int GM_MAX_RATE_UP = 7;