diff --git a/selfdrive/car/gm/values.py b/selfdrive/car/gm/values.py
index 44975a152..a3a5e513e 100644
--- a/selfdrive/car/gm/values.py
+++ b/selfdrive/car/gm/values.py
@@ -38,7 +38,7 @@ class CarControllerParams:
 
   def __init__(self, CP):
     # Gas/brake lookups
-    self.ZERO_GAS = 6144  # Coasting
+    self.ZERO_GAS = 6150  # Coasting
     self.MAX_BRAKE = 400  # ~ -4.0 m/s^2 with regen
     self.BRAKE_SWITCH_MAX = self.ZERO_GAS
 
@@ -60,8 +60,8 @@ class CarControllerParams:
       self.max_regen_acceleration = 0.
 
     else:
-      self.MAX_GAS = 7168  # Safety limit, not ACC max. Stock ACC >8192 from standstill.
-      self.MAX_GAS_PLUS = 8191 # 8292 uses new bit, possible but not tested. Matches Twilsonco tw-main max
+      self.MAX_GAS = 8191  # Safety limit, not ACC max. Stock ACC >8192 from standstill.
+      self.MAX_GAS_PLUS = 8191
       self.MAX_ACC_REGEN = 5500  # Max ACC regen is slightly less than max paddle regen
       self.INACTIVE_REGEN = 5500
       # ICE has much less engine braking force compared to regen in EVs,