diff --git a/panda/board/obj/bootstub.panda.bin b/panda/board/obj/bootstub.panda.bin
index 64a211688..ac228d7a0 100755
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diff --git a/panda/board/obj/bootstub.panda_h7.bin b/panda/board/obj/bootstub.panda_h7.bin
index d71ae3b44..89be15112 100755
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diff --git a/panda/board/obj/panda.bin.signed b/panda/board/obj/panda.bin.signed
index c3fe43669..f267f4e25 100644
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diff --git a/panda/board/obj/panda_h7.bin.signed b/panda/board/obj/panda_h7.bin.signed
index 9b9b3c1e4..a1403eb22 100644
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diff --git a/panda/board/safety/safety_gm.h b/panda/board/safety/safety_gm.h
index 34ed7052d..bc7b2d374 100644
--- a/panda/board/safety/safety_gm.h
+++ b/panda/board/safety/safety_gm.h
@@ -10,14 +10,14 @@ const SteeringLimits GM_STEERING_LIMITS = {
 };
 
 const LongitudinalLimits GM_ASCM_LONG_LIMITS = {
-  .max_gas = 7168,
+  .max_gas = 8191,
   .min_gas = 5500,
   .inactive_gas = 5500,
   .max_brake = 400,
 };
 
 const LongitudinalLimits GM_CAM_LONG_LIMITS = {
-  .max_gas = 7496,
+  .max_gas = 8848,
   .min_gas = 5610,
   .inactive_gas = 5650,
   .max_brake = 400,
@@ -172,6 +172,13 @@ static void gm_rx_hook(const CANPacket_t *to_push) {
       }
     }
 
+    // Cruise check for ACC models with pedal interceptor - block stock ACC
+    if ((addr == 0x1C4) && gm_has_acc && enable_gas_interceptor) {
+      // When pedal interceptor is active on ACC models, ignore stock cruise state
+      // to prevent conflicts between pedal interceptor and stock ACC
+      cruise_engaged_prev = false;
+    }
+
     if (addr == 0xBD) {
       regen_braking = (GET_BYTE(to_push, 0) >> 4) != 0U;
     }
@@ -192,6 +199,12 @@ static void gm_rx_hook(const CANPacket_t *to_push) {
     }
     generic_rx_checks(stock_ecu_detected);
   }
+  // Cruise check for Gen2 Bolt (ASCMActiveCruiseControlStatus on bus 2)
+  int addr = GET_ADDR(to_push);
+  if ((addr == 0x370) && (GET_BUS(to_push) == 2U)) {
+    bool cruise_engaged = (GET_BYTE(to_push, 2) >> 7) != 0U;  // ACCCmdActive
+    cruise_engaged_prev = cruise_engaged;
+  }
 }
 
 static bool gm_tx_hook(const CANPacket_t *to_send) {
@@ -246,6 +259,11 @@ static bool gm_tx_hook(const CANPacket_t *to_send) {
     int button = (GET_BYTE(to_send, 5) >> 4) & 0x7U;
 
     bool allowed_btn = (button == GM_BTN_CANCEL) && cruise_engaged_prev;
+    // For ACC cars with pedal interceptor, allow cancel even if cruise_engaged_prev is false
+    // (since we set it to false to prevent conflicts, but still need to cancel cruise)
+    if (gm_hw == GM_CAM && enable_gas_interceptor && button == GM_BTN_CANCEL) {
+      allowed_btn = true;
+    }
     // For standard CC, allow spamming of SET / RESUME
     if (gm_cc_long) {
       allowed_btn |= cruise_engaged_prev && (button == GM_BTN_SET || button == GM_BTN_RESUME || button == GM_BTN_UNPRESS);
@@ -288,9 +306,13 @@ static int gm_fwd_hook(int bus_num, int addr) {
     }
 
     if (bus_num == 2) {
-      // block lkas message and acc messages if gm_cam_long, forward all others
+      // block lkas message and acc messages
+      // Block 0x370 only for experimental long without pedal interceptor
       bool is_lkas_msg = (addr == 0x180);
-      bool is_acc_msg = (addr == 0x315) || (addr == 0x2CB) || (addr == 0x370);
+      bool is_acc_msg = (addr == 0x315) || (addr == 0x2CB);
+      if (gm_cam_long && !enable_gas_interceptor) {
+        is_acc_msg = is_acc_msg || (addr == 0x370);
+      }
       bool block_msg = is_lkas_msg || (is_acc_msg && gm_cam_long);
       if (!block_msg) {
         bus_fwd = 0;
@@ -322,6 +344,10 @@ static safety_config gm_init(uint16_t param) {
   gm_pedal_long = GET_FLAG(param, GM_PARAM_PEDAL_LONG);
   gm_cc_long = GET_FLAG(param, GM_PARAM_CC_LONG);
   gm_cam_long = GET_FLAG(param, GM_PARAM_HW_CAM_LONG) && !gm_cc_long;
+  // Block ACC messages when pedal interceptor is active on ACC models
+  if (gm_hw == GM_CAM && enable_gas_interceptor) {
+    gm_cam_long = true;
+  }
   gm_pcm_cruise = ((gm_hw == GM_CAM) && (!gm_cam_long || gm_cc_long) && !gm_force_ascm && !gm_pedal_long) || (gm_hw == GM_SDGM);
   gm_skip_relay_check = GET_FLAG(param, GM_PARAM_NO_CAMERA);
   gm_has_acc = !GET_FLAG(param, GM_PARAM_NO_ACC);
diff --git a/selfdrive/car/gm/carstate.py b/selfdrive/car/gm/carstate.py
index bde897ca1..c6977b5bb 100644
--- a/selfdrive/car/gm/carstate.py
+++ b/selfdrive/car/gm/carstate.py
@@ -163,7 +163,7 @@ class CarState(CarStateBase):
     if self.CP.carFingerprint in CC_ONLY_CAR:
       ret.accFaulted = False
       ret.cruiseState.speed = pt_cp.vl["ECMCruiseControl"]["CruiseSetSpeed"] * CV.KPH_TO_MS
-      # Try ECM first for cars that might have it (like most GMs), fall back to ASCM
+      # Try ASCM first for cars that might have it (like misfingerprinted Bolts), fall back to ECM
       try:
         ret.cruiseState.enabled = cam_cp.vl["ASCMActiveCruiseControlStatus"]["ACCCmdActive"] != 0
       except:
diff --git a/selfdrive/car/gm/values.py b/selfdrive/car/gm/values.py
index 21c0188f3..4402c38c2 100644
--- a/selfdrive/car/gm/values.py
+++ b/selfdrive/car/gm/values.py
@@ -42,8 +42,8 @@ class CarControllerParams:
     self.MAX_BRAKE = 400  # ~ -4.0 m/s^2 with regen
 
     if CP.carFingerprint in CAMERA_ACC_CAR and CP.carFingerprint not in CC_ONLY_CAR:
-      self.MAX_GAS = 7496
-      self.MAX_GAS_PLUS = 7496
+      self.MAX_GAS = 8848
+      self.MAX_GAS_PLUS = 8848
       self.MAX_ACC_REGEN = 5610
       self.INACTIVE_REGEN = 5650
       # Camera ACC vehicles have no regen while enabled.
@@ -52,17 +52,17 @@ class CarControllerParams:
       self.BRAKE_SWITCH_MAX = self.MAX_ACC_REGEN if CP.carFingerprint in EV_CAR else self.ZERO_GAS
 
     elif CP.carFingerprint in SDGM_CAR:
-      self.MAX_GAS = 7168
-      self.MAX_GAS_PLUS = 7168
-      self.MAX_ACC_REGEN = 5500
-      self.INACTIVE_REGEN = 5500
+      self.MAX_GAS = 7496
+      self.MAX_GAS_PLUS = 7496
+      self.MAX_ACC_REGEN = 5610
+      self.INACTIVE_REGEN = 5650
       max_regen_acceleration = 0.
       self.BRAKE_SWITCH = self.ZERO_GAS
 
     else:
-      self.MAX_GAS = 7168  # Safety limit, not ACC max. Stock ACC >8192 from standstill.
-      self.MAX_GAS_PLUS = 7168 # 8292 uses new bit, possible but not tested. Matches Twilsonco tw-main max
-      self.MAX_ACC_REGEN = 5500  # Max ACC regen is slightly less than max paddle regen
+      self.MAX_GAS = 8191  # 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_ACC_REGEN = 7110  # 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,
       # lower threshold removes some braking deadzone