diff --git a/generator/.DevConfigs/e2fd4917-66af-4f7a-a019-8c8fec7a1899.json b/generator/.DevConfigs/e2fd4917-66af-4f7a-a019-8c8fec7a1899.json
new file mode 100644
index 000000000000..b217dec716d6
--- /dev/null
+++ b/generator/.DevConfigs/e2fd4917-66af-4f7a-a019-8c8fec7a1899.json
@@ -0,0 +1,13 @@
+
+
+{
+  "services": [
+    {
+      "serviceName": "Account",
+      "type": "patch",
+      "changeLogMessages": [
+        "Rename internal exception property to avoid hiding inherited AmazonServiceException member."
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/generator/ServiceClientGeneratorLib/Member.cs b/generator/ServiceClientGeneratorLib/Member.cs
index 7b673fbb0923..53dc16ce09fb 100644
--- a/generator/ServiceClientGeneratorLib/Member.cs
+++ b/generator/ServiceClientGeneratorLib/Member.cs
@@ -237,6 +237,10 @@ public string BasePropertyName
                     }
                 }
 
+                // Rename ErrorType exception properties to avoid hiding AmazonServiceException.ErrorType inherited member.
+                if (OwningShape.IsException && _name.ToUpperFirstCharacter() == "ErrorType")
+                    return "RequestErrorType";
+
                 return _name.ToUpperFirstCharacter();
             }
         }
diff --git a/generator/ServiceModels/account/account.customizations.json b/generator/ServiceModels/account/account.customizations.json
deleted file mode 100644
index 7d7ac70f495c..000000000000
--- a/generator/ServiceModels/account/account.customizations.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-    "shapeModifiers": {
-        "*": {
-            "modify": [
-                {
-                    "errorType": {
-                        "emitPropertyName": "RequestErrorType"
-                    }
-                }
-            ]
-        }
-    }
-}
\ No newline at end of file
diff --git a/sdk/src/Services/Account/Generated/Model/AccessDeniedException.cs b/sdk/src/Services/Account/Generated/Model/AccessDeniedException.cs
index c517dea4033a..3a0931bfc3f0 100644
--- a/sdk/src/Services/Account/Generated/Model/AccessDeniedException.cs
+++ b/sdk/src/Services/Account/Generated/Model/AccessDeniedException.cs
@@ -38,7 +38,7 @@ namespace Amazon.Account.Model
     #endif
     public partial class AccessDeniedException : AmazonAccountException
     {
-        private string _requestErrorType;
+        private string _errorType;
 
         /// <summary>
         /// Constructs a new AccessDeniedException with the specified error
@@ -128,14 +128,14 @@ public override void GetObjectData(System.Runtime.Serialization.SerializationInf
         /// </summary>
         public string RequestErrorType
         {
-            get { return this._requestErrorType; }
-            set { this._requestErrorType = value; }
+            get { return this._errorType; }
+            set { this._errorType = value; }
         }
 
         // Check to see if RequestErrorType property is set
         internal bool IsSetRequestErrorType()
         {
-            return this._requestErrorType != null;
+            return this._errorType != null;
         }
 
     }
diff --git a/sdk/src/Services/Account/Generated/Model/ConflictException.cs b/sdk/src/Services/Account/Generated/Model/ConflictException.cs
index 311404c4cc4f..d1d4dad78087 100644
--- a/sdk/src/Services/Account/Generated/Model/ConflictException.cs
+++ b/sdk/src/Services/Account/Generated/Model/ConflictException.cs
@@ -40,7 +40,7 @@ namespace Amazon.Account.Model
     #endif
     public partial class ConflictException : AmazonAccountException
     {
-        private string _requestErrorType;
+        private string _errorType;
 
         /// <summary>
         /// Constructs a new ConflictException with the specified error
@@ -130,14 +130,14 @@ public override void GetObjectData(System.Runtime.Serialization.SerializationInf
         /// </summary>
         public string RequestErrorType
         {
-            get { return this._requestErrorType; }
-            set { this._requestErrorType = value; }
+            get { return this._errorType; }
+            set { this._errorType = value; }
         }
 
         // Check to see if RequestErrorType property is set
         internal bool IsSetRequestErrorType()
         {
-            return this._requestErrorType != null;
+            return this._errorType != null;
         }
 
     }
diff --git a/sdk/src/Services/Account/Generated/Model/InternalServerException.cs b/sdk/src/Services/Account/Generated/Model/InternalServerException.cs
index 0cf27a962239..7fd98c2431a6 100644
--- a/sdk/src/Services/Account/Generated/Model/InternalServerException.cs
+++ b/sdk/src/Services/Account/Generated/Model/InternalServerException.cs
@@ -38,7 +38,7 @@ namespace Amazon.Account.Model
     #endif
     public partial class InternalServerException : AmazonAccountException
     {
-        private string _requestErrorType;
+        private string _errorType;
 
         private RetryableDetails _retryableDetails = new RetryableDetails(false);
 
@@ -130,14 +130,14 @@ public override void GetObjectData(System.Runtime.Serialization.SerializationInf
         /// </summary>
         public string RequestErrorType
         {
-            get { return this._requestErrorType; }
-            set { this._requestErrorType = value; }
+            get { return this._errorType; }
+            set { this._errorType = value; }
         }
 
         // Check to see if RequestErrorType property is set
         internal bool IsSetRequestErrorType()
         {
-            return this._requestErrorType != null;
+            return this._errorType != null;
         }
 
         /// <summary>
diff --git a/sdk/src/Services/Account/Generated/Model/ResourceNotFoundException.cs b/sdk/src/Services/Account/Generated/Model/ResourceNotFoundException.cs
index d9a24839a44f..7cd1bbede25a 100644
--- a/sdk/src/Services/Account/Generated/Model/ResourceNotFoundException.cs
+++ b/sdk/src/Services/Account/Generated/Model/ResourceNotFoundException.cs
@@ -37,7 +37,7 @@ namespace Amazon.Account.Model
     #endif
     public partial class ResourceNotFoundException : AmazonAccountException
     {
-        private string _requestErrorType;
+        private string _errorType;
 
         /// <summary>
         /// Constructs a new ResourceNotFoundException with the specified error
@@ -127,14 +127,14 @@ public override void GetObjectData(System.Runtime.Serialization.SerializationInf
         /// </summary>
         public string RequestErrorType
         {
-            get { return this._requestErrorType; }
-            set { this._requestErrorType = value; }
+            get { return this._errorType; }
+            set { this._errorType = value; }
         }
 
         // Check to see if RequestErrorType property is set
         internal bool IsSetRequestErrorType()
         {
-            return this._requestErrorType != null;
+            return this._errorType != null;
         }
 
     }
diff --git a/sdk/src/Services/Account/Generated/Model/TooManyRequestsException.cs b/sdk/src/Services/Account/Generated/Model/TooManyRequestsException.cs
index 53214a2bd981..dc5ddc8028d6 100644
--- a/sdk/src/Services/Account/Generated/Model/TooManyRequestsException.cs
+++ b/sdk/src/Services/Account/Generated/Model/TooManyRequestsException.cs
@@ -38,7 +38,7 @@ namespace Amazon.Account.Model
     #endif
     public partial class TooManyRequestsException : AmazonAccountException
     {
-        private string _requestErrorType;
+        private string _errorType;
 
         private RetryableDetails _retryableDetails = new RetryableDetails(true);
 
@@ -130,14 +130,14 @@ public override void GetObjectData(System.Runtime.Serialization.SerializationInf
         /// </summary>
         public string RequestErrorType
         {
-            get { return this._requestErrorType; }
-            set { this._requestErrorType = value; }
+            get { return this._errorType; }
+            set { this._errorType = value; }
         }
 
         // Check to see if RequestErrorType property is set
         internal bool IsSetRequestErrorType()
         {
-            return this._requestErrorType != null;
+            return this._errorType != null;
         }
 
         /// <summary>