diff --git a/packages/aws-cdk-lib/aws-rds/README.md b/packages/aws-cdk-lib/aws-rds/README.md
index 973762247098e..58eed278f186d 100644
--- a/packages/aws-cdk-lib/aws-rds/README.md
+++ b/packages/aws-cdk-lib/aws-rds/README.md
@@ -938,6 +938,7 @@ Data in S3 buckets can be imported to and exported from certain database engines
 functionality, set the `s3ImportBuckets` and `s3ExportBuckets` properties for import and export respectively. When
 configured, the CDK automatically creates and configures IAM roles as required.
 Additionally, the `s3ImportRole` and `s3ExportRole` properties can be used to set this role directly.
+Note: To use `s3ImportRole` and `s3ExportRole` with Aurora PostgreSQL, you must also enable the S3 import and export features when you create the DatabaseClusterEngine.
 
 You can read more about loading data to (or from) S3 here:
 
diff --git a/packages/aws-cdk-lib/aws-rds/lib/cluster.ts b/packages/aws-cdk-lib/aws-rds/lib/cluster.ts
index 30bfd914d6303..515115663b828 100644
--- a/packages/aws-cdk-lib/aws-rds/lib/cluster.ts
+++ b/packages/aws-cdk-lib/aws-rds/lib/cluster.ts
@@ -253,7 +253,7 @@ interface DatabaseClusterBaseProps {
    * This feature is only supported by the Aurora database engine.
    *
    * This property must not be used if `s3ImportBuckets` is used.
-   *
+   * To use this property with Aurora PostgreSQL, it must be configured with the S3 import feature enabled when creating the DatabaseClusterEngine
    * For MySQL:
    * @see https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Integrating.LoadFromS3.html
    *
@@ -284,7 +284,7 @@ interface DatabaseClusterBaseProps {
    * This feature is only supported by the Aurora database engine.
    *
    * This property must not be used if `s3ExportBuckets` is used.
-   *
+   * To use this property with Aurora PostgreSQL, it must be configured with the S3 export feature enabled when creating the DatabaseClusterEngine
    * For MySQL:
    * @see https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Integrating.SaveIntoS3.html
    *