diff --git a/packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/shared/base-target-group.ts b/packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/shared/base-target-group.ts
index 7524d07559fca..5ca71c8b5e528 100644
--- a/packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/shared/base-target-group.ts
+++ b/packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/shared/base-target-group.ts
@@ -106,12 +106,9 @@ export interface HealthCheck {
 
   /**
    * The amount of time, in seconds, during which no response from a target means a failed health check.
+   * Must be 2 to 120 seconds.
    *
-   * For Application Load Balancers, the range is 2-60 seconds and the
-   * default is 5 seconds. For Network Load Balancers, this is 10 seconds for
-   * TCP and HTTPS health checks and 6 seconds for HTTP health checks.
-   *
-   * @default Duration.seconds(5) for ALBs, Duration.seconds(10) or Duration.seconds(6) for NLBs
+   * @default 6 seconds if the protocol is HTTP, 5 seconds if protocol is `GENEVE`, 30 seconds if target type is `lambda`, 10 seconds for TCP, TLS, or HTTPS
    */
   readonly timeout?: cdk.Duration;