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diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/this-is-not-object.js b/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/this-is-not-object.js
new file mode 100644
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/this-is-not-object.js
@@ -0,0 +1,53 @@
+// Copyright (C) 2021 Microsoft. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.findlastindex
+description: Throws a TypeError exception when `this` is not Object
+info: |
+  %TypedArray%.prototype.findLastIndex ( predicate [ , thisArg ] )
+
+  ...
+  2. Perform ? ValidateTypedArray(O).
+  ...
+
+  22.2.3.5.1 Runtime Semantics: ValidateTypedArray ( O )
+
+  1. If Type(O) is not Object, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+features: [Symbol, TypedArray, array-find-from-last]
+---*/
+
+var findLastIndex = TypedArray.prototype.findLastIndex;
+var predicate = function() {};
+
+assert.throws(TypeError, function() {
+  findLastIndex.call(undefined, predicate);
+}, "this is undefined");
+
+assert.throws(TypeError, function() {
+  findLastIndex.call(null, predicate);
+}, "this is null");
+
+assert.throws(TypeError, function() {
+  findLastIndex.call(42, predicate);
+}, "this is 42");
+
+assert.throws(TypeError, function() {
+  findLastIndex.call("1", predicate);
+}, "this is a string");
+
+assert.throws(TypeError, function() {
+  findLastIndex.call(true, predicate);
+}, "this is true");
+
+assert.throws(TypeError, function() {
+  findLastIndex.call(false, predicate);
+}, "this is false");
+
+var s = Symbol("s");
+assert.throws(TypeError, function() {
+  findLastIndex.call(s, predicate);
+}, "this is a Symbol");
+
+reportCompare(0, 0);