diff --git a/yt_dlp/extractor/iqiyi.py b/yt_dlp/extractor/iqiyi.py
index 20539f010..74e20a54a 100644
--- a/yt_dlp/extractor/iqiyi.py
+++ b/yt_dlp/extractor/iqiyi.py
@@ -10,6 +10,7 @@ from .common import InfoExtractor
 from ..compat import (
     compat_str,
     compat_urllib_parse_urlencode,
+    compat_urllib_parse_unquote
 )
 from .openload import PhantomJSwrapper
 from ..utils import (
@@ -17,6 +18,7 @@ from ..utils import (
     decode_packed_codes,
     ExtractorError,
     float_or_none,
+    format_field,
     get_element_by_id,
     get_element_by_attribute,
     int_or_none,
@@ -431,6 +433,10 @@ class IqIE(InfoExtractor):
             'format': '500',
         },
         'expected_warnings': ['format is restricted']
+    }, {
+        # VIP-restricted video
+        'url': 'https://www.iq.com/play/mermaid-in-the-fog-2021-gbdpx13bs4',
+        'only_matching': True
     }]
     _BID_TAGS = {
         '100': '240P',
@@ -457,8 +463,8 @@ class IqIE(InfoExtractor):
     _DASH_JS = '''
         console.log(page.evaluate(function() {
             var tvid = "%(tvid)s"; var vid = "%(vid)s"; var src = "%(src)s";
-            var dfp = "%(dfp)s"; var mode = "%(mode)s"; var lang = "%(lang)s"; var bid_list = %(bid_list)s;
-            var tm = new Date().getTime();
+            var uid = "%(uid)s"; var dfp = "%(dfp)s"; var mode = "%(mode)s"; var lang = "%(lang)s";
+            var bid_list = %(bid_list)s; var ut_list = %(ut_list)s; var tm = new Date().getTime();
             var cmd5x_func = %(cmd5x_func)s; var cmd5x_exporter = {}; cmd5x_func({}, cmd5x_exporter, {}); var cmd5x = cmd5x_exporter.cmd5x;
             var authKey = cmd5x(cmd5x('') + tm + '' + tvid);
             var k_uid = Array.apply(null, Array(32)).map(function() {return Math.floor(Math.random() * 15).toString(16)}).join('');
@@ -472,7 +478,7 @@ class IqIE(InfoExtractor):
                     'src': src,
                     'vt': 0,
                     'rs': 1,
-                    'uid': 0,
+                    'uid': uid,
                     'ori': 'pcw',
                     'ps': 1,
                     'k_uid': k_uid,
@@ -509,12 +515,14 @@ class IqIE(InfoExtractor):
                         'version': '10.0',
                         'dfp': dfp
                     }),
-                    'ut': 0, // TODO: Set ut param for VIP members
                 };
                 var enc_params = [];
                 for (var prop in query) {
                     enc_params.push(encodeURIComponent(prop) + '=' + encodeURIComponent(query[prop]));
                 }
+                ut_list.forEach(function(ut) {
+                    enc_params.push('ut=' + ut);
+                })
                 var dash_path = '/dash?' + enc_params.join('&'); dash_path += '&vf=' + cmd5x(dash_path);
                 dash_paths[bid] = dash_path;
             });
@@ -571,17 +579,37 @@ class IqIE(InfoExtractor):
         page_data = next_props['initialState']['play']
         video_info = page_data['curVideoInfo']
 
+        uid = traverse_obj(
+            self._parse_json(
+                self._get_cookie('I00002', '{}'), video_id, transform_source=compat_urllib_parse_unquote, fatal=False),
+            ('data', 'uid'), default=0)
+
+        if uid:
+            vip_data = self._download_json(
+                'https://pcw-api.iq.com/api/vtype', video_id, note='Downloading VIP data', errnote='Unable to download VIP data', query={
+                    'batch': 1,
+                    'platformId': 3,
+                    'modeCode': self._get_cookie('mod', 'intl'),
+                    'langCode': self._get_cookie('lang', 'en_us'),
+                    'deviceId': self._get_cookie('QC005', '')
+                }, fatal=False)
+            ut_list = traverse_obj(vip_data, ('data', 'all_vip', ..., 'vipType'), expected_type=str_or_none, default=[])
+        else:
+            ut_list = ['0']
+
         # bid 0 as an initial format checker
         dash_paths = self._parse_json(PhantomJSwrapper(self).get(
             url, html='<!DOCTYPE html>', video_id=video_id, note2='Executing signature code', jscode=self._DASH_JS % {
                 'tvid': video_info['tvId'],
                 'vid': video_info['vid'],
                 'src': traverse_obj(next_props, ('initialProps', 'pageProps', 'ptid'),
-                                    expected_type=str, default='01010031010018000000'),
+                                    expected_type=str, default='04022001010011000000'),
+                'uid': uid,
                 'dfp': self._get_cookie('dfp', ''),
                 'mode': self._get_cookie('mod', 'intl'),
                 'lang': self._get_cookie('lang', 'en_us'),
                 'bid_list': '[' + ','.join(['0', *self._BID_TAGS.keys()]) + ']',
+                'ut_list': '[' + ','.join(ut_list) + ']',
                 'cmd5x_func': self._extract_cmd5x_function(webpage, video_id),
             })[1].strip(), video_id)
 
@@ -590,9 +618,10 @@ class IqIE(InfoExtractor):
             urljoin('https://cache-video.iq.com', dash_paths['0']), video_id,
             note='Downloading initial video format info', errnote='Unable to download initial video format info')['data']
 
-        preview_time = traverse_obj(initial_format_data, ('boss_ts', 'data', 'previewTime'), expected_type=float_or_none)
-        if preview_time:
-            self.report_warning(f'This preview video is limited to {preview_time} seconds')
+        preview_time = traverse_obj(
+            initial_format_data, ('boss_ts', (None, 'data'), ('previewTime', 'rtime')), expected_type=float_or_none, get_all=False)
+        if traverse_obj(initial_format_data, ('boss_ts', 'data', 'prv'), expected_type=int_or_none):
+            self.report_warning('This preview video is limited%s' % format_field(preview_time, template='to %s seconds'))
 
         # TODO: Extract audio-only formats
         for bid in set(traverse_obj(initial_format_data, ('program', 'video', ..., 'bid'), expected_type=str_or_none, default=[])):