Pandora's account settings screen looks a little different than those in most apps and websites. Rather than featuring a clearly labeled "Change Password" button, it simply has a field to enter a password. At first glance, you might think this field serves to log in to your account, but in fact it's used to choose a new password. After saving your new password, Pandora asks for your old one as verification.
Change Your Password in the Pandora App
Enter a new password in the Password field and tap Save. You don't need to change anything else on the page, unless you want to alter other account details.
Enter your old Pandora password and tap OK to confirm.
Change Your Password on the Pandora Website
Log in to Pandora in your computer's Web browser. Click your email address in the corner of the page to open a menu, and choose Settings.
Enter a new password on the Password line of the Account tab and click Save Changes.
Fill in your old password and click Submit to confirm the change.