⚠️ SECURITY TIP: One Detroit Credit Union staff will never ask for your personal information or online banking login over the phone or via email.

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Contact Us

Members - Please Login to Contact Us 

We would be happy to help! To allow us to better assist you, please use our secure messaging service which is accessible through online banking or our mobile app. You'll be able to get a quicker response and eliminate extra steps to verify your information. 

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Available on the App Store                      Android App on Google Play

Mobile Banking App for iphone      Mobile Banking App for Android

You may also reach our Contact Center at (313) 965-8640. 

Contact Center Hours:

M: 9:00am – 5:00pm

T: 9:00am – 5:00pm

W: 10:00am – 5:00pm

Th: 9:00am – 5:00pm

F: 9:00am – 5:00pm

S: 9:00am – 12:00pm

Non-Member Contact Form

If you do not currently have an account with us, please use the form below to send your inquiry. Information sent by email is at risk of loss of confidentiality if the information is transmitted over the Internet. We do not recommend sending confidential information such as account numbers or social security numbers.

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    Report a Lost or Stolen Card

    Please call the number listed on the back of your card for assistance immediately. 

    To report a VISA credit card lost or stolen, please call (800) 237-6211.

    To report a MasterCard debit card lost or stolen, call (800) 754-4128.

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    Contact 1DCU

    Contact Us

    P.O. Box 32584
    Detroit, MI 48232-0584

    P: 313-965-8640
    F: 313-965-0455