As of 2015, the contact number for TomTom customer support is 1-866-4-TomTom or 1-866-486-6866. Customer support is available Monday through Friday 8:00 a.m. to 8:00 p.m. and Saturday 9:00 a.m. to 6:00 p.m Eastern Time.
TomTom offers email support and a user forum on its support website. The support page includes user guides, frequently asked questions and troubleshooting tools. Registration is required to send emails to customer support.
To access the user forum, navigate to the support website and click Ask On Our Forum near the bottom of the page. TomTom allows unregistered visitors to view forum questions, but requires registration to ask and answer questions.