How do i contact smart start customer service? Contact Information. You can contact the customer service representative of Smart Start calling Smart Start's helpline phone numbers. (800) 831-3299. Call customer service. Write review. does not support this feature. Currently you can call only US numbers.Who is smartsmart start? Smart Start operates in more than 19 countries and has a large number of clients. The company mainly focuses on selling Smart Start IN-HOM devices. These devices provide an access to more than 1000 service centers and 24/7 bilingual customer care centers. The corporate website contains information how to install and use them.Why should i submit the smart start form? By submitting this form, you agree and consent for Smart Start and its affiliates to use automated technology, including emails, calls, texts, and prerecorded messages, to contact you at the information provided. No purchase necessary; message and data rates may apply. about our Ignition Interlock. Excellent customer service!What are the reviews of smart start ignition interlock? 23 reviews of Smart Start Ignition Interlock "This company provides terrible customer service. The shameless self-praise about their "excellent" customer service on their brochures leave me dumbfounded. I advise people to get their ignition interlock service elsewhere."