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Mon-Fri: 8am-9pm EST
Sat: 9am-5pm EST
Sun: Closed
If your Cadillac has an active OnStar service plan, you can simply press your blue OnStar button to request roadside assistance.
Mon-Fri: 8am-9pm EST
Sat: 9am-5pm EST
Sun: Closed
Inside Canada: 1-888-446-2000
Inside the U.S.: 1-800-333-4223
International Inquiries: 1-905-644-4112
Mon-Sat: 8am – 9pm EST (CLOSED SUNDAYS)
Toll-free number: 1-877-558-8352
Customer Care Centre CA1-163-005
General Motors of Canada
500 Wentworth Street W
Oshawa, ON L1J 0C5
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