The deal will see the car manufacturer sponsor the station's coverage of all home nation internationals until the end of October.
The deal began last night with Talksport's coverage of England Vs Scotland, with match build up live from Wembley in a Vauxhall branded studio.
Cheryl Stibbs, the sponsorship marketing manager at Vauxhall, said: "We are very excited about the home nation's football partnership with TalkSport and what better way to kick it off than with the first England versus Scotland game for 14 years?
"The TalkSport activity will be supported via our dedicated national football Twitter and Facebook pages, as we aim to take the fans behind the scenes of international football."
Adam Mills, the sales director at TalkSport, said: "As official partner of the England, Northern Ireland, Scotland and Wales football teams, Vauxhall is the perfect sponsor for our home nations coverage.".