Can you purchase an extended warranty after your warranty has expired?

CALL THE DEALER ALL OTHER WARRANTIES ARE MARGINAL AT BEST

The onstar system can be purchased for a monthly fee. roadside assistance, your best bet may be to utilize the AAA - the service is fantastic and quick to boot. Additional warranty coverage can be purchased from various sources (dealership, aftermarket companies, etc) - but is usually just break down coverage. Be wary and read ALL the fine print if you decide to pursue an extended warranty package (the use a lot of legal fine print to weasel out of covering various parts) Good Luck