We received a tip from chevysalesgirl that Costco’s Holiday Sales Event for GM cars and trucks will return in October of this year.

As the case previously, you must be a Costco member before the promotion starts to be eligible for any rebate or cash card incentive offered this year.

Last year, Costco offered Executive Members a $700 Costco Cash Card and Gold Star and Business Members a $300 Costco Cash Card for the purchase or lease of an eligible GM car or truck. Last year’s promotion ran between October 2, 2018 and January 2, 2019.

If you’re planning on leasing a GM vehicle later this year, it might be a good idea to join Costco before October 1, 2019 to be eligible for this promotion.

Last year, the Costco Cash Card promotion was in addition to any existing deal you negotiated. GM brands include Chevrolet, GMC, Buick, and Cadillac. Note there may be exclusions on special models, like the all-new 2020 C8 Corvette.

We do not know the details of this year’s Costco-GM promotion — it hasn’t been released yet. That said, Costco membership is fully refundable, if for whatever reason you are dissatisfied with your membership. Those who wait and become a Costco member during the promotion period will likely be ineligible for any rebate or Costco gift card incentive offered this year.

Leasehackr is not affiliated with Costco and does not receive compensation for this post.