California Code, Vehicle Code - VEH § 11713.14

(a) Notwithstanding any other provision of law, a person who purchases a vehicle that is sold through a dealer at an auction of vehicles open to the general public shall have the same rights and remedies against the dealer who conducts the auction sale as if that dealer were the owner and seller of the auctioned vehicle. The purchaser's rights and remedies are in addition to any right or remedy he or she may have against an owner of a vehicle sold at a public auto auction.

(b) If any claim or action is filed against a dealer pursuant to subdivision (a) and the vehicle that is the subject of the claim or action was owned by a person other than the dealer at the time of sale by auction, the owner of the vehicle that consigned it to the dealer shall indemnify the dealer for any liability resulting from misrepresentations or other misconduct by the consignor.

(c) A purchaser's rights and remedies under this section may not be waived or modified by an agreement or by a recharacterization of the sales transaction.