(1)  The  buyer  may revoke his acceptance of a lot or commercial unit
whose non-conformity substantially impairs its value to him  if  he  has
accepted it
       (a) on the reasonable assumption that its non-conformity would be
           cured and it has not been seasonably cured; or
       (b) without  discovery  of  such non-conformity if his acceptance
           was reasonably induced either by the difficulty of  discovery
           before acceptance or by the seller's assurances.
  (2) Revocation of acceptance must occur within a reasonable time after
the  buyer  discovers  or  should  have discovered the ground for it and
before any substantial change in condition of the  goods  which  is  not
caused  by  their  own  defects.  It  is  not  effective until the buyer
notifies the seller of it.
  (3) A buyer who so revokes has the same rights and duties with  regard
to the goods involved as if he had rejected them.
Structure New York Laws
Part 6 - Breach, Repudiation and Excuse
2-601 - Buyer's Rights on Improper Delivery.
2-602 - Manner and Effect of Rightful Rejection.
2-603 - Merchant Buyer's Duties as to Rightfully Rejected Goods.
2-604 - Buyer's Options as to Salvage of Rightfully Rejected Goods.
2-605 - Waiver of Buyer's Objections by Failure to Particularize.
2-606 - What Constitutes Acceptance of Goods.
2-608 - Revocation of Acceptance in Whole or in Part.
2-609 - Right to Adequate Assurance of Performance.
2-610 - Anticipatory Repudiation.
2-611 - Retraction of Anticipatory Repudiation.
2-612 - "Installment Contract"; Breach.
2-613 - Casualty to Identified Goods.
2-614 - Substituted Performance.