Okla. Stat. tit. 12A, § 12A-2-608: Revocation of Acceptance in Whole or in Part

(1) The buyer may revoke his acceptance of a lot or commercial

unit whose nonconformity substantially impairs its value to him if

he has accepted it

(a) on the reasonable assumption that its nonconformity

would be cured and it has not been seasonably cured; or

(b) without discovery of such nonconformity 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.