Stating that a buyer "must, within a reasonable time after he or she discovers or should have discovered any breach, notify the seller of the breach or be barred from any remedy"
Full performance of an obligation, by the party whose duty it is to perform it, or by any other person on his behalf, and with his assent, if accepted by the creditor, extinguishes it. Ca. Civ. Code § 1473 Enacted 1872.