In insuree-plaintiff's claim to recover medical expenses from insurer-defendant after serious injuries sustained in a traffic accident, dismissal of the matter is reversed where: 1) the trial court misapplied the genuine dispute rule, which protects an insurer from a bad faith claim when its denial of benefits was asserted in good faith and on reasonable grounds; and 2) neither the express policy provision that authorizes the insurer to arbitrate uninsured motorist (UM) and underinsured motorist (UIM) claims nor Insurance Code section 11580.26, subdivision (b),1 which bars a cause of action for exercising the right to request arbitration of a claim under an insured's UM/UIM coverage, precluded this action based on allegations insurer unreasonably failed to make a good faith effort to obtain a prompt, fair and equitable settlement of plaintiff's claim for UIM benefits.