In this action involving uninsured-motorist benefits, plaintiff appeals as of right the trial court’s order granting summary disposition in favor of defendant pursuant to MCR 2.116(C)(10). We reverse. This case has been decided without oral argument pursuant to MCR 7.214(E).
Plaintiff was injured in a car accident on March 8, 2007, in St. Clair County, Michigan. Plaintiffs vehicle was struck on the passenger side by a vehicle driven by an uninsured motorist, William Bowen, III (hereafter referred to as “Bowen”). As a result of the accident, plaintiff sustained multiple injuries.
Before filing the instant action against defendant, the insurer of her vehicle, plaintiff filed a complaint on June 18, 2007, against Bowen as the driver of the car that caused the collision and Sandra Kay Bowen as the owner of that car. AIG was the insurer of Sandra Bowen’s vehicle. The prior complaint alleged that Bowen was driving the car with Sandra Bowen’s knowledge and consent. However, it was determined during the discovery process that Bowen was specifically excluded as a driver under the AIG policy because he was charged with stealing the vehicle. Sandra Bowen was thereafter dismissed from that suit.
Bowen failed to defend against the prior lawsuit and, following testimony, a default judgment was entered against him. The trial court in the prior action took testimony from plaintiff and determined that she had suffered a serious impairment of body function. The default judgment was for $50,000 and was entered May 12, 2008.
*159Thereafter, plaintiff unsuccessfully attempted to settle with defendant, her insurance company, following entry of the default judgment in the 2007 lawsuit. Plaintiff claimed that she was entitled to recover benefits under an uninsured-motor-vehicle provision in her policy. The policy limit for uninsured-motorist benefits was $25,000. When defendant refused to settle, plaintiff filed the instant complaint, claiming breach of contract.
Defendant moved for summary disposition, arguing that plaintiff had breached the contract by failing to join Bowen and Sandra Bowen as parties, given their statuses as driver and owner, respectively, or to join defendant in the prior lawsuit, which was required in order for plaintiff to recover benefits under the policy. The trial court agreed and granted summary disposition in favor of defendant pursuant to MCR 2.116(C)(10), determining that plaintiff breached the contract when she failed to follow the unambiguous language of the policy that required joinder of all tortfeasors in the suit brought against defendant. Accordingly, plaintiff was not entitled to uninsured-motorist benefits.
On appeal, plaintiff presents myriad arguments in support of reversal, but we need only address plaintiffs contention that, essentially, defendant incurred no prejudice by her failure to join Bowen and Sandra Bowen as party defendants.
This Court reviews de novo the grant or denial of a motion for summary disposition. Brown v Brown, 478 Mich 545, 551; 739 NW2d 313 (2007). When reviewing a motion brought under MCR 2.116(0(10), this Court considers the pleadings, admissions, and other evidence submitted by the parties in a light most favorable to the nonmoving party. Brown, 478 Mich at 551-552. A decision granting summary disposition is appropriate if *160there is no genuine issue of any material fact and the moving party is entitled to judgment as a matter of law. Id. at 552.
Because uninsured-motorist coverage is not statutorily mandated, the language of the insurance policy governs the conditions of coverage. Stoddard v Citizens Ins Co of America, 249 Mich App 457, 460; 643 NW2d 265 (2002). The interpretation of an insurance contract, including resolution of whether an ambiguity exists in the contract, is a question of law that is reviewed de novo on appeal. Wilkie v Auto-Owners Ins Co, 469 Mich 41, 47; 664 NW2d 776 (2003). The language in the insurance contract is given its plain and ordinary meaning if apparent to a reader of the instrument. Id. at 47-48.
Plaintiff argues that the language in the insurance contract requiring joinder of any tortfeasors reflects an attempt to protect defendant’s subrogation rights, but plaintiffs act of procuring a default judgment, as opposed to a settlement agreement with a release, in an amount that exceeded the policy limit did not infringe defendant’s subrogation rights; defendant can still recover against Bowen. This argument necessarily acknowledges that plaintiff failed to comply with the joinder provision, but because defendant suffered no prejudice from the failure to join, defendant should not be relieved of liability to provide uninsured-motorist benefits to plaintiff, who had paid premiums for that coverage.
In Koski v Allstate Ins Co, 456 Mich 439, 444; 572 NW2d 636 (1998), our Supreme Court indicated that, generally speaking, one who files suit for performance of a contractual obligation must prove that all contractual conditions prerequisite to performance have been satisfied. However, the Court continued by stating that *161“it is a well-established principle that an insurer who seeks to cut off responsibility on the ground that its insured did not comply with a contract provision requiring notice immediately or within a reasonable time must establish actual prejudice to its position.” Id.; see also Tenneco Inc v Amerisure Mut Ins Co, 281 Mich App 429, 447-448; 761 NW2d 846 (2008).
Although we are not specifically addressing a notice provision, the joinder provision here served a comparable purpose, which was to give defendant the opportunity to protect its financial interests by exercising investigatory, defense, and subrogation rights. We conclude that the Koski principle is equally applicable to an analogous joinder provision; there is no valid distinguishing reason not to apply Koski. We acknowledge our Supreme Court’s decision in Rory v Continental Ins Co, 473 Mich 457, 461; 703 NW2d 23 (2005), wherein the Court held that an unambiguous provision in an uninsured-motorist policy must be enforced as written regardless of the equities and reasonableness of the provision. However, Koski carved out a narrow prejudice requirement relative to all insurance contracts, and Rory did not overrule the Supreme Court’s earlier ruling in Koski, which we find controlling.1
With respect to subrogation, the insurance policy provided: “If we are obligated under this policy to make payment to or for a person who has a legal right to *162collect from another party, then we will be subrogated to that right to the extent of our payment.”
Subrogation rights can be acquired by way of contractual assignment or under principles of equity. Citizens Ins Co of America v Buck, 216 Mich App 217, 226; 548 NW2d 680 (1996). Here, defendant can subrogate itself with respect to plaintiffs right to enforce the $50,000 default judgment against Bowen, at least up to the policy limit of $25,000, and attempt collection from Bowen if defendant becomes obligated, through litigation or settlement, to pay benefits to plaintiff. Bowen was not released from liability. Whether Bowen is ultimately collectible is irrelevant, given that the same problem would exist even had Bowen, Sandra Bowen, and defendant been joined in a lawsuit. And $50,000 is more than enough to cover defendant’s potential liability to plaintiff, considering that the policy limit for uninsured-motorist benefits was $25,000. Accordingly, defendant’s subrogation rights will not be prejudiced by allowing the instant suit to be litigated.
With respect to defendant’s right to defend, defendant maintains that entry of the default judgment resulted in the loss of an opportunity to challenge the elements of plaintiffs tort action, which thereby precludes defendant from challenging its liability under the insurance policy. Defendant’s argument lacks merit. The insurance policy provides that defendant is not bound by any “judgment obtained without [defendant’s] written consent,” nor is it bound by any “default judgment against any person .. . other than [defendant].” Therefore, plaintiff is contractually precluded from contending that the default judgment entitles her to collect certain sums from defendant in uninsured-motorist benefits. Regardless of the default judgment, and in the context of this insurance action, plaintiff will *163still have to prove her tort case in relation to the accident, including establishing that she suffered a serious impairment of a body function, an issue now controlled by McCormick v Carrier, 487 Mich 180, 184; 795 NW2d 517 (2010), overruling Kreiner v Fischer, 471 Mich 109; 683 NW2d 611 (2004).
The doctrine of collateral estoppel does not apply here because defendant did not have any opportunity, let alone a full, fair, and adequate opportunity, to litigate the issues of negligence and serious impairment of body function, given plaintiffs conduct in failing to join defendant in the first suit as called for by the insurance policy. Monat v State Farm Ins Co, 469 Mich 679, 682-683 & n 2; 677 NW2d 843 (2004).
Plaintiff cannot simply rely on the prior suit that led to the default judgment; the case effectively starts from scratch. Under those circumstances, defendant will not be deprived of its right to defend and thus will not be prejudiced by our allowing the instant suit to be litigated.
In light of our holding, it is unnecessary to address the additional arguments presented by plaintiff. ■
Reversed and remanded for proceedings consistent with this opinion. We do not retain jurisdiction. Having fully prevailed on appeal, plaintiff is awarded taxable costs pursuant to MCR 7.219.
Stephens, J., concurred.The dissent disagrees that defendant should be required to show prejudice, asserting that Rory controls given that it is the latest pronouncement of our Supreme Court concerning construction of an insurance policy. Rory, however, did not examine the prejudice principle discussed in Koski. Moreover, Tenneco, 281 Mich App at 447-448, which was decided in 2008 and after Rory was issued, and which constitutes binding precedent, acknowledged the continuing application of Koski. The Tenneco panel also cited additional, earlier Michigan Supreme Court precedent supporting imposition of a prejudice requirement. Id. at 448.