ON APPELLEES’ MOTION FOR REHEARING
GARCIA, Justice.
Appellees’ motion for rehearing en banc and motion for rehearing are denied. Our opinion of September 30, 1993, is withdrawn and the following is substituted.
Appellants, Mario Alvarado, Fidel Alvarado, Jr. and Alicia Alvarado, individually and as next friends of Fidel Alvarado, III, a minor, appeal the partial summary judgment entered in favor of appellees, Hyundai Motor Company, Hyundai Motor America, Inc., and Port City Hyundai, Inc. (Hyundai). Appellants also complain that the trial court improperly modified their nonsuit order by dismissing “with prejudice” the part of their case determined by the partial summary judgment. Hyundai contends that appellants’ motion for nonsuit was untimely and therefore, the trial court properly dismissed the claims decided by the partial summary judgment with prejudice. In addition, Hyundai maintains that the effect of the nonsuit was to make the partial summary judgment final, and the trial court properly granted its partial summary judgment. We reverse and render.
In 1989, appellants filed a products liability suit against Hyundai following an automobile rollover accident in which one of the appellants was ejected from the car and sustained serious injuries. In their petition, appellants alleged that the 1988 Hyundai Excel was defectively designed and unreasonably dangerous because: 1) the front seats were not [169]*169equipped with seat belts (manual lap belts); 2) Hyundai failed to give adequate warnings of increased dangers to which front seat passengers were exposed; and 3) Hyundai failed to give adequate instructions for the use of the front seat restraint system in the vehicle. Appellants also alleged that Hyundai was negligent in failing to equip the vehicle with a seat belt, failing to adequately test the restraint system, failing to warn of the increased risk of harm, and failing to instruct on the use of the restraint system.
Hyundai filed a motion for partial summary judgment asserting that the following allegations were preempted by federal law:
(1) the Hyundai vehicle was defective and unreasonably dangerous in that the front seats of the vehicle were not equipped with seat belts;
(2) defendant failed to give adequate warnings of increased danger to which passengers were exposed;
(3) each defendant was negligent in failing to equip the vehicle in question with a seat belt;
(4) each defendant was negligent in failing to adequately design and test a safer alternative; and
(5) each defendant was negligent in failing to warn of the increased risk of harm posed by the vehicle.
On December 17, 1990, the trial judge announced in open court that defendants’ motion was granted. Thereafter, on January 8, 1991, the trial judge signed an order granting defendants’/appellees’ motion for partial summary judgment. On January 30, 1991, the appellants filed them motion for nonsuit. The trial court entered the order granting the nonsuit the same day and dismissed the cause “without prejudice to Plaintiffs’ refiling.” On February 25,1991, appellees filed a motion to modify the order granting the non-suit, and after a hearing, the court modified its previous nonsuit order to provide that “the claims adjudicated in the summary judgment are dismissed with prejudice to refiling.” Appellants bring forth five points of error contending the trial court erred in modifying the nonsuit order and in granting the partial summary judgment.
In point of error one, appellants claim the trial court erred in modifying the nonsuit order to state “with prejudice.” Appellants maintain that the plaintiffs’ right to take a nonsuit is absolute and unqualified as long as the defendant has not made a claim for affirmative relief. Appellants acknowledge that a plaintiff no longer has the right to take a nonsuit after a final summary judgment has been entered, and that a nonsuit may no longer be taken as to a particular party when the summary judgment completely disposes of that party. However, appellants argue that they had a right to take a nonsuit in this ease because the partial summary judgment was interlocutory in nature, and the voluntary nonsuit effectively erased all interlocutory orders. Appellants also maintain that the trial court lacked jurisdiction to modify the nonsuit order because once a nonsuit is taken, the trial court loses jurisdiction of the entire ease except to render an order of dismissal without prejudice.
Hyundai responds that the plaintiff has a right to a nonsuit only if the motion is timely.2 Hyundai maintains that the nonsuit was untimely as to the issues adjudicated by the summary judgment because the nonsuit came after the motion for summary judgment motion had been filed and granted. Therefore, the trial court was correct in granting the untimely nonsuit motion with prejudice. Hyundai agrees that a partial summary judgment is an interlocutory order, but it is interlocutory only for appeal purposes. Hyundai contends that unless the trial court sets the summary judgment aside or the judgment is reversed on appeal, no further action on the issues determined by the partial summary judgment can be taken. Hyundai maintains that to allow a nonsuit after the rendition of a partial summary judgment would render Rule 166a(e) meaningless unless the successful movant secured a severance.
[170]*170The rule concerning voluntary dismissal or nonsuit is now contained in rule 162 of the Texas Rules of Civil Procedure.3 The rule provides:
At any time before the plaintiff has introduced all of his evidence other than rebuttal evidence, the plaintiff may dismiss a case, or take a non-suit, which shall be entered in the minutes. Notice of the dismissal or non-suit shall be served in accordance with Rule 21a on any party who has answered or has been served with process without necessity of court order.
Any dismissal pursuant to this rule shall not prejudice the right of an adverse party to be heard on a pending claim for affirmative relief or excuse the payment of all costs taxed by the clerk. A dismissal under this rule shall have no effect on any motion for sanctions, attorney’s fees or other costs, pending at the time of dismissal, as determined by the court.
Tex.R.Civ.P. 162. The rule is designed to allow a plaintiff to avoid unexpected emergencies. 5 Roy W. McDonald, Texas Civil PRACTICE § 27:39 (John S. Coveil ed., 1992). The importance of the right to nonsuit was discussed by our supreme court in Hoodless v. Winter, 80 Tex. 638, 16 S.W. 427 (1891), as follows:
The right of a plaintiff to take a nonsuit upon his own cause of action was considered of sufficient importance by the legislature to be given express recognition. Owing to unexpected contingencies that may occur during a trial, it is a privilege which it may become necessary for the most careful and diligent litigant to exercise, and it is important that the substance, and not the shadow alone, of the right shall be preserved.
Id. 16 S.W. at 428. The current supreme court has recently reconfirmed the importance of the rule by stating that the plaintiffs right to a nonsuit is “important and firmly rooted in the jurisprudence of our state,” and rule 162 is to be liberally construed in favor of that right. Aetna Casualty & Sur. Co. v. Specia, 849 S.W.2d 805, 806 (Tex.1993, orig. proceeding). The plaintiffs right to take a nonsuit, at any time before he has introduced all of his evidence other than rebuttal evidence, has been described as unqualified and absolute unless the defendant has filed pleadings seeking affirmative relief prior to the filing of the nonsuit. BHP Petroleum Co., Inc. v. Millard, 800 S.W.2d 838, 840 (Tex.1990, orig. proceeding); Greenberg v. Brookshire, 640 S.W.2d 870, 872 (Tex.1982); KT Bolt Mfg. Co. v. Texas Electric Coops., Inc., 837 S.W.2d 273, 275 (Tex.App.—Beaumont 1992, writ denied). In the case before us, Hyundai had not filed any pleadings seeking affirmative relief prior to the appellants’ filing of the nonsuit. Hyundai did file and had been granted a partial summary judgment.
In the context of summary judgment proceedings, courts have held that the plaintiff has a right to a nonsuit at any time prior to the announcement by the trial court of its decision to grant the summary judgment. Taliaferro v. Smith, 804 S.W.2d 548, 550 (Tex.App.—Houston [14th Dist.] 1991, no writ); Extended Servs. Program, Inc. v. First Extended Serv. Corp., 601 S.W.2d 469, [171]*171471 (Tex.Civ.App.—Dallas 1980, writ ref'd n.r.e.); Collins v. Waldo, 291 S.W.2d 360, 362 (Tex.Civ.App.—Eastland 1956, no writ). This “judicial announcement” rule was contained in the original version of rule 164 which set different deadlines for taking a nonsuit based on whether a jury or bench trial was held. The rule allowed a nonsuit at any time before the jury retired or at any time before the decision was announced when the case was tried to the judge. Smith v. Columbian Carbon Co., 145 Tex. 478, 198 S.W.2d 727 (1947). Although rule 162 no longer contains the judicial pronouncement language, it is still being applied in the context of summary judgment proceedings. See Taliaferro, 804 S.W.2d at 550 (in summaiy judgment proceeding plaintiff may take non-suit any time prior to court rendering judgment). Hyundai contends that the judicial’ pronouncement rule should apply to its partial summary judgment because summaiy judgment practice does not fit within the parameters of rule 162. In support of its assertion, Hyundai argues that the analysis applied by the court in Extended Servs. Program, Inc. v. First Extended Serv. Corp., 601 S.W.2d 469 (Tex.Civ.App.—Dallas 1980, writ refd n.r.e.), is the correct one.
In Extended Sens. Program, the plaintiff filed a motion for nonsuit five days after the hearing on the motion for summaiy judgment was held but before the summary judgment was granted. Id. at 470. The trial court denied the nonsuit motion and later entered a partial summary judgment in favor of the defendant. The defendant took a non-suit as to its counterclaim, and the summaiy judgment became final. On appeal, the defendant contended that the summary judgment proceeding was a trial for the purposes of rule 164 and the nonsuit was properly denied. Id. at 471. The court disagreed with defendant’s proposition because rule 164 gave the plaintiff the right to take a nonsuit until the time he had rested his case. Thus, the court concluded, rule 164 applied only to a trial on the merits and was not capable of being applied to summaiy judgment proceedings. Another reason given by the court for its conclusion was that the rule referred to rebuttal evidence which has no place in the summary judgment proceeding. Id. The court held that rule 164 granted the plaintiff “the right to take a nonsuit during the pen-dency of the trial judge’s ruling on a motion for summary judgment, and that rule 164 does not apply to summaiy judgment proceedings.” Id. Contra Mainland Sav. Ass’n v. Wilson, 545 S.W.2d 491, 493 (Tex.Civ.App.—Houston [1st Dist.] 1976, writ ref'd n.r.e.) (summary judgment has been treated and considered as a trial); Collins v. Waldo, 291 S.W.2d 360 (Tex.Civ.App.—Eastland 1956, no wilt) (summary judgment proceeding considered a trial for purposes of applying nonsuit rale).
In the context of partial summary judgments, we have found only two cases concerning a partial summary judgment followed by a nonsuit as to the entire cause of action. Homeright Co. v. Exchange Warehouses, Inc., 526 S.W.2d 241 (Tex.Civ.App.—Tyler 1975, writ ref'd n.r.e.); Collins v. Waldo, 291 S.W.2d 360 (Tex.Civ.App.—Eastland 1956, no writ). In Collins, the plaintiff filed suit against three defendants. Two of the defendants, R.R. and Robert Waldo, filed a motion for summary judgment. After the hearing on the motion, the court sent a letter to both sides announcing that the defendants’ motion for summary judgment would be granted. Id. at 361. Thereafter, the plaintiff filed a motion for permission to take a nonsuit without prejudice as to all defendants. The court allowed the nonsuit without prejudice as to the third defendant but denied nonsuit without prejudice as to the Waldos. On appeal, the appellant argued that the rale required the nonsuit to be taken before the decision was announced which meant before the judgment was rendered. Id. at 362. The judgment had not been entered or announced in open court at the time plaintiff filed her motion for nonsuit. The appellant argued that the decision by the judge, via the mail, was not a rendition or entry of judgment, and she was not precluded from taking a nonsuit without prejudice. The court disagreed by stating that the rale provided for a nonsuit to be taken before the decision is announced. The court was of the opinion [172]*172that the decision had been announced before the plaintiff sought to take the nonsuit. Id.4
In Homeright, the defendant/appellee moved for a partial summary judgment which the court sustained, and the remaining issues were set for trial. Homeright Co. v. Exchange Warehouses, Inc., 526 S.W.2d 241, 243 (Tex.Civ.App.—Tyler 1975, writ refd n.r.e.). On the day trial was to begin, the plaintiff'appellant took a voluntary nonsuit without a final and appealable judgment being entered. Three days later, the appellant filed a new petition in another district court. The appellee was successful in transferring the case back to the original court and thereafter, filed a motion to dismiss with prejudice. Id. The court granted appellee’s motion, and appellant appealed. The appellees argued that the doctrine of res judicata applied because the trial court granted its partial summary judgment limiting liability. However, the court noted that the partial summary judgment was interlocutory, and because the appellant nonsuited its cause of action in the first suit without a severance of the other issues between' the parties, the partial summary judgement never became final and was nonappealable. Id. at 244.
In the case before us, we do not have a final summary judgment as to the entire case, as the court had in Extended Servs. The partial summary judgment at issue here merely disposed of some of the issues as did the partial summary judgment in Homeright. Moreover, authority exists which holds that a voluntary nonsuit has the effect of “wiping out any interlocutory orders made in the case.” Ault v. Mulanax, 724 S.W.2d 824, 828 (Tex.App.—Texarkana 1986, orig. proceeding). Relying on Ault, appellants suggest that a nonsuit may be used to nullify a partial or interlocutory summary judgment5 rendered prior to the filing of a nonsuit motion because the judgment is interlocutory. We agree.
In Ault, the trial court announced, after a hearing concerning the conservatorship of the children involved, that the husband would be the managing conservator. Following that ruling, the wife filed a motion for non-suit pursuant to rule 164 of the Texas Rules of Civil Procedure. Ault, 724 S.W.2d at 827. The record was clear that both sides had rested on the issue of managing conservator-ship but not as to all the other issues remaining in the case, at the time the petitioner filed her motion for a nonsuit. Thus, the court held that it could not be construed as a time when “plaintiff had introduced all of his evidence other than rebuttal evidence” as provided by the rule, and the interlocutory order appointing the husband as managing conservator was wiped out by the voluntary non-suit. Id. at 828.
Likewise in the instant case, the trial court rendered a partial or interlocutory summary judgment prior to the appellants’ filing of their nonsuit motion. Although the issues determined by the partial summary judgment are considered final and will not be further litigated at trial, the partial summary judgment is interlocutory, not appealable, and contemplates the necessity for a conventional trial to be held as to some remaining issues or parties. Martin v. First Republic Bank, 799 S.W.2d 482, 488-89 (TexApp.— Fort Worth 1990, writ denied); Texas United Ins. Co. v. Burt Ford Enters., Inc., 703 S.W.2d 828, 832 (Tex.App.—Tyler 1986, no writ); City of Houston v. Socony Mobil Oil Co., 421 S.W.2d 427, 430 (Tex.Civ.App.— Houston [1st Dist.] 1967, writ ref'd n.r.e.). We find, therefore, that the appellant’s situation is analogous to that in Ault. We agree [173]*173that the court heard all the evidence as to the issues adjudicated by the partial summary judgment, but the nonsuit was taken at a time before the appellants had introduced “all of their evidence other than rebuttal evidence”6 and before a judicial pronouncement had been made on the entire case. See Verret v. Verret, 570 S.W.2d 138, 140 (Tex.Civ.App.—Houston [1st Dist.] 1978, no writ) (party not entitled to dismiss or take nonsuit after rendition of final judgment). Furthermore, as in Homeright, the record does not indicate that the interlocutory summary judgment ever became final.
The record reflects that three days after the trial judge announced in open court that he would grant Hyundai’s partial summary judgment motion, appellants filed a motion for leave to file their third amended petition. The trial judge signed the order granting the partial summary judgment on January 8, and ten days later, he denied appellants’ motion for leave to file their third amended petition. Thereafter, the appellants filed their motion for nonsuit as to the entire case. Had the appellants moved to nonsuit only the remaining issues or had Hyundai obtained a severance, the partial summary judgment would have become final. Chase Manhattan Bank, N.A. v. Lindsay, 787 S.W.2d 51, 53 (Tex.1990); H.B. Zachry Co. v. Thibodeaux, 364 5.W.2d 192, 193 (Tex.1963); Krenek v. Texstar North America, Inc., 787 S.W.2d 566, 569 (Tex.App.—Corpus Christi 1990, writ denied). However, the record does not reflect that a severance of the issues was ever obtained.
The record does show that appellants were faced with very serious consequences because of the partial summary judgment and the denial for leave to file their amended petition. Often, in these types situations, the privilege of the nonsuit is important. For example, in Molinar v. Plains Ins. Co., 660 S.W.2d 845 (Tex.App.—Amarillo 1983, no writ), the plaintiff voluntarily took a nonsuit upon the revelation that he had assigned to a nonlitigant the right of recovery upon which he had based his cause of action. Id. at 849. The nonsuit effected a termination of those matters without an adjudication of their merits and, as to them, returned the litigants to the positions they occupied before plaintiff invoked the court’s jurisdiction. Thus, the court’s rulings on the interlocutory matters, being dependent upon the vitality of the pleaded causes of action, were nullified by his nonsuit. Also, in Orion Invs., Inc. v. Dunaway & Assocs., Inc., 760 S.W.2d 371, 373 (Tex.App.—Fort Worth 1988, writ denied), the court found that the plaintiff was not acting in bad faith because it exercised its well-established right to take a nonsuit to avoid deemed admissions.7 The court noted that a “plaintiff can hardly be expected to take a non-suit when its case is progressing in a satisfactory manner towards judgment.” Id. at 374. Moreover, a defendant cannot force a plaintiff to continue the litigation or force the plaintiff to continue the case against the plaintiffs own best interests. Progressive Ins. Companies v. Hartman, 788 S.W.2d 424, 426-27 (Tex.App.—Dallas 1990, orig. proceeding); Ex parte Helle, 477 S.W.2d 379, 384 (Tex.Civ.App.—Corpus Christi 1972, no writ); see Aetna Casualty & Surety Co. v. Specia, 849 S.W.2d 805, 807 (Tex.1993) (after nonsuit, sanction against plaintiff excluding witnesses for failure to timely supplement nullified); Sawyer v. Millard, 849 S.W.2d 808 (Tex.1993) (sanction against plaintiff for failure to timely designate expert witnesses under order granting motion to compel responses to interrogatories did not survive nonsuit).
The appellants in this case are seeking a nonsuit to avoid the effects of the [174]*174interlocutory summary judgment. As previously discussed, the plaintiffs right to a non-suit is absolute and unqualified upon timely motion as long as a claim for affirmative relief has not been made by the defendant. Progressive Ins. Companies v. Hartman, 788 S.W.2d 424, 426 (Tex.App.—Dallas 1990, orig. proceeding); see Michol O’ConnoR, O’ConnoR’s Texas Rules Civil TRial ch. 5 § 4 (1992) (if plaintiff has absolute right to nonsuit, defendant should not bother to object or file response). Hyundai made no claim for affirmative relief in this ease. Rule 162 provides that “at any time before the plaintiff has introduced all of his evidence other than rebuttal, the plaintiff may ... take a nonsuit,” and the rule is to be construed liberally in favor of that right. Tex. R.Civ.P. 162; Progressive Ins., 788 S.W.2d at 426. Because only a partial summary judgment was granted, appellants had not introduced all of their evidence prior to taking the nonsuit. Even if rule 162 does not apply to summary judgments, there was no judicial pronouncement as to the entire case before the appellants filed their motion for nonsuit. See Verret v. Verret, 570 S.W.2d 138, 140 (Tex.Civ.App.—Houston [1st Dist.] 1978, no writ) (party not entitled to dismiss or take nonsuit after rendition of final judgment); Corder v. Corder, 189 S.W.2d 100, 102 (Tex.Civ.App.—El Paso 1945, writ ref'd) (“before decision is announced” means before judgment rendered; plaintiff had right to nonsuit before judge could finish sentence to announce judgment on entire case); Texarkana Bus Co., Inc. v. Moton, 147 S.W.2d 517, 518 (Tex.Civ.App.—Eastland 1941, no writ) (plaintiff could not take nonsuit after whole suit determined against plaintiff). Therefore, under either analysis, the motion was timely.
Upon timely motion, the nonsuit is effective at the moment it is filed and effects an immediate dismissal of the entire lawsuit. Merrill Lynch Relocation Management, Inc. v. Powell, 824 S.W.2d 804, 806 (Tex.App.— Houston [14th Dist.] 1992, orig. proceeding). Consequently, the trial judge merely performs a ministerial act in granting the non-suit.8 Shadowbrook Apartments v. Abu-Ahmad, 783 S.W.2d 210, 211 (Tex.1990); Greenberg v. Brookshire, 640 S.W.2d 870, 872 (Tex.1982). The taking of a nonsuit does not prejudice the parties from seeking the same relief in a subsequent suit. Ashpole v. Millard, 778 S.W.2d 169, 171 (Tex.App.—Houston [1st Dist.] 1989, orig. proceeding); see Aetna Casualty & Surety Co. v. Specia, 849 S.W.2d 805, 806 (Tex.1993) (subject to certain conditions, plaintiff taking nonsuit not precluded from filing subsequent suit seeking same relief); O’Brien v. Stanzel, 603 S.W.2d 826, 828 (right to nonsuit without prejudice to refiling absolute when motion timely). The nonsuit or dismissal is not an adjudica-' tion of the rights of the parties but merely places them in the position they were in as if suit had never been filed. Crofts v. Court of Civil Appeals, 362 S.W.2d 101, 103 (Tex.1962); Ashpole v. Millard, 778 S.W.2d 169, 171 (Tex.App.—Houston [1st Dist.] 1989, orig. proceeding). Moreover, once the case is dismissed voluntarily, no further action may be had in that case,9 and any further action must be taken by instituting a suit de novo unless the trial court grants a motion to reinstate.10 Id.; see Missouri Pacific R.R. [175]*175Co. v. Whitaker, 815 S.W.2d 348, 349 n. 2 (Tex.App.—Tyler 1991, orig. proceeding) (trial court retains plenary power to entertain motion for reinstatement following nonsuit).
Accordingly, we hold the appellants’ motion for nonsuit was timely. As required by rule 162, the appellants filed their motion prior to the time that they had introduced all of their evidence other than rebuttal evidence and before a judicial pronouncement had been made on the entire case. Upon a timely motion for nonsuit, the appellants’ right thereto is absolute and unqualified, and the trial court has no discretion to dismiss a part of the suit with prejudice. Therefore, the dismissal in this ease should have been without prejudice. Having so held, we need not address the remaining points of error. The judgment of the trial court is reversed and rendered.