OPINION
This is a products liability case. Marilyn Glyn-Jones sued The Firestone Tire & Rubber Company and others for personal injuries sustained in an automobile accident. Her husband and son asserted derivative claims for loss of consortium. 2 Glyn-Jones alleged that her injuries were caused, in part, by a defective seat belt system installed in her car. Firestone moved for summary judgment based on a statute that prohibits any evidence of the use or nonuse of a safety belt in a civil trial. The trial court granted Firestone’s motion for summary judgment. Glyn-Jones appeals. We affirm in part and reverse in part.
FACTUAL BACKGROUND
Glyn-Jones was injured when her 1982 Ford Escort was struck by a car driven by John Hamilton. She was thrown about her vehicle upon impact. Glyn-Jones contends that the seat belt and shoulder harness restraint system in her automobile were defective and contributed to the severity of her injuries.
Glyn-Jones sued Hamilton and the City of Dallas for negligence. She also sued Ford Motor Company, Champion Motor Sales, and Firestone for breach of warranty and various products liability theories. 3 Glyn-Jones alleged that her vehicle was not crashworthy because the restraint system failed to prevent her from being thrown about the car. Glyn-Jones maintained that she was wearing her seat belt at the time of the collision. The defendants disputed this allegation.
In support of the motion for summary judgment, Firestone relied on article 6701d, section 107C(j) of the Texas Revised Civil Statutes, which prohibits any evidence of the use or nonuse of a safety belt in a civil trial. Since the statute prohibited Glyn-Jones from proving that she was using her seat belt at the time of the accident, and she could not prove that her injuries were caused by a defective restraint system, Firestone maintained that it was entitled to judgment as a matter of law. The trial court granted summary judgment in favor of Firestone and severed the claims against the remaining defendants.
*642 Glyn-Jones challenges the application and constitutionality of section 107C(j). First, she contends that the prohibition against the use of seat belt evidence does not apply to products liability cases involving the crashworthiness of an automobile. Alternatively, she argues that the statute violates the open courts provision of the Texas Constitution.
APPLICATION OF SECTION 107C(j)
Glyn-Jones contends that section 107C(j) should hot prevent her products liability claim against Firestone. She acknowledges that the plain language of the statute prohibits any evidence of the use or nonuse of a safety belt in a civil trial, but urges that we create a judicial exception in crashworthiness cases.
1. Statutory Construction
Courts are responsible for truly and fairly interpreting written law.
Simmons v. Arnim,
2. Seat Belt Statute
The Texas Legislature enacted a mandatory seat belt law in 1985. Tex.Rev.Civ. Stat.Ann. art. 6701d, § 107C (Vernon Supp. 1992). Subsection (j) of the statute pre-eludes the seat belt defense in the trial of a civil case. Specifically, the applicable statutory provision states that “[u]se or nonuse of a safety belt is not admissible evidence in a civil trial.” Tex.Rev.Civ.Stat.Ann. art. 6701d § 107C(j) (Vernon Supp. 1992).
3.Application of Law to the Facts
The language of section 107C(j) is clear and unambiguous. The statute does not differentiate between negligence actions and products liability cases. Rather, the legislature has created a blanket prohibition against the use of seat belt evidence in
all
civil trials. We must interpret the statute as written and seek the intent of the legislature as found in the plain and common meaning of the words and terms used.
Moreno,
OPEN COURTS DOCTRINE
Glyn-Jones next contends that section 107C(j) violates the open courts provision of the Texas Constitution. She argues that a strict application of the statute effectively eliminates her common-law cause of action against Firestone on a crashworthiness theory. Glyn-Jones maintains that this restriction is unreasonable and violates her due process rights guaranteed under article I, section 13, of the Texas Constitution.
1. Standard of Review
Statutes are presumed to be valid.
Sax v. Votteler,
2. Open Courts Provision
Article I, section 13 of the Texas Constitution provides, in pertinent part:
All courts shall be open, and every person for an injury done him, in his lands, goods, person or reputation, shall have remedy by due course of law.
Tex. Const, art. I, § 13. This constitutional provision is a facet of due process.
Stout v. Grand Prairie Indep. Sch. Dist.,
The supreme court has established a two-part test for evaluating a challenge under the open courts provision. First, the statute must restrict a well-recognized common-law cause of action.
Moreno,
3. Application of Law to the Facts
Crashworthiness cases involve a form of design defect. The design defect can be anything that compromises the safety of the vehicle as a whole. Crashworthiness cases differ from other design defect cases, however, because there is no causal connection between the defect and the accident. The seller or manufacturer of the vehicle is liable only for those additional or enhanced injuries that would not have occurred but for the defect.
See Duncan v. Cessna Aircraft Co.,
The right to sue on a crashworthiness theory was originally advanced by the Eighth Circuit in
Larsen v. General Motors Corp.,
We must now determine whether the restriction imposed by section 107C(j) is unreasonable and arbitrary when balanced against the purposes and basis of the statute.
See Lucas,
We conclude that the restriction imposed by section 107C(j) is arbitrary and unrea *644 sonable insofar as it prohibits the introduction of seat belt evidence in a crashworthiness case. Further, the statute unreasonably denies Glyn-Jones and others similarly situated redress for their injuries. We, therefore, hold that section 107C(j) violates the open courts provision of the Texas Constitution.
BREACH OF WARRANTY CLAIM
The trial court granted Firestone’s motion for partial summary judgment on the breach of warranty claim. This partial summary judgment was incorporated in the final summary judgment. Glyn-Jones does not challenge this ruling on appeal. We therefore affirm the trial court’s order granting a partial summary judgment on the breach of warranty claim.
See Guion v. Guion,
CONCLUSION
We sustain Glyn-Jones’ sole point of error. We reverse that portion of the trial court’s judgment pertaining to the products liability claims asserted by Glyn-Jones. The judgment is affirmed in all other respects. This cause, is remanded to the trial court for further proceedings consistent with this opinion.
Notes
. David Glyn-Jones and Jason Glyn-Jones were parties to this case in the trial court. David Glyn-Jones died after the trial court rendered judgment but before the case was disposed of on appeal. We will proceed to adjudicate the merits of this appeal and render judgment as if all parties thereto were living. See Tex.R.App.P. 9(a).
.Ford Motor Company designed and manufactured the automobile driven by Glyn-Jones. Auto Ventures, Inc., d/b/a Champion Motor Sales, Inc. sold the vehicle to Glyn-Jones. Bridgestone/Firestone, Inc. f/k/a The Firestone Tire & Rubber Company manufactured the seat belt and shoulder harness restraint system installed in the car.
. Since the enactment of section 107C(j), two appellate courts have decided crashworthiness cases involving defective seat belts.
Guentzel
v.
Toyota Motor Corp.,
