Rollover crashes account for a disproportionate share of vehicle deaths. In 2023 they caused 28 percent of passenger vehicle occupant fatalities, according to federal crash data. When a roof collapses or an occupant is ejected, the claim often runs against the vehicle manufacturer as well as the at-fault driver, because California treats a vehicle that fails to protect occupants in a foreseeable crash as defective.
B&D Injury Law Group handles serious auto and product liability claims across California. This article explains why rollovers happen, the federal safety standards that govern roof strength and ejection, and how a crashworthiness claim works.
How Often Rollovers Turn Fatal
The National Highway Traffic Safety Administration publishes annual crash statistics. Its most recent passenger vehicle report covering 2023 data states that a rollover crash is one of the most dangerous forms of crash among passenger vehicles, accounting for 28 percent of passenger vehicle occupant fatalities that year.
| Vehicle type | Rollover fatalities, 2023 | Share of that type’s occupant deaths |
|---|---|---|
| Pickups | 1,640 | 38% |
| SUVs | 2,307 | 33% |
| Vans | 244 | 25% |
| Passenger cars | 2,405 | 20% |
| All passenger vehicles | 6,596 | 28% |
Source: NHTSA, Traffic Safety Facts, Passenger Vehicles: 2023 Data, DOT HS 813 723, May 2025. Total rollover fatalities fell about 10 percent from 7,341 in 2022.
The pattern across vehicle types is not random. Taller vehicles with a higher center of gravity relative to their track width are more prone to roll, which is what the federal rating system measures.
Static Stability Factor and the Rollover Rating
NHTSA rates rollover resistance as part of its 5-Star Safety Ratings using a laboratory measurement combined with a driving maneuver.
The laboratory measurement is the Static Stability Factor, calculated as track width divided by twice the height of the center of gravity. A lower figure means a more top-heavy vehicle. The dynamic component is the fishhook maneuver, which simulates a panic steering input and recovery of the kind that follows dropping a wheel off the pavement edge.
The star rating expresses the risk that a vehicle will roll over if it is involved in a single-vehicle crash: five stars means less than 10 percent, four stars 10 to 20 percent, three stars 20 to 30 percent, two stars 30 to 40 percent, and one star more than 40 percent. It is not a prediction of how likely a crash is, and it is not a measure of injury severity.
The Federal Standards That Govern Rollover Protection
Roof crush resistance. This area changed recently and older articles are now out of date. The original Standard 216 was formally removed effective July 6, 2026, having been superseded. The operative standard is now FMVSS 216a, which requires a roof to withstand a force of three times the vehicle’s unloaded weight for vehicles rated at 6,000 pounds or less, and 1.5 times unloaded weight for vehicles between roughly 6,000 and 10,000 pounds. During the test the headform may not be displaced more than 127 millimeters, and no load greater than 222 newtons may reach it. Critically, 216a requires testing on both sides of the vehicle, where the original standard tested one. Full compliance has been required since the 2016 model year.
Ejection mitigation. FMVSS 226 aims to reduce complete and partial ejections through side windows in rollovers and side impacts, limiting displacement of the ejection headform to 100 millimeters. It has been fully required since September 1, 2016, and is the standard that drove universal rollover-activated side curtain airbags.
Electronic stability control. FMVSS 126 requires systems that detect and reduce loss of directional control. It has applied to all covered new light vehicles since September 1, 2011. ESC prevents many of the loss-of-control events that precede a rollover, which is a significant part of why rollover deaths have declined.
Why the Manufacturer May Be Liable
California has recognized strict product liability since Greenman v. Yuba Power Products, Inc. (1963) 59 Cal.2d 57, which held a manufacturer strictly liable in tort when an article it places on the market, knowing it will be used without inspection for defects, proves to have a defect that causes injury.
Anderson v. Owens-Corning Fiberglas Corp. (1991) 53 Cal.3d 987 identifies the three theories: manufacturing defect, design defect, and failure to warn. In rollover litigation the design defect theory does most of the work.
Barker v. Lull Engineering Co. (1978) 20 Cal.3d 413 supplies two alternative tests. Under the consumer expectation test, a product is defective if it failed to perform as safely as an ordinary consumer would expect when used in an intended or reasonably foreseeable manner. Under the risk-benefit test, a product is defective if its design proximately caused the injury and the defendant fails to establish that on balance the benefits of the design outweigh the risk of danger inherent in it.
That second test contains an advantage worth understanding. Once the plaintiff shows the design proximately caused the injury, the burden shifts to the manufacturer to justify its design choice.
Soule v. General Motors Corp. (1994) 8 Cal.4th 548 limited when the consumer expectation test may be used, and rollover cases fall on the limited side. The court observed that an ordinary consumer cannot reasonably expect that a car’s frame, suspension, or interior will remain intact in any and all accidents, and that a complex product may cause injury in ways that do not engage ordinary consumers’ reasonable minimum assumptions. Where the question turns on technical feasibility, cost and engineering trade-offs, the risk-benefit test governs. Roof structural performance is exactly that kind of question.
Crashworthiness: The Second Collision
A separate line of California authority addresses vehicles that do not cause a crash but fail to protect occupants during one. Self v. General Motors Corp. (1974) 42 Cal.App.3d 1 is the leading California case, holding that a manufacturer must foresee that accidents will occur as an incident of normal operation, must evaluate the crashworthiness of its product, and must take reasonable and practicable steps to forestall particular crash injuries and mitigate the seriousness of others. Self is a Court of Appeal decision rather than a Supreme Court holding, though its foreseeability premise rests on Cronin v. J.B.E. Olson Corp. (1972) 8 Cal.3d 121.
Two decisions apply this directly to rollovers. Doupnik v. General Motors Corp. (1990) 225 Cal.App.3d 849 involved roof crush in a threshold roll where defective A-pillar welds were a substantial factor, and with proper welds the roof would not have collapsed into the occupant space. Pannu v. Land Rover North America, Inc. (2011) 191 Cal.App.4th 1298 involved both a stability defect, where changes to track width and center of gravity height would have materially improved rollover resistance at modest cost, and a roof crush defect involving 16 to 17 inches of intrusion where reinforced pillars would have limited deformation to roughly three inches at a manufacturing cost of about $76.
Evidence in a Rollover Case
These cases are built on the vehicle itself, which makes preservation the single most important early step. Do not authorize an insurer to salvage, sell, or scrap the vehicle. Roof deformation, pillar welds, seat belt webbing marks, window glazing, and the airbag control module all carry evidence that disappears when the vehicle does.
The event data recorder can capture pre-crash speed, steering input, brake application and belt status. Seat belt webbing often bears loading marks showing whether a belt was worn and how it performed, which matters because manufacturers routinely argue that an ejected occupant was unbelted.
Also preserve the scene evidence: yaw marks, furrow marks in dirt, and the trip point where the vehicle caught. Whether a rollover was tripped by a curb or was an untripped handling event shapes which theory applies.
Deadlines
California gives two years from the date of injury for a personal injury claim under Code of Civil Procedure section 335.1, and there is no separate limitations period or general statute of repose for products claims.
The discovery rule can matter here more than in ordinary auto cases. A claim accrues when the injured person has reason to suspect an injury and some wrongful cause. In a rollover, the natural assumption is that the crash caused the injuries, and the possibility that a roof structure or restraint system performed defectively may not be apparent without expert inspection. That said, the safer course is always to have the vehicle examined promptly rather than to rely on delayed accrual.
Are SUVs and trucks more likely to roll over?
Federal data shows rollovers accounted for 38 percent of pickup occupant deaths and 33 percent of SUV occupant deaths in 2023, compared with 20 percent for passenger cars. The physical reason is a higher center of gravity relative to track width, which the Static Stability Factor measures.
Can I sue the manufacturer if my roof crushed in a rollover?
Potentially. California recognizes crashworthiness claims, and roof crush cases have succeeded where a stronger structure would have preserved occupant survival space. These claims usually proceed under the risk-benefit design defect test, where the manufacturer bears the burden of justifying its design once causation is shown.
What is FMVSS 216a?
It is the federal roof crush resistance standard, requiring a roof to withstand three times the vehicle’s unloaded weight for vehicles rated at 6,000 pounds or less, tested on both sides. It replaced the original Standard 216, which was formally removed effective July 6, 2026.
What should I do with the vehicle after a rollover?
Preserve it. Do not let the insurer salvage or dispose of it, and do not authorize repairs, until it has been inspected. The roof structure, restraints, glazing and electronic modules carry the evidence a product claim depends on.
How long do I have to file a rollover claim in California?
Generally two years from the date of injury under Code of Civil Procedure section 335.1. The same period applies to claims against a manufacturer. Because vehicle inspection takes time, it is unwise to wait.
If you or a family member was seriously hurt in a rollover, securing the vehicle should happen before anything else. Learn more about product liability claims, read about car accident cases and catastrophic injuries, or contact B&D Injury Law Group for a free consultation.
This article is provided for general informational purposes only and does not constitute legal advice. Reading it does not create an attorney-client relationship. Every case is different and past results do not guarantee a similar outcome. If you have been injured, speak with a licensed attorney about your specific situation.