Liability Includes Serious Injury in the Fourth Department: Monette v Trummer

Monette v Trummer, 2012 NY Slip Op 04854 (4th Dept. 2012)

Key Takeaways

• In the Fourth Department, “liability” in an auto case includes the serious injury question under Insurance Law § 5102(d) (Ruzycki v Baker, 301 AD2d 48).
• A partial summary judgment order on “liability” that reserves the 5102(d) issue is, in the Fourth Department’s view, really only a finding of negligence.
• To obtain a true liability finding there, a plaintiff must establish negligence, proximate cause, and a serious injury within the meaning of § 5102(d).
• The label is not academic — it affects what remains for trial and when prejudgment interest arguably begins to run under CPLR 5002.

Does this mean the interest clock does start ticking on an MSJ victory unless Plaintiff can prove that (1) Defendant was negligent, (2) the negligence was the sole proximate cause and that (3) the no-fault limitation has been breached?

There is something in that Rochester water. It is a nice to be a Defendant in the 4th Department. Perhaps, plaintiffs can bring more actions in the Syracuse City Court and Buffalo City Court?

The Decision

“Plaintiffs moved for, inter alia, partial summary judgment on the issues of “liability” and serious injury. We note at the outset, however, that this Court has determined that the issue of liability “includes the issue of serious injury’ ” (Ruzycki v Baker, 301 AD2d 48, 52). Although Supreme Court in an earlier order, from which no appeal was taken, purported to grant the motion insofar as it sought partial summary judgment on the issue of “liability” with respect to Trummer and Jesse Ball but reserved decision on the issue whether plaintiff sustained a serious injury within the meaning of Insurance Law § 5102 (d), the court actually granted the motion only insofar as it sought partial summary judgment on the issue of negligence rather than liability (see id.).”

The Legal Framework: Negligence, Liability, and the 5102(d) Gate

Article 51 of the Insurance Law — New York’s no-fault scheme — strikes a bargain. Persons injured in motor vehicle accidents receive first-party benefits for basic economic loss without regard to fault. In exchange, Insurance Law § 5104 bars a lawsuit for non-economic loss (pain and suffering) unless the plaintiff sustained a “serious injury” as defined in § 5102(d). The statutory categories include, among others, fracture, significant disfigurement, permanent loss of use, permanent consequential limitation, and significant limitation of use of a body function or system.

That threshold is not a damages issue tacked on at the end of a case. It is a gatekeeping element of the cause of action itself in an auto tort case. A defendant who drove carelessly still wins outright if the plaintiff cannot clear the 5102(d) bar.

The question Monette answers is one of labels with consequences. When a plaintiff moves for “partial summary judgment on liability,” does winning that motion resolve only the defendant’s negligence, or does it also resolve the threshold? The Fourth Department, following its own precedent in Ruzycki v Baker, holds that “liability” includes serious injury. An order that grants “liability” but expressly reserves the 5102(d) question has, by definition, granted only negligence — no matter what the order says on its face.

Why the Label Matters

Prejudgment interest. Under CPLR 5002, interest accrues from the date liability is established, even where damages are decided later. If “liability” includes the threshold, a negligence-only summary judgment order arguably does not start the interest clock — the plaintiff must also nail down serious injury and causation before interest begins to run. That is real money in a case that sits for years between motion practice and a damages trial.

What remains for trial. A plaintiff who reads a “liability” grant broadly may show up to a damages trial expecting to prove only the amount of loss, and instead find the carrier’s counsel armed with a threshold defense — IME findings, gaps in treatment, and degeneration arguments — still very much alive.

Motion strategy. In the Fourth Department, a plaintiff seeking a clean liability win must support the motion with competent medical proof of a 5102(d) injury causally related to the accident — the showing that routinely draws battles over causation and pre-existing conditions.

Practice Pointers

• Plaintiffs: if you move for summary judgment in a Fourth Department auto case, decide up front whether you are moving on negligence or on liability, and build the medical record accordingly. Do not call a negligence motion a “liability” motion.
• Defendants and carriers: scrutinize any prior order granting “liability.” Under Monette and Ruzycki, a reservation of the serious injury issue means the threshold defense survives — preserve it in the pretrial order and at trial.
• Both sides: when settling or computing exposure, run the CPLR 5002 interest calculation under both readings of the order. The difference can drive settlement value.
• Note that for Article 51 actions commenced on or after the effective date of New York’s May 27, 2026 auto tort reform (S9008-C/A10008-C, Part EE), the Legislature eliminated the 90/180-day serious-injury category and added a greater-than-50% comparative fault bar — see our analysis of the 2026 reform. The negligence-versus-liability distinction Monette draws becomes even more consequential when a fault percentage can extinguish the claim.

Frequently Asked Questions

What is a “serious injury” under Insurance Law 5102(d)?

It is the statutory threshold an injured person must meet to sue for pain and suffering after a New York motor vehicle accident. The definition lists specific categories — fracture, significant disfigurement, permanent consequential limitation, and significant limitation of use, among others. Without a qualifying injury, the suit for non-economic loss is barred by Insurance Law § 5104.

Is winning summary judgment on negligence the same as winning on liability?

Not in the Fourth Department. Under Ruzycki v Baker and Monette v Trummer, “liability” includes the serious injury question. An order granting “liability” while reserving the 5102(d) issue is treated as a grant on negligence only, and the threshold defense remains live for trial.

When does prejudgment interest start in a New York personal injury case?

Under CPLR 5002, interest runs from the date liability is established through entry of judgment. Where the serious injury threshold is part of liability, a negligence-only ruling does not by itself establish liability, which can delay the start of interest.

Related Resources

• Pre-existing injuries in New York personal injury cases — cluster hub
• Understanding causation issues and procedural complexities in serious injury cases
• Critical mistakes that can destroy your 5102(d) personal injury case
• How suboptimal effort can derail NY serious injury threshold cases
• Understanding permanent consequential vs. significant limitation in serious injury law
• Browse the firm’s Legal Encyclopedia for foundational NY tort and no-fault doctrine
• Personal Injury | Long Island Car Accident Lawyer

Legal Update (February 2026): Since this 2012 post, Insurance Law § 5102(d) serious injury thresholds and related procedural requirements may have been modified through legislative amendments or regulatory updates. Additionally, Fourth Department precedent regarding liability determinations and summary judgment standards in no-fault cases may have evolved. Practitioners should verify current provisions of Insurance Law § 5102(d) and recent appellate decisions when analyzing serious injury threshold requirements.