The Ride on Red law in Pennsylvania lets you treat a red light as a stop sign when the signal’s sensor fails to detect your vehicle. It’s codified at 75 Pa.C.S. ยง 3112(c), added by Act 101 of 2016, and it applies whenever a traffic signal “is out of operation or is not functioning properly,” including inductive loop sensors that can’t register that you’re sitting there.1Pennsylvania General Assembly. Pennsylvania Consolidated Statutes Title 75 Section 3112 – Traffic-Control Signals The rule is simple in outline. Getting the steps wrong still earns you a citation.
When the Exception Actually Applies
The trigger is a malfunction, not impatience. The signal has to be either dark, broken, or unable to detect you. If the light is on a long cycle and would eventually turn green, driving through it is running a red light, not riding on red.
The most common scenario is an inductive loop sensor cut into the pavement. It generates a magnetic field, and a vehicle passing over it disturbs the field enough to tell the controller a car is waiting. Lighter vehicles sometimes don’t disturb it enough to register, and the signal never cycles for that approach.
Which Vehicles Are Covered
Every vehicle. The statute says “vehicle” without qualification, so cars, motorcycles, autocycles, bicycles (pedalcycles in Pennsylvania’s code), and horse-drawn buggies are all covered.2Commonwealth of Pennsylvania. Laws and Regulations
Practically speaking, though, the problem is almost always a lighter vehicle. A full-size car or truck will trip a working loop sensor essentially every time. Motorcyclists, cyclists, and buggy drivers are the ones who actually sit through cycle after cycle. If you’re in a standard passenger car and tell an officer or judge the sensor didn’t pick you up, expect real skepticism.
Steps You Have to Follow
The law does not let you roll through the moment you decide the light is stuck. You have to treat it like a stop sign, and you need a factual basis for concluding the signal is malfunctioning.
- Come to a complete stop at the limit line or before the crosswalk.
- Wait and watch. The statute requires you to determine the signal has failed to detect you. Watching at least one full cycle, where cross-traffic gets a green and yours never does, is strong evidence of that.
- Yield to everyone with the right of way. Pedestrians in or approaching the crosswalk go first. Cross-traffic with a green light or already in the intersection goes first. You go only when nothing conflicts.
There is no set number of seconds you have to wait. The standard is “reasonable time,” and reasonable depends on the intersection. A signal with a two-minute cycle needs more patience than one with a thirty-second cycle. If you ever have to explain your decision to a judge, “I watched two full cycles go by” carries far more weight than “I waited about twenty seconds.”
What Happens if You Get It Wrong
Misjudging costs you. If the light would have changed in another thirty seconds, you ran a red. That’s a summary offense carrying three points on your driving record.3Pennsylvania General Assembly. Vehicle Code Title 75 – Schedule of Convictions and Points The base fine for a summary traffic offense under Title 75 with no specific penalty set is $25, though court costs and surcharges push the total higher.4Pennsylvania General Assembly. Pennsylvania Code Title 75 Chapter 65 – Fines and Penalties
Cause a collision and it escalates fast. Expect a failure-to-yield citation on top, and your insurer will assign fault. Points also stack: a written warning arrives at six, and eleven or more overall puts your license at risk of suspension.
How to Defend a Citation
The best defense is evidence that the sensor genuinely failed. A dashcam is the single most useful tool. Footage showing cross-traffic cycling through green while your direction stayed red for multiple rotations is difficult to argue against. Without video, it’s your word against the officer’s.
If you have a dashcam, pull the footage off it immediately. Dashcams overwrite by default, and the clip you need can disappear in days. Before your hearing, ask the court what format it accepts for digital evidence. Some courts want files submitted in advance rather than played from a phone at the hearing.
Documenting the intersection itself helps too. If a signal routinely fails to detect smaller vehicles, prior complaints and a history of reported malfunctions support your account of what happened.
Reporting a Signal That Won’t Detect You
Report it. For signals on state-maintained roads, PennDOT’s Customer Care Center handles complaints at 1-800-FIX-ROAD (1-800-349-7623). Signals on local roads are usually maintained by the municipality, so the city or borough public works department is the right contact.
Reporting matters for two reasons. It creates a paper trail that supports any future defense at that intersection: if you reported the problem Monday and get cited there Wednesday, that report is evidence. It also puts the responsible agency on notice, which is important if a known malfunction later contributes to a crash.
Red Light Cameras
Pennsylvania allows automated red light enforcement in Philadelphia and certain other municipalities under Sections 3116 and 3117 of Title 75. If you proceed under the Ride on Red exception at a camera intersection and an automated citation arrives in the mail, the exception is still a valid defense, but you have to contest the ticket rather than pay it. The camera captures that you went through a red; it doesn’t record why. You’ll need a hearing and evidence that the sensor failed.
Camera-equipped intersections tend to be high-traffic locations with modern detection, so a sensor genuinely failing there is less plausible than at an aging rural intersection. Expect heavier scrutiny of the defense in that setting.