States put speed-limiting devices in reckless drivers’ cars

We’ve all seen it. You’re driving down the highway when someone flies past you at a ridiculous speed. Maybe they’re weaving through traffic while everyone else tries to stay out of their way. Now, states are turning to speed-limiting devices that could stop some of the most dangerous drivers from doing it again.

Virginia has already started installing GPS-powered devices in vehicles used by certain reckless-driving offenders. Washington, D.C., has a similar program, and more jurisdictions are exploring the technology. The idea sounds promising. Instead of simply telling someone to slow down, the device can actually restrict how fast their car accelerates.

However, there’s a catch. Some drivers using these systems have reported GPS glitches that mistakenly apply the speed limits of nearby roads. And that raises a question worth asking. What happens when your car refuses to accelerate because its GPS thinks you’re somewhere else?

Credit: LifeSafer ISA

How speed-limiting devices stop reckless drivers

The technology is called Intelligent Speed Assistance (ISA). It uses GPS location information and digital maps to determine the posted speed limit. Here’s how it works. Let’s say you’re traveling on a road with a 45 mph speed limit. As your vehicle reaches 45 mph, the device restricts additional acceleration. Pressing harder on the gas pedal won’t normally make the car accelerate beyond that limit.

However, the system doesn’t automatically slam on the brakes or shut off the engine. Instead, it limits the vehicle’s ability to accelerate. That means a vehicle traveling downhill could still exceed the posted limit because of gravity.

Some systems also allow brief overrides when additional acceleration is necessary for safety. Think of it as a speed governor that automatically adjusts as you move between roads. The important difference comes down to control. Many newer vehicles already recognize speed limits and warn drivers when they’re going too fast. These aftermarket devices take things further by restricting acceleration.

Virginia is already putting speed limiters in cars

Virginia launched its Intelligent Speed Assistance Program on July 1, 2026. The state allows courts to require speed-limiting technology for certain driving offenses, including reckless driving and racing. The Virginia DMV can also require participation in qualifying cases involving excessive demerit points. For eligible drivers, the program offers a way to maintain restricted driving privileges rather than face a full license suspension. According to a November 2 report, approximately 100 devices had been installed in Virginia since July. Many participants faced reckless-driving charges or convictions. Some cases involved speeds exceeding 100 mph.

The restrictions are serious. Qualifying drivers may need the equipment installed in every vehicle they own or co-own. They must also comply with restrictions on which vehicles they can operate. Then there’s the cost. Participants generally pay installation and ongoing service fees, although financial assistance may be available for those who qualify. The goal is to let certain drivers continue essential travel while reducing the risk of dangerous speeding.

More states are moving toward speed-limiting technology

Virginia has company in exploring this approach. Washington, D.C. launched its Intelligent Speed Assistance Program on October 1, 2025. Under the program, D.C. driver’s license holders convicted of aggravated reckless driving must enroll and operate only authorized vehicles equipped with the technology.

Washington state passed legislation in 2025 requiring speed-limiting devices in certain cases involving dangerous speeding and driving restrictions. However, those requirements won’t take effect until January 1, 2029. Meanwhile, New York City is considering a proposal introduced on October 22, 2026. It would require vehicle owners who accumulate 16 school-zone speeding violations within 12 months to install speed-limiting devices. The New York City proposal remains in committee and has not become law. These programs differ in scope. Still, they show how policymakers are increasingly considering technology as a response to dangerous driving.

Credit: LifeSafer ISA

GPS glitches are raising serious safety concerns

Now, here’s where I start getting concerned. GPS technology is incredibly useful. But anyone who’s followed navigation directions onto the wrong road knows it can make mistakes. Consider this situation. You’re driving on a highway with a 65 mph speed limit. A service road running alongside it has a 35 mph limit. If your GPS mistakenly places you on the service road, the speed limiter could apply the lower limit. Suddenly, your vehicle may refuse to accelerate normally, even though you’re traveling on the highway. That’s the type of GPS problem some Virginia participants have reported.

Early users reportedly experienced situations where their devices applied lower limits from nearby roads. Officials acknowledged the complaints and said they were working on fixes. To be clear, the reports establish that location errors have occurred. They do not establish a pattern of crashes caused by those errors. Still, imagine needing additional acceleration while merging into traffic, only to discover that your vehicle won’t respond as expected. That’s a potential safety concern officials need to address before these systems become more widespread.

Can drivers override a speed limiter in an emergency?

Some systems provide temporary overrides when drivers need additional acceleration. Virginia’s proposed technical standards spell out how those overrides would work. Under the proposal, an override would last no longer than 30 seconds. It would also allow a maximum of 5 mph above the posted limit, with no more than two overrides per driving cycle.

Those specifications appear in regulations published October 19, 2026. The rules remain proposed, with public comments accepted through December 18. The limits are intended to balance safety with the program’s goal of preventing excessive speeding. However, they also show that an emergency override may provide much less acceleration than a driver expects. That’s why clear instructions and reliable operation are so important.

Why officials believe speed limiters could save lives

There’s a serious reason states are considering these devices. According to the National Highway Traffic Safety Administration, 11,288 people died in speeding-related traffic crashes in 2024. Speeding contributed to 29% of all U.S. traffic fatalities that year. Those numbers help explain why officials want something more effective than another speeding ticket.

A driver who repeatedly ignores speed limits may continue taking risks after paying fines. And suspending someone’s license doesn’t physically prevent that person from getting behind the wheel. Speed-limiting technology offers another option. A properly functioning device can prevent certain excessive speeds while allowing qualifying drivers to continue traveling to work or handling essential responsibilities.

However, speed limits tell only part of the safety story. Someone can drive recklessly without exceeding the posted limit. Following too closely can still cause a crash. Bad weather can also make a legally permitted speed dangerous. So, these devices may help reduce extreme speeding, but they cannot guarantee safe driving.

Credit: LifeSafer ISA

Could speed limiters eventually be required in every car?

That’s the bigger question. For now, these enforcement programs focus on drivers who meet specific legal criteria. There is no nationwide requirement forcing every U.S. driver to install one of these aftermarket speed-limiting devices. However, many newer vehicles already offer speed-limit recognition and warnings. That means some of the technology has become familiar to drivers.

The bigger step involves allowing software to actively restrict acceleration. As more jurisdictions test these programs, lawmakers could consider expanding eligibility. But any expansion would require additional policy decisions. And public acceptance could become a major obstacle.. After all, there’s a big difference between your dashboard warning you that you’re speeding and your car preventing you from accelerating.

Speed-limiting devices also raise privacy questions

There’s another issue I think deserves more attention. What happens to all the driving information these systems collect? GPS-based speed limiters need location data to determine which speed limit applies. Depending on the program, they may also record speeding events and other information used to monitor compliance.

Virginia’s proposed regulations would require service providers to report certain vehicle events and speed violations, including GPS locations. The proposal also contains a significant additional requirement. Beginning July 1, 2027, new installations would need cameras capable of photographing the driver’s seat when the device records a speeding event, if the proposed rules take effect as written.

That raises questions about who can access the information and how long it remains stored. We explored some similar privacy concerns in our CyberGuy article, Your insurer wants to track your driving. Is the discount worth it?. Insurance tracking programs serve a different purpose. However, both technologies show how much information connected vehicles can generate about the people driving them. And once that information exists, clear rules about its collection and use become especially important.

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Kurt’s key takeaways

I understand why states want to take this approach. We’ve all shared the road with someone driving so recklessly that you wonder how they still have a license. And if technology can prevent someone from driving 100 mph through traffic, I see the appeal. What concerns me is putting that much authority in the hands of a GPS system that can make mistakes. I’ve seen enough technology glitches over the years to know that even sophisticated systems sometimes get things wrong. That’s inconvenient when your phone sends you to the wrong address. It’s a much bigger concern when you’re behind the wheel. I also think states need to be careful about how they expand these programs. Targeting repeat dangerous drivers makes sense. Requiring everyone to surrender control of their vehicle would raise a very different set of questions. Before we go further, I’d like to see stronger evidence that these devices reduce crashes without creating new safety problems. Because ultimately, the goal should be safer roads. And that means making sure the technology earns our trust before we depend on it.

Would you feel safer knowing reckless drivers have speed limiters in their cars, or does the idea of a GPS system controlling your accelerator worry you even more? Let us know your thoughts in the comments below. 

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