What Is a Puffer? How Pennsylvania Drivers Can Prevent Auto Theft

A "puffer" is a car left unlocked, running, and unattended — and it is one of the easiest targets for a thief. The Pennsylvania Auto Theft Prevention Authority (ATPA) names it directly in its prevention message: lock your car and take your keys, every time. If you warm up your car in winter or cool it down in summer and walk away, you have created a puffer. The fix is simple and costs nothing: shut it off, lock it, and keep the keys with you.

Why Puffers Get Stolen So Fast

A running, unlocked car removes every obstacle a thief normally faces. There is no lock to defeat, no alarm to trigger, and no key to hot-wire — the vehicle is already on and ready to drive. According to ATPA, nearly 50% of the state's stolen cars were left unlocked by their owners, which makes unlocked vehicles the single largest preventable category of theft.

The consequences go beyond losing the car:

• Insurance costs rise for everyone. ATPA notes that when cars are stolen, insurance rates go up and the whole community pays.
• Stolen vehicles are often used in other violent crimes, affecting the neighborhood where they are taken.
• Your routine stops. Getting to work, replacing the car, and paying a deductible all take time and money.
• Identity theft risk. Mail, bills, car registration, or work files left inside make you a potential identity theft victim.
• Home access risk. House keys or a garage door opener left in the car give a thief a way into your home.

The Core Prevention Rules

ATPA's guidance comes down to a short list that applies to every driver in Pennsylvania:

1. Lock your car. Every time, even for a quick stop.
2. Take your keys. Never leave them in the ignition or hidden in the vehicle.
3. Never leave a car running unattended. This is the definition of a puffer.
4. Remove or hide valuables and sensitive documents. ATPA advises deterring thieves by removing or hiding anything worth taking, including registration, mail, and work files.
5. Do not leave spare keys, house keys, or a garage door opener in the car. These turn a car theft into a home break-in.

Which Cars Thieves Target in Pennsylvania

ATPA publishes a Top 10 stolen cars list for the state. The pattern is worth understanding: most stolen cars are older, common models, because their parts are harder to find and therefore more valuable. ATPA gives a concrete example — a car worth $3,000 is often worth $5,000 to a chop shop.

If you drive one of these, the basic rules matter even more — but the list is not a reason to relax if your car is not on it. Older, common models dominate because of parts demand, not because other cars are safe.

What ATPA Is and How It Is Funded

The Pennsylvania Auto Theft Prevention Authority is a statewide network of nearly 100 police officers, state troopers, detectives, prosecutors, paralegals, and support staff. It is governed by a board of directors and run by an executive director and a grants analyst.

Funding does not come from tax dollars. ATPA is financed by an annual assessment on nearly 300 insurance companies doing business in Pennsylvania. That money is awarded as grants to investigative and prosecutorial units and to prevention programs.

The results ATPA reports since 1994: grantees have recovered stolen vehicles and parts worth $900 million, and theft rates in Pennsylvania have dropped by more than 37%.

What to Do If You Want to Go Further

ATPA runs seasonal prevention campaigns — including a summer theft prevention push with an entry for free gas for a year — to spread the lock-your-car message. If you want to check current campaign details, stolen car data, or prevention materials, go to watchyourcar.org.

The practical takeaway does not change with the season: a puffer is a gift to a thief, and the most important prevention tool is locking your car and taking your keys.