A catalytic converter takes about 60 seconds to steal. The repair bill it leaves behind typically runs $1,000 to $3,000 — more for hybrid vehicles like the Prius, where replacement can exceed $4,000. And in most cases, the thief is three states away before you notice anything is missing.
The good news: there are real deterrents that work. And the legal landscape is shifting in ways that should make theft harder to profit from.
Which Vehicles Are Most Targeted
Thieves go where the metal is most valuable and the access is easiest. The most targeted vehicles in the U.S. as of 2025:
- Toyota Prius (2004–2009) — tops every list. Hybrid catalytic converters contain significantly more precious metal.
- Ford F-250 and F-350 — high ground clearance makes access trivially easy
- Honda Element — similar reasons
- Chevrolet Tahoe, Suburban, Silverado — popular in fleets, high clearance
- Dodge Ram 1500 — accessible undercarriage
- Lexus SUVs — high precious metal content
If you drive a Prius and park on the street, you need physical protection on your converter. This is not a theoretical risk.
Anti-Theft Options That Actually Work
Catalytic converter shields Steel plates or cages that bolt over your converter and require specialized tools to remove. They won't stop a determined thief with unlimited time, but they eliminate opportunistic theft — because thieves move on to easier targets. Brands like CatClamp, MillerCAT, and Cat Security make vehicle-specific shields. Cost: $150–$400 installed.
VIN etching or engraving Many police departments run free VIN etching events. You can also pay a shop to do it. The idea: if the converter is stamped with your VIN, scrap dealers (required to check in states with good regulations) won't buy it, and it becomes evidence if recovered. Less effective where scrap dealer laws are weak, but still worth doing.
Aftermarket alarm sensors Tilt sensors or vibration sensors wired to your alarm system. If someone gets under the car, the alarm triggers. These work best as a deterrent — they draw attention and speed matters to thieves.
Parking strategy Park in well-lit areas with good sightlines. If you have a garage, use it. When parking in public, try to back into spaces against a wall, limiting access to the undercarriage. Park near security cameras when possible.
Filing a Claim If You're Stolen From
Catalytic converter theft is generally covered under comprehensive auto insurance — not collision. That means you need comprehensive coverage on your policy, and your claim will be subject to your deductible.
Average replacement cost is often above the deductible threshold, so most victims do file. Document everything: report the theft to police immediately (you'll need the report for your claim), photograph the damage, get a repair estimate from a shop before the insurer's appraiser gets involved.
One frustration: if you're hit multiple times (it happens, especially with Prius owners), insurers sometimes raise rates or drop coverage. Talk to your insurer about whether a shield would affect your premium.
Where Legislation Stands
California AB 1740 tightened requirements on catalytic converter resale, requiring documentation of vehicle ownership for any converter sold to a recycler. Dealers must verify VINs. Violations carry fines and criminal exposure.
The federal PART Act (Preventing Auto Recycling Theft) would extend these requirements nationally, add VIN stamping requirements for new converters, and set federal criminal penalties for trafficking in stolen converters. As of late 2025, it had passed committee but had not cleared both chambers.
Other state activity: Texas, Colorado, Oregon, and Minnesota all passed restrictions on converter sales between 2022–2024. Enforcement gaps remain, especially across state lines, but the legislative trajectory is in the right direction.
What You Should Do Now
Don't wait for legislation. Get a shield installed if you drive a targeted vehicle. Get your VIN etched. Check that your insurance includes comprehensive coverage. And park smart.
For more on protecting yourself from auto-related fraud and scams, visit /avoiding-scams/.