If your GM doesn’t start or if it starts, runs for a second or two, and then stalls, you’re most likely fighting a failing VATS, Passkey or Passlock security system that is shutting off your fuel injectors. This is one of the most common age‑related failures on GM cars and trucks from the mid‑1980s through today.
Engine starts, then dies after 1–2 seconds, especially when the security light is on or flashing.
“Service Theft Deterrent” or “Security” message showing in the cluster, either steady or intermittent.
Temporary 10‑minute or 30‑minute relearn procedures sometimes get it going again, but the problem keeps coming back.
You might have already tried the ignition switch, key, or battery but it still starts then stalls.
Multiple random no‑start incidents that seem to be getting worse over time.
If one or more of these sound like your car, your factory security system is failing – not your starter or fuel pump – and it will keep acting up until you bypass it.
Luke is the electrical engineer who got tired of his own 95 LeSabre refusing to start because of Passkey and built a full bypass that worked so well it’s now used by more than 1,200 shops across North America.
When his own car kept dying from security shutdowns, he didn’t accept a dealer bill or a cheap resistor trick. He traced the signals, understood the failure, and engineered a module that bypasses the key, the lock sensor and the weak Theft Deterrent Module output—a full bypass, not a half measure.
That prototype became the PRO Module. Over the years, it’s been refined through thousands of installs and now works across hundreds of GM models from the 1980s through today.
If your GM is doing the same thing his did—starting then dying from security—you’re exactly who this module was built for.
DIY owners and shops use the PRO Module when they’re done wasting time on temporary resets and parts that don’t last.
Here’s what they’re seeing after the install.
"Thank you NEWROCKIES! Our 94 Oldsmobile Cutlass Supreme is running great now. A million Thanks!"
"It works! 1 hour to install. No more passlock light!"
"Thanks Again Guys!!!!!!! My van runs like a champ again without any issues starting or staying running."
"This product gave me back the confidence in my car that it will run and that the bypassed security system won't leave me stranded. I highly recommend it. Instructions were spot on and it works."
"Installed mine over the weekend into our 2003 Corvette. We fought the starting, guessing game for over a year. So far the NEWROCKIES installation is working like a charm! It's nice to put your key in and hear the engine turn over!!"
Your GM’s security system (VATS, Passkey, or Passlock) is designed to shut off your fuel injectors if it thinks your key is wrong.
The system has just three parts: the key, the lock sensor, and the Theft Deterrent Module (TDM). Over 7–10 years, any one of these can age out, misread the signal, and trigger a shutdown. That’s why your car starts for a second or two, then the injectors cut off and the engine dies.
Most “quick fixes” like resistor bypasses or key-only tricks try to trick the key signal, but they still depend on the original Theft Deterrent Module to send the “go” signal to your engine’s computer. If that module is failing—which it often is—the bypass doesn’t work, or only works for a few days before the shutdown comes back.
The NEWROCKIES PRO Module is different. Instead of depending on the failing module, it sends the correct enable signal directly to your engine’s computer (PCM), bypassing the weak Theft Deterrent Module entirely. That’s why once the PRO Module is installed, the original immobilizer can often be ignored or removed—and your car just starts.
Choose the only solution that is Permanent, Reliable and Unconditionally Guaranteed
Very easy to wire it in, once the factory module is located – and we’ll help you in that!
No more distress, once and for all. Enjoy your car starting every time… Again!
The NEWROCKIES PRO Module is all you need to save your car.
Peace of mind, Always in time and Safely back home!
You’ve seen how the NEWROCKIES PRO Module fixes the same security failures your vehicle is having, and why quick resistor tricks don’t last. At this point you don’t need another temporary reset, you need your car to start every time, without wondering if today’s the day it leaves you stranded.
