Hi, my 1999 Alero does not unlock when I use my key fob remotes. Neither of the two work. I would like to delete the immobilizer, how would that happen? Would I only need a OBD scanner or is soldering the only option? I can't get new keys because I live in Europe (they would cost too much). Any advice is much appreciated.
That's a frustrating problem, but it's a common issue with GM cars from that era. I can definitely help clear this up and give you some advice.
Key Fobs vs. The Immobilizer:
First, it's important to know that the key fobs and the immobilizer system are two separate things.
- Your key fobs are for the keyless entry system—they just lock and unlock the doors. If they aren't working, it has nothing to do with whether the car will start or not.
- The immobilizer (Passlock) is the anti-theft system. It's built into the ignition and the car's computer. It only prevents the engine from starting if it doesn't recognize the correct key.
Since your car still starts with the key, your immobilizer system is working just fine. The problem is with the key fobs, so you don't need to worry about deleting the immobilizer.
Why You Shouldn't Delete the Immobilizer:
Trying to delete the immobilizer is an extreme and risky measure. It's usually only done by mechanics for things like engine swaps. You can't just do it with a simple scanner or by soldering something. It's a complicated process that can cause a lot of problems if not done correctly.
What You Should Do Instead:
Given the cost of new keys and remotes in Europe, here are the best steps to take:
- Reprogram Your Existing Fobs: Many cars from this time have a built-in procedure to reprogram the fobs without any special equipment. Search online for "1999 Oldsmobile Alero key fob programming instructions." This is the easiest and most likely fix.
- Find a Local Automotive Locksmith: If reprogramming doesn't work, don't go to the dealership. Instead, find a locksmith that specializes in car keys. They often have the necessary equipment to program a new key or fob for much less money than a dealership would charge.
Hope this helps you save time and money.
