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How do you reset fuel safety switch on a 2000 oldsmobile alero?

There's no single "fuel safety switch" in the way some older vehicles had a readily accessible cutoff switch. The Oldsmobile Alero's fuel system safety is integrated into various components and controlled by the car's computer system. There's no user-accessible reset button or switch.

If you're experiencing a problem where the car won't start and you suspect a fuel-related safety issue, it's not a simple reset. Here's what to check:

* Fuel Pump: The most likely culprit is a faulty fuel pump or a problem with the fuel pump relay. A mechanic can check the fuel pump's operation and test the relay.

* Fuel Pressure: Low fuel pressure can prevent the engine from starting. A mechanic needs a fuel pressure gauge to diagnose this.

* Inertia Switch (Crash Sensor): Some older vehicles have an inertia switch that cuts power to the fuel pump in a collision. While the Alero likely has a similar crash sensor system integrated into the computer, it's not something you can manually reset.

* Computer System Issues: A problem with the car's computer system (PCM/ECM) could prevent it from sending the signal to turn on the fuel pump, even if the pump itself is functioning correctly. This requires diagnostic tools.

* Security System: The Alero's anti-theft system could be interfering. Try checking your key fob battery and ensuring the car is fully unlocked.

* Other Electrical Problems: Faulty wiring, blown fuses or other electrical issues can prevent the fuel system from functioning correctly.

In short: Instead of trying to find a "reset switch" which doesn't exist, you should have a qualified mechanic diagnose the problem. Trying to troubleshoot fuel system issues without proper knowledge and tools can be dangerous. Incorrectly messing with the fuel system can lead to fire hazards.