1. Oil pressure warning light:
[Image: Oil Pressure Warning Light](https://i.imgur.com/5Qz5xZv.png)
This light comes on when the oil pressure in the engine is too low. It can be caused by a number of problems, including:
- Low oil level
- Oil pump failure
- Oil filter clogged
- Internal engine damage
2. Coolant temperature warning light:
[Image: Coolant Temperature Warning Light](https://i.imgur.com/a0P75jN.png)
This light comes on when the coolant temperature in the engine is too high. It can be caused by a number of problems, including:
- Low coolant level
- Coolant leak
- Thermostat failure
- Water pump failure
3. Brake system warning light:
[Image: Brake System Warning Light](https://i.imgur.com/5rQ51xQ.png)
This light comes on when there is a problem with the brake system. It can be caused by a number of problems, including:
- Low brake fluid level
- Brake pad wear
- Brake rotor damage
- Brake caliper failure
4. ABS warning light:
[Image: ABS Warning Light](https://i.imgur.com/w0258aE.png)
This light comes on when the anti-lock braking system (ABS) is not working properly. It can be caused by a number of problems, including:
- ABS sensor failure
- ABS module failure
- Electrical connection problems
5. Check engine light:
[Image: Check Engine Light](https://i.imgur.com/r258j1Z.png)
This light can come on for a variety of reasons, including:
- Engine misfire
- Fuel system problem
- Emissions system problem
- Oxygen sensor failure
- Catalytic converter failure
6. Airbag warning light:
[Image: Airbag Warning Light](https://i.imgur.com/005j2xV.png)
This light comes on when there is a problem with the airbag system. It can be caused by a number of problems, including:
- Airbag sensor failure
- Airbag module failure
- Electrical connection problems
7. Immobilizer warning light:
[Image: Immobilizer Warning Light](https://i.imgur.com/j5Qz5xL.png)
This light comes on when the immobilizer system is not working properly. The immobilizer system prevents the car from being started without the correct key. It can be caused by a number of problems, including:
- Key fob battery dead
- Key fob damaged
- Immobilizer module failure
8. Tire pressure warning light:
[Image: Tire Pressure Warning Light](https://i.imgur.com/x5Qz5xZ.png)
This light comes on when the tire pressure in one or more of the tires is too low. It can be caused by a number of problems, including:
- Slow leak in a tire
- Punctured tire
- Tire pressure sensor failure
These are just some of the most common warning lights that you may see on a 2001 Beetle. If you see any of these lights come on, it is important to have the car checked out by a qualified mechanic as soon as possible.
