Oil Light:
* Low Oil Level: This is the most common reason. Check your oil level using the dipstick. If it's low, add the correct type and amount of oil (consult your owner's manual). The light should go out once the level is corrected and the engine runs for a short while. There's no reset button for this; it's a sensor.
* Oil Pressure Sensor Issue: If the oil level is fine but the light remains on, there could be a problem with the oil pressure sensor or the oil pump itself. This requires professional attention. Do not drive the car. Continuing to drive with low oil pressure can severely damage your engine.
Brake Light:
* Low Brake Fluid: Check the brake fluid reservoir (usually a clear plastic container near the master cylinder under the hood). If the fluid is low, this needs to be addressed immediately. Low fluid indicates a leak somewhere in the braking system, which is a serious safety hazard. You'll need to add brake fluid (the correct type is specified in your owner's manual) and then have a mechanic diagnose and repair the leak. The light should go out once the level is corrected, but again, this doesn't solve the underlying problem.
* Brake Pad Wear: Brake wear sensors trigger the brake light. If your brake pads are worn, you need to have them replaced by a mechanic. Simply resetting the light won't fix this.
* Parking Brake Engaged: Make absolutely sure your parking brake isn't partially engaged.
* Brake Light Bulb(s) Burnt Out: Check your brake lights (both the center brake light and the two on the back) and replace any burnt-out bulbs.
In short: There's no "reset" button for these lights. The lights are indicators of a problem. Address the underlying mechanical issue, not just the light. Take your 1999 VW Beetle to a qualified mechanic if you're unsure about what's causing the lights to illuminate. Driving with these lights on is extremely risky.
