I step on brakes, dashboard light comes on which says stop.
If it comes on when you step on the brake pedal you might need to bleed your brakes. Also check your brake fluid in the master cylinder.
There's a switch on the brake pedal that when you step on it, it completes the circuit for lighting up the brake light.
Step by step procedure for replacing the high brake light, with pictures. https://picasaweb.google.com/thaalsm/ToyotaAvalonHighBrakeLightReplacement
On a 2000 GMC Jimmy, the stop light switch is typically located above the brake pedal, mounted on the brake pedal assembly. To access it, you may need to remove the plastic cover under the dashboard. The switch activates the brake lights when the brake pedal is pressed, so it’s important for proper brake light functionality. If you're experiencing issues with your brake lights, checking this switch is a good first step.
If I understand your post: The brake light is on constantly? If so, you may want to adjust or replace the brake light switch located at the top of the brake pedal.
You have a bad ground.
This site has step by step instructions (with photos), perhaps the A4 is similar. http://audidiy.blogspot.com/2010/04/how-to-replace-brake-light-bulb-on-audi.html
Traction control? its a bulb failure indicator. usually rear brake have someone first turn headlamps on make sure all bulbs are lit then have them step on brake find the dud then change it this includes third brakelight on rear window
Probably the brake light switch is bad. The brake light switch is what sends the unlock signal when you step on the brake to move the gear selector.
To replace the tail light bulb, open the tailgate and on the inside there is two little bolts. Take those out and the tail light should slide out, just turn the bulb holder and it comes out.
Yes, the 2006 Nissan Sentra has a fuse for the brake lights. It is located in the fuse box, which is typically found under the dashboard on the driver's side or in the engine compartment. If the brake lights are not functioning, checking the fuse is a good first step in troubleshooting the issue. If the fuse is intact, you may need to investigate other potential causes, such as the brake light switch or wiring.
With all lights turned off,have someone step on the brake pedal. The bulb that illuminates is the break light bulb.