Sounds like the alternater is on it's way. I will add something to this. I messed with a couple of alternator replacements but the last time the warning lights started coming on, I pulled the plug out of the alternator and gave the contacts a good cleaning both on the wiring harness plug and the socket of the alternator. You don't have to pull the alt to do this (at least on the '90s pickup) although it is hard to get that dude out of there. Anyway, no more problems. Actually, I have found on Toyota and Nissan both that anytime a warning light comes on it is very prudent to disconnect the suspected part (sensor, sender etc.) and make sure those contacts are clean. This has saved me buying and replacing a Nissan alt, a Toyota A/C compressor and a couple of O2 sensors on my personal vehicles and the advice has saved a few friends some expensive repairs too. Definitely worth the cost of some contact cleaner from Radio Shack or the parts store and the little labor to disconnect and clean the connectors.
Most of the light on the dashboard are Warning Lights; different warning lights that might flash up on the dashboard. Some of the more common warning lights are shown below. 1 = Oil pressure warning light 2 = Battery charge warning light 3 = Brake system warning light 4 = Engine warning light
Wrong alternator or new alternator is bad. no resetting needed
If the car/truck is running, it will not make a difference. However, if there was an electrical short on one of the wires that leads back to the brake lights, it might slowly draw power while the engine is off.
the plug behind the battery might be unplugged or that same plug is disconnected from the fuse box
on the brake pedal under the dash is a brake light switch. that when you depress the brake it turns your lights on. you might wanna check that
check your fusible link, its connected to your positive battery cable,check for burnt marks or it might be swollen.
The brake lights will stay on if the switch is either out of adjustment or damaged. Pull up on the brake pedal to see if it will go out, if it does, you might be able to get by just adjusting the position of the brake light switch. BTW, it's on the brake pedal mechanism, under the dashboard.
Bad brake light switch
you drain your battery when you leave your lights on
Either battery or alternator going bad, Advance Auto, or Auto Zone can check this for you! This happened to my truck, but my memory is not to good! More likely the alternator. yeah this happened to me on the freeway, i figured the computer needed to be reset but when the brake and battery lights go on, the alternator is going bad and you might have a half day of driving before it drains your battery
check your ground wires...they might be loose or detached.
check the brake light switch it might be sticking. located under the dash connected to the brake pedal
If your parking lights are on and your left brake light doesn't work, the brake may have burnt out. You might also have a wiring problem.
Check the brake light switch ,on the brake pedal. Might need adjusting.
Uh...I would first check to make sure your bulbs are not blown. check brake light fuse. If still no trace wiring fro brake lights back. Hope this helps. You might also check the brake light switch on brake pedal.
bad switch on brake pedal? do you have brake lights?
Are you talking about ALL the lights, or just the dash lights? If it is just the dash lights, you might have a bad ground for the dash electronics, or bad connection at the Dash Dimmer control. But if you are talking about headlights, too, check the gound wires on the battery... perhaps wiggle them around until the lights flash. The brake light switch should not do this. It only controls the back lights. if its only the dash lights lighting up when you hit the brake, check the brake bulbs and make sure that they are the correct bulbs. (dual filament) and that the base of the bulbs contacts arent touching
Take a hammer to the tail lights then they will shut off but you might have to get them replaced or somting The tail lights you see may actually be the brake lights stuck on because of a faulty or out of adjustment brake light switch.
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.
Have you gone to a macanic because the wires on the tail lights might have blown.
If parking lights and dash lights are not working and fuse blows out, there might be a problem with battery corrosion. Check the components specific to the circuits of the affected lights. It might be loose.
You might be out of brake fluid. Our rear wheel cylinder was leaking and ran ours out of fluid and the light came on.
if the battery is in good condition and the lights are standard then 3 hours might be enough so it will not be able to restart itself but this may vary according to battery size condition and lights wattage.
Just check your brake lite switch which is located at the brake pedal the switch might be broken that is why your brake lite is always on.
well if you have allready cheaked the brake fuse it could be that the bulbs have burnt out check that.......As for me we tried to go the easy way with installing a toggle switch and manually turning them off and on, but today the wires melted completely from the battery to the brake lights themself, as of tomorrow we are going to buy a brake light switch and install it. I was told that is what is causing all of this trouble. I hope I helped.