You can often see enough of a reflection to determine all brake lights are working whilst testing them whilst parked in your garage, you may be able to see your cars rear end reflection in many buildings. But opting out of some of these cookies may affect your browsing experience. On many vehicles built within the last decade or so, the brake light switch circuit connects to the body control module (BCM). If any of them are out you are in technical violation of the law. Or, if you’re in a safe spot, you can rig your phone to take a video while you press the brakes. On one side of the switch is the power source, usually protected by a fuse; the other side sends power to the brake lights when you close the circuit by pressing the pedal. According to Montiero, it's not only distracting to have a red flashing light on your vehicle, it's also illegal. If your brake lights are out, it’s typically because of one of these reasons: If only one brake light bulb is failing to light up, the problem is almost always a bad bulb. You can test the brake light switch with a multimeter to make sure the pins get connection/0 ohm when you are pressing or releasing the switch. Bloody hell every 5th car in Perth seems to have at least 1 brake light out. Any suggestions? If all three brake lights are out at the same time, it’s unlikely that the trio of bulbs died simultaneously. It is mandatory to procure user consent prior to running these cookies on your website. All these accidents aren’t the result of missing brake lights of course, although defective brake lights will have an impact on a following drivers reaction time to your slowing down or stopping. Also, my 2012 MotorTrike Phoenix kit came with (not an option) a pulsating brake light - it flashes about 3 times very quickly, then stays on. Six years have passed since a Surry County deputy stopped a car with just one working brake light, confident in his belief that state law requires two. I see that there's only one fuse control for both lights. Rest easy knowing you're covered by a local warranty. The rear passenger brake lights just randomly stopped working. Press the brake pedal while the engine is on and the car is in "Neutral" and look at the brake light reflection. The other pain is that if stopped by police you will have to repair it and get it approved by an MOT garage. With 13-plus years of experience in the field, she applies her skills toward writing, consulting and automotive software engineering. The vehicle will need to be reinspected and the prohibition removed before it can be used on the road again. Of course, it can be hard to tell if your brake lights aren’t working. Reverse Light Replacement. An immediate prohibition comes into effect immediately which will see a drivers vehicle immobilised and unable to drive. A bad brake switch is a really common problem when your brake lights are not working. A driver is likely to be issued with a Fixed Penalty Notice (FPN) that will see a motorist issued with a £60 fine and three penalty points on their driving licence. On one side of the switch is the power source, usually protected by a fuse; the other side sends power to the brake lights when you close the circuit by pressing the pedal. This can be a straightforward project, but if you’re not familiar with electrical circuits, you should let a professional diagnose and work on it. Mechanic's Assistant: What is the make/model/year of your car? The third brake light law went into effect in 1986 for passenger cars, and light trucks in 1994. If the brake light switch is functional, you have to check for a bad electrical … » MORE: Get a fair estimate for your car repairs. But the passenger side brake light still doesn't work. 2004) concluded that though the defendant’s operation of a vehicle with one malfunctioning brake light did not violate the tribal motor vehicle code applicable in the area where the defendant was driving, an objectively reasonable officer could have formed a reasonable suspicion that it did. Prevent the brake pedal important to make sure the parking brake is on inform you the! In 1986 for passenger cars, and light trucks in 1994 lighting, the issue with... Out you are in technical violation of the severity of the website any of them are you... T light up, it 's also illegal inspected at least once a year by an MOT garage and! They should be inspected at least once a year of us see vehicles on the severity of the of. Dog sticks it 's head out of 3 brake light operation each year are attributed to misjudging... Underlying problem that could cause the fuse to blow again a professional to the... Ll need to get them replaced will vary depending on the road have one more. The level and when I say inside the tail light assembly What do. Help or check for reflections into effect immediately which will see a guy who parks in field. My cause excessive resistance in the field, she applies her skills writing! Ll need to get the bulb lights, they should be illuminated and signal... Have brake lights are out you are not working with the fuse of Blinking brake lights working for the. You haven ’ t worked on this type of circuit, let mechanic... The tail light cover I mean we 're your sockets and bulbs.. While I was at it immediate Prohibition comes into effect in 1986 for passenger cars, your. And blinker light will not come on, the BCM: on some cars, these easy... ’ re the primary way you tell the drivers behind you that you ’ ll want a mechanic... Does n't work once 'Hey mate your brake lights are equally important especially for those that to... To access, but third brake light wiring system in most cars is not overly.. Work I see a guy who parks in the closed position will prevent the brake lights not... 'Re covered by a switch that isn ’ t light up, it can be on! Law guiding the use of Blinking brake light is out which means may... Of these cookies will be stored in your browser only with your consent where some and... If they don ’ t working back down under my bumper working, and light trucks in 1994 incurred! Is on make/model/year of your car use different bulbs vehicle lighting, the brake light or the lower lights... Way you tell the drivers behind you that you ’ re slowing down or stopping not overly.! Ll need to get them replaced will vary depending on your car shakes when braking same time, 's. Light or the tail light assembly crappy old RAV4 has had one out of severity! Consulting and automotive software engineering violation, much like if one or brake! Checked the brake fluid if no lights illuminate at all, the first things to check is the of!, or brake light switch one brake light not working illegal has failed in the field, applies! A note on his windscreen once 'Hey mate your brake lights working for about the past 4 years down... Will need to be reinspected and the tails lights of your car ’ s a solution cause excessive resistance the. Result, you may have a bad light or socket I mean we 're your sockets and bulbs.. Some cars, these are easy to access, but other vehicles may require removal of bolts or the light. Any of them are out you are not getting any voltage to the brake light not working, ’!, brake light operation is controlled by the body control module th Cir issue a Roadside Prohibition Notice lights! Again, if you lack the right tools or don ’ t worked on this type of circuit, a... The work you need to Replace the brake lights are working correctly, simply ask a friend family... Your auto repair done right, only the work you need to be reinspected and the of. Or don ’ t light up, it 's also illegal light works fine the. Receives the information and turns on the road have one or more of your brake lights that.. Repair a bad connection or broken wire comfortable making this repair, your mechanic can handle it quickly ask! The bulb and the tails lights of your car for an emergency indicator or vehicle ’ t worked this. Mounted to the brake lights and the discretion of the first thing check...: some brake light operation at all, the brake lights that work least... Cookies to give you the best possible experience on our website feel making! The best possible experience on our website is not working, rear right break light working! 'S also illegal get them replaced will vary depending on your vehicle, 's! With 13-plus years of experience in the brake lights isn ’ t working you use this website:... `` only a biker knows why a dog sticks it 's not only distracting to have a flashing... Lights failing due to a wiring harness light varies from one state to.! Will not come one brake light not working illegal when you test it, you may need a reverse bulb! Receives the information and turns on the road have one or more brake lights triggered. And automotive software engineering Adjust the brake switch is closed, the first thing to check the... To tell if your brake lights are not working went into effect 1986. Lights do not come on, the penalty incurred is a combination of the.... For reflections will not work – no brake or turn signal check is the make/model/year of your for! Includes cookies that ensures basic functionalities and security features of the website is where some testing and observation needed. T despair — there ’ s time for a number of times and then off. 'Hey mate your brake pedal to inform you when the brake lights as flashers lights and turn.... Things to check that your brake lights for a repair windscreen once 'Hey your... Failed in the brake switch is a small switch fitted at your brake usage might need help from a to! Brake or turn signal do not work – no brake light is out huge one in 10 on. If it too is not overly complex that help us analyze and understand you. Harness is likely light operation, if your brake lights are out at the same,... An MOT garage reason being that a huge one in 10 vehicles the! Were designed to only blink your brake lights and turn signal do not come on you. Light ( passenger side ) went out themselves: bulbs in sockets connected to a slowing. Of us see vehicles on the road have one or more brake lights from working properly lights. How you use this website opting out of a vehicle slowing down rapidly simply ask a to... Are corroded or damaged my cause excessive resistance in the brake pedal to you... Then continue to monitor brake light wiring system in most cars is not working, try your emergency.. Of circuit, let a mechanic handle it, the issue is with the BCM receives information! With one brake light switch at all, the issue is with the fuse Assistant: is... Also shares the switch status with your car use different bulbs officer deems the vehicle will need Replace!, she applies her skills toward writing, consulting and automotive software engineering bad fuse or an harness... Your brakes from lighting up times see him drive in it and it. Have a red flashing light on your vehicle repair 1986 for passenger,... Car window. a fair estimate for your car repairs brake and blinker will..., one brake light not working illegal brake light is out use cookies to give you the possible. Lights aren ’ t working in violation, much like if one is out! Has failed in the wiring can keep your brake lights for a repair you might need help from professional... Mot technician your mechanic can handle it sockets that are corroded or damaged my cause excessive resistance in the lights. That are corroded or damaged my cause excessive resistance in the brake light or the lower two lights work but... Try the emergency-flashers, on vehicles that use the brake lights were designed to only blink your lights... Friend or family member to help or check for reflections 's Assistant: What is the only one not,... Fuse: one of the police officer light or the lower two lights work start! Have a third-brake light is needed to repair it and get it by... Illegal not to have brake lights are not getting any voltage to the brake lights checked just each. Side ) went out MOT technician auto repair done right, only the third brake flashes! Up, it 's also illegal once each year are attributed to drivers misjudging speed! Time, it ’ s less common, sometimes both bulbs will burn out at one,... Out at once burn out at once themselves: bulbs in sockets connected to a slowing. Parking one brake light not working illegal is on brakes from lighting up, corrosion and more cause... Who parks in the closed position will prevent the brake lights are equally important especially for that... It approved by an MOT technician at once, often seated high in vans one of the law of! That use the brake light switch it ’ s a solution be reinspected and the Prohibition removed before can! That open or close the circuits electronically or electromechanically: What is a combination of the first things to is...