Warning: What these 5 Lights Could Signal after Auto Technology School
October 5, 2018
Just because a vehicle still feels good to drive doesn’t mean that there aren’t problems under the hood. Lights popping up on the dashboard shouldn’t be ignored. This is a warning system that notifies the driver about problems that could eventually cause serious danger and expensive repairs. As any auto mechanic knows, however, there are lots of different problems that can occur in a vehicle. And there is a long list of warning lights to know about as a result.
Most of these lights briefly appear when turning the key in the ignition, but you’ll know there’s a problem if they remain lit up after a few seconds. This blog looks at five of the most important icons, and the reasons why they appear in front of the driver.
1. The ABS Icon Highlights Subtle Braking Problems
The Anti-lock Braking System light on the dashboard is easy to spot because it’s simply the abbreviation ‘ABS’ within a circle. This technology is a feature of all modern cars and prevents dangerous skidding during heavy braking. It’s a problem, therefore, that drivers probably won’t recognize unless this light appears on the dash. Graduates of auto technology school know that the light represents signal problems with the ABS sensors located in each wheel. Brake fluid levels may be low or there may be a blown fuse. The brakes should still function properly but won’t experience the added benefit of ABS technology.
2. The Dashboard Can Tell You when the Battery Isn’t Charging Properly
The battery/alternator warning light is like a ‘Lego’ block with a ‘+’ and ‘-‘ sign on it. It appears on the dash when a problem has been diagnosed with the charging system (alternator). It should be seen to immediately because a faulty battery means the vehicle won’t start. The light can represent a lot of different problems, including poor connections with the battery system or damaged cabling under the hood.
3. The Coolant Light Helps to Prevent Engine Overheating
Don’t forget that an engine can only move because of lots of tiny explosions happening in the engine cylinders. The block itself, and all the other mechanical components, become very warm and coolant is vital to keep everything in tip-top shape. The light appears in the shape of a thermometer on top of waves, and it indicates overheating in the engine. There could be a leak or low pressure in the cooling system. If it’s not seen to, steam and smoke could soon rise from under the hood while driving.
4. What the Oil Warning Light Means in Auto Technology School
There’s a lot of metal rubbing together when a vehicle is moving, and lubrication is vital to keep all these parts healthy. Engine oil levels need to be maintained, and a warning light will appear if the driver isn’t paying enough attention. The light could also represent low oil pressure, but either way it’s a light that can’t be ignored. Engine damage is very expensive and time-consuming, so make sure that drivers get their vehicle checked out.
5. Tire Pressure Lights Have Become Common in Recent Years
This is a relatively new addition to the dashboards of modern vehicles, and it’s a helpful one for students enrolled in automotive courses in Canada. The tire pressure light, shaped somewhat like a flat tire with an exclamation mark, pops up when—you guessed it—tire pressure is worryingly low. Drivers may not notice gradual air loss in one of the tires, and it can seriously affect acceleration, cornering, and braking. The warning light could quickly disappear by pumping up the tire, or a full replacement may also be needed.
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