Why does the indicator light keep coming on?

The most common case is when the indicator light stays on constantly. It indicates more serious problem that requires action to be taken; the sooner the better. Yet, sometimes the issues aren’t that serious but can affect the emissions of the vehicle, for example.

Why does the parking brake light stay on on a GMC Truck?

If You Have Air Ride On Your Truck I Know If You Dont Have Bumpstops In That The Bed Or Something Back There Will Smash The Line That Runs Over The Top Of The Axle… I Had To Relocate Mine Cause I Was Hauling My Motorcycle And Hit A Bump And Cracked The Line.

What does a malfunction indicator light mean in a car?

The Malfunction Indicator Light can signal three different types of problems. Occasional flashes indicate temporary engine malfunctions. In this case, it is good to be aware of the possible forthcoming issues which can later on turn to more serious ones. The most common case is when the indicator light stays on constantly.

What does the parking assist indicator light mean?

A parking assist system helps your car park when it may be tricky to do so. If the light is flashing, dirt may be blocking the sensors from working. Is it safe to drive with the parking assist light on?

Is it normal for the security light to go off when the engine is running?

After the learn procedure is completed and the engine is running, the security light may stay on steady for a few minutes and then go off—this is normal. Depending on the system, replacement of key components will necessitate that a relearn procedure be completed.

Is the starter interrupt warning light on or off?

Depending on the current status of the system, the warning light will be off, on steady, or flashing. Although they may share the same dash-mounted warning light, these “starter interrupt” anti-theft systems work separately from and independently of the “content theft” systems available from factory and aftermarket suppliers.

When do I see the warning light on my PassLock system?

Under normal operation, you should see the warning light on during bulb check and off when the engine is running—no message displayed on the DIC. When the system detects a fault, the warning light will illuminate or a message will be displayed on the DIC, depending on the model.

What is the yellow light on a GM starter interrupt?

In this article, we are concentrating on factory-installed GM starter interrupt systems. This type of anti-theft system is designed to prevent the vehicle from starting unless the correct ignition key is used. These systems used a dash-mounted “security” or “theft” light which can be yellow or red in color.

What does the malfunction indicator light illuminates?

The light turns on only for a reason and you should not ignore it. You should always investigate the cause. What does the Malfunction Indicator Light mean? The Malfunction Indicator Light can signal three different types of problems. Occasional flashes indicate temporary engine malfunctions.

What happens when the lane departure warning light comes on?

The Lane Keeping Assist will only activate if the computer doesn’t see the driver react to the departure warning, and if they continue to drift out of the lane. Depending on the system, the computer can apply the brakes on one side of the car or manipulate the steering slightly to re-center the vehicle.

When does the OBD2 indicator light turn on?

The OBD2 system illuminates the light when there is a problem with the car’s engine, transmission or emission control system. The light turns on only for a reason and you should not ignore it. You should always investigate the cause.

Why is there a warning light on my front seat?

Have the SRS computer reset if necessary. Your front passenger seat contains a sensor that can tell whether someone is sitting there, and how much they weigh. This tells the SRS to fire the passenger airbag if an adult is in the seat. If this sensor is not working properly, it can cause the warning light to illuminate.

Why does the SRS warning light keep coming on?

This brief lighting indicates that the system is self-testing, but if the light stays on, this is an indication that there is something wrong with the system and it is disabled. Because the system is disabled, depending on the system installed, the airbags will not deploy and the seat belts will not tighten in an accident.

What does it mean when your TPMS warning light is on?

So check your tires carefully. If your vehicle has a TPMS, it’s probably monitoring the pressure in your spare tire. Therefore, if you get a low tire pressure warning light, and if you’ve checked all four tires that are touching the ground, than you might need to put some air in the spare.

When do You Know you need a supplemental restraint system?

Vehicle owners don’t think much about supplemental restraint systems, until a warning light indicates a problem. Diagnosis can be a challenge, especially if the problem is intermittent. (Aren’t they always?) I’m sure the birthplace of automotive passenger restraints was the front seat of my dad’s ’57 Chevy.

Why does the hazard warning switch stay illuminated?

Solved it! It was actually the ‘Welcome Home’ light switch (the one below the main light switch which holds the side lights on for 40 seconds after you lock the car) causing the problem. This was actually remaining illuminated constantly too, as well as the Hazard Switch.

Why is MY BMW park indicator light on?

That light shouldn’t do a darned thing to the ability to start the car. Besides, that isn’t something that BMW could get away with; designing it to stay on so it drains the battery. They’d have people complaining like you wouldn’t believe.

When to turn off the malfunction indicator light?

The DTC will give information about the detected issue. The OBD2 system can turn the MIL off automatically if the conditions for the problem stop to exist. After evaluating a system or component for three consecutive times without detecting the problem, the light can be turned off. But, usually the light remains on. What are the next steps?

Why is my ” park ” indicator light on?

Yes indeed the car was in Park, but it was not on – this seems like odd behavior, or at least wasteful of energy, unless it’s trying to tell me something. Starting the car and shifting out of Park and then back does not fix the issue.

What to do when the indicator light illuminates?

In this case, it is good to be aware of the possible forthcoming issues which can later on turn to more serious ones. The most common case is when the indicator light stays on constantly. It indicates more serious problem that requires action to be taken; the sooner the better.

Why is the emission control light still on?

The emission control light came on this morning and has stayed on. I’ve driven the car, left it parked up for 1 hour, started the engine again and the light is still on.

What should I do if my Emissions Light is on?

If emissions light are ON, but there is no issue with the smooth operation of the car, you need not worry about a thing! On the other hand, if the car faces problems with mileage, speed, power, and responds slowly to the throttle input; get it checked. It is never a bad idea to send your car for an inspection!

When does the check emissions light come on?

I have an 07 Acura MDX and every time gas gets low or its just refilled with gas the check emissions light comes on. I’m not going to pay 100$ for them to tell me its the gas cap.

What does a check engine indicator light mean?

A check engine indicator is a malfunction-indicator light or MIL for the computer-management system. They use several computers to operate the various systems on modern vehicles. The power control module or PCM controls the engine and constantly tests each system that it monitors.

What does the emission system warning sign mean?

So more “tighten fuel cap”… brought the car home, drove for couple days; “emission system check” light came on. Very frustrated, called the tech and he asked me bring the car when there is warning sign. So went to the tech, he connected the tablet and it showed P0420 Catalyst System Efficiency Below Threshold.