My 2015 Chevy Spark Speedometer Is Jumping Back and Forth and Driveing Funny
Take a moment to consider how important the gauge cluster in your dashboard is. We often take the ability to see things like speed, engine temperature, and alerts for granted--until we lose that ability, that is. If the dashboard of your Subaru is suddenly dim, flickering, or just plain dark, your ability to drive safely will be compromised. Fortunately, different dash light problems often have distinctive symptoms. Below, you'll find four of the most common complaints about dash lights, as well as their causes and how to fix them.
The Symptom: Dash Lights Are Too Dim
The Cause
The most common cause of this problem is the dimmer switch. This switch or set of buttons allows you to make your dash lights dimmer or brighter to match your needs. The switch or buttons can sometimes be bumped, causing them to lower the brightness of the dash lights beyond what is comfortable.
The Solution
This one is easy: simply adjust the switch!
The Symptom: Dash Is Partly Dark
The Cause
This is a problem that is generally seen on vehicles that are a few years old or older, and that's due to the kind of technology used. Nowadays, individual LEDs will often make up the dash lights, so it's incredibly uncommon to see part of the dash that's larger than one of these lights go dim. But in older vehicles, the instrument cluster was backlit by light bulbs. When one of those bulbs burned out, that part of the dash would lose its illumination.
The Solution
Changing these light bulbs isn't as simple as changing headlight or tail light bulbs. It often involves removing parts of your vehicle's dashboard. Because of this, we recommend taking your Subaru to the dealership so that expert technicians can take care of it.
The Symptom: Dash Lights Are Flickering
The Cause
No, your Subaru isn't trying to throw a rave. Most likely, flickering dash lights are due to problems with the alternator. In addition to recharging the battery, the alternator is in control of running the electrical components in your vehicle. If the alternator is failing, it may not be able to steadily supply enough current to all the components.
The Solution
Bring your Subaru to a service center as soon as possible. A failing alternator is bad news for a number of reasons! It may not allow your battery to recharge enough, making it slowly drain to the point where you'll need a jump start to get things going. And, since electrical current supplied to the spark plugs is what creates spark, your engine may stop running if the alternator gives up the ghost entirely.
The Symptom: Dash Lights Are Dead
The Cause
If the dash lights are completely dark, it's safe to assume that the problem is somehow electrical. Most likely, this will be due to a blown fuse, which is designed to protect the circuits in case of a surge. However, it could also be due to deeper wiring issues. These problems could still cause the fuse to blow, and they may persist even after a fuse replacement.
The Solution
First, find your vehicle's fuse box and check the owner's manual to see which fuse is for the dash lights. Be sure that the vehicle is turned off with the keys out of the ignition, and then remove the fuse with pullers or a pair of pliers. Once you've removed it, hold it up to the light. If the interior filament is broken, the fuse will need to be replaced. Put in a fuse with the same amperage rating and hope that it works!
If the fuse wasn't blown, or the replacement fuse doesn't work or blows again quickly, it's likely that it wasn't just a one-time issue. Instead, your car likely has some electrical problem that needs to be fixed. The experts at Capitol Subaru are equipped to handle such problems.
Source: https://www.capitolsubaru.com/service/information/why-vehicle-dash-lights-are-out.htm
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