How do you turn off the check engine light on a 2018 Silverado?
If the check engine light on your 2018 Chevrolet Silverado is illuminated, it indicates that there is an issue with your vehicle's emissions or engine system. While the light itself does not pose an immediate danger, it's important to address the underlying problem to avoid further damage or decreased fuel efficiency. Here's a step-by-step guide on how to turn off the check engine light on your 2018 Silverado.
Diagnose the Problem
The first step in turning off the check engine light is to diagnose the underlying issue. You can do this by using an OBD-II (On-Board Diagnostics) scanner, which can read the trouble codes stored in your vehicle's computer. These codes will provide information about the specific problem that triggered the check engine light.
- Obtain an OBD-II scanner, either by purchasing one or borrowing one from an auto parts store.
- Connect the scanner to the OBD-II port, usually located under the dashboard on the driver's side.
- Read the trouble codes displayed on the scanner and make a note of them.
With the trouble codes in hand, you can then research the specific issue and determine the best course of action to resolve it.
Address the Underlying Issue
Once you've identified the problem, you'll need to address the underlying issue to turn off the check engine light. Depending on the trouble codes, this may involve replacing a faulty sensor, repairing a malfunctioning component, or addressing an emissions-related problem.
- If the issue is a simple one, such as a loose gas cap or a faulty sensor, you may be able to resolve it yourself.
- For more complex problems, it's best to take your Silverado to a qualified mechanic who can diagnose and repair the issue.
- After the problem has been addressed, the check engine light should turn off automatically.
If the check engine light remains illuminated after addressing the underlying issue, you may need to reset the light manually.
Reset the Check Engine Light
If the check engine light remains on even after addressing the underlying problem, you can try resetting it manually. This process will clear the trouble codes from your vehicle's computer and turn off the check engine light.
- Locate the negative battery terminal and disconnect it, waiting for at least 30 seconds.
- Reconnect the negative battery terminal and start your Silverado's engine.
- The check engine light should now be turned off, indicating that the problem has been resolved.
Remember, turning off the check engine light does not mean the underlying issue has been fixed. It's important to address the problem to ensure the long-term health and performance of your 2018 Chevrolet Silverado.
How do you reset the check engine light with a gas pedal?
Speed up to 55 to 60 mph at 75% throttle by slowly pushing the gas pedal down about three-quarters of the way. Maintain that speed for five minutes. Stop the vehicle and let it idle for 10 seconds. Turn the key off and wait two minutes for the ECM to power down.
How to reset check engine light without disconnecting battery?
Expert-Verified Answer. You can reset the check engine light without disconnecting the battery by using an OBD2 scanner or by driving your vehicle for a while. The OBD2 scanner allows you to erase codes or reset it manually, while driving can help the computer system reset the light if no issues are present.
Why is my check engine light on if nothing seems wrong?
Yes, a check engine light can come on due to a false alarm. This can happen because of temporary electrical glitches, sensor errors, or even software bugs in the car's computer system.
Can I clear the check engine light myself?
An even simpler way to clear the engine management light is to turn the ignition on and off. This approach achieves the same outcome as the previous step, but without disconnecting the battery. Turn the ignition on and off three times, pausing a second between each cycle. The engine management light should go off.
How to reset check engine light on 2018 Chevy Silverado?
Thankfully, the fix for the Chevy Silverado is pretty simple. So how do you reset the check engine light on your Chevy Silverado? Turn the ignition off and back on three times. That's it.
How to clear check engine light code on Chevy?
How to Reset a Check Engine Light
- Park your vehicle and turn it off, then remove the key.
- After popping your hood and locating your battery, loosen the nut on the negative battery terminal (you might need a wrench to loosen it).
- Pull the negative connector away from the battery and let it sit for 30 seconds to a minute.
How do I manually turn off the check engine?
Turning the Ignition On and Off
The on-off method is the equivalent fix for a vehicle's check engine light. It forces the computer to refresh its saved state through a reboot. Simply place your key into the ignition and turn it on for 1-2 seconds, then turn it off for 1-2 seconds. Repeat this step three or four times.
How to reset check engine light 2018 silverado?
Steps to Reset Check Engine Light
- Turn off the ignition and put on safety glasses and gloves.
- Locate the negative terminal on your car battery.
- Loosen the nut on the negative terminal with a wrench and pull the negative connector from the battery.
- Reconnect the negative cable and tighten it with your wrench.
Is it possible for a check engine light to turn off on its own?
In most cases, successfully repairing the issue that caused your light to come on will cause the check engine light to turn off automatically—but only after 10 to 20 “cycles”. A cycle, in this instance, refers to the process of turning the vehicle on, running it for some time, and turning it off again.
How to clear check engine light without disconnecting battery?
Expert-Verified Answer
You can reset the check engine light without disconnecting the battery by using an OBD2 scanner or by driving your vehicle for a while. The OBD2 scanner allows you to erase codes or reset it manually, while driving can help the computer system reset the light if no issues are present.
