Chevy Silverado: Resetting the Check Engine Light

Gilbert Smith
Feb 9, 2021

Black 202 Chevrolet Silverado 1500 With White Background

Did your mechanic forget to reset the check engine light after your last oil change?

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. If the problem persists, there are some other fixes that may work, or you might actually have a reason to check your engine. 

Below we’ll explore these fixes in greater detail, and take a look at the mechanics of the check engine light itself. As annoying as this problem can be, thankfully it’s not that big an issue when compared to the problems some vehicles have.

A Look at the Check Engine Light

The check engine light may seem like a general purpose “something’s wrong” indicator. It actually detects oxygen levels in your exhaust gas. If the oxygen level isn’t where it’s supposed to be, then your car’s computer knows something is wrong, and it tells you.

Often, you’ll be able to fix whatever’s wrong simply by tightening a gas cap or using a fuel additive. “Check engine” doesn’t necessarily mean anything is broken and needs to be replaced, it just means that the oxygen levels in your exhaust aren’t quite right.

One problem is that in older vehicles, you’re going to have wiring going bad, solder joints coming loose, and other technical hiccups that result in your instrument cluster going haywire. Lights will come on when they shouldn’t, or fail to come on when they should.

How to Reset Your Check Engine Light

Check Engine Warning Light

Here’s the simple way to do it with a Silverado, and the way that usually works:

  • Put the key in the ignition.
  • Turn the car on.
  • Turn the car off.
  • Turn the car on.
  • Turn the car off.
  • Turn the car on.
  • Turn the car off.
  • Turn the car on.

So, you’re going to be turning the car on, then turning it off and back on three times in a row. You can do this if the indicator is switching on for no reason, or if you’ve just had a tune-up and need to reset your indicator.

Another way to reset your check engine light is to do a hard reset by detaching the battery for about two minutes. It can help to press the horn or turn the headlights on to drain any lingering energy.

There are other methods, but they mostly come down to the same thing: Interrupt the power supply to force a hard reset on your vehicle’s computer.

If you keep having a problem with the check engine light coming on for no reason, your best bet may be to replace the whole instrument cluster. Trying to replace any single individual component can be a lot of hassle and leaves other outdated components in place.

Be Prepared

When shopping for a new vehicle, it pays to know exactly what sort of problems you’re going to have to deal with. No vehicle is perfect, but some have more serious issues than others, and Vehicle History will let you know what you’re getting into.

Owner Reviews

accountCircle paul on October 18, 2023
Handiman 2018 LTZ 1500 Silverado
Engine light came on. Idling rough. The code said #5 missing firing(118500 miles on motor) After checking many complaints on the 5.3L motor, i decided to install a new motor. I drove the truck about 40 miles and the engine light comes on again. This time it was codes 420 & 430, catalytic converters bad. I replaced both of them with down stream oxygen sensors. The motor still has a little miss to it but no engine lights. I tried my remote engine start and now i have these codes on it. Fuel,evap,025,HTR ,EGR, PO303( twice) 420.530 and 50D. What the hell. I have spent almost $11,000.00. Any answers other than hundreds $$$$ more. Handiman
accountCircle Amy on April 14, 2023
Check engine light won’t go off
I had a Chevy Silverado 2007 LTZ my oil pressure gauge I had fix because that’s what the code was reading but check engine light won’t go off and I gotta get my tags and need a smog
accountCircle Mike on March 4, 2024
Didn't work for 2016 Duramax
Seems odd the article says to turn the car off and on. Do they mean start the engine or just turn to key position 1? Anyway, I tried it both ways and no luck.
accountCircle Chris on June 2, 2023
Worked
Worked for my 2006 Silverado. I assume ive probably got an O2 sensor malfunctioning, but on and off 3 times and it disappeared.
accountCircle J h on September 18, 2022
Tried it engine light still on
Will this work on a 2007 chevy silverado? I have had this problem have replaced gas cap, a nd reset light..
accountCircle Joseph of Santa Fe on February 3, 2022
Owner
Thanks for this info, I’ll try this advice.
accountCircle Tony on March 20, 2023
Enjun lite
Juss Rite ⚡️👍
avatar Gilbert Smith
Gilbert Smith is a New Mexico-based automotive journalist who enjoys writing about cars, trucks, and SUVs. He is a longtime contributor to Vehicle History and a member of the site's original content team when it launched.
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