Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Is It Safe to Drive With the Gas Cap Light On?

Is It Safe to Drive With the Gas Cap Light On?

You have what sometimes seems like innumerable warning lights in your vehicle. Some of them alert you to very serious problems. Others, not so much. Some lights simply provide information, and your Gas Cap Light is one of those. When this light comes on, all you need to know that your gas cap is not present. Perhaps you have forgotten to screw it back on after fueling up, and you can consider this a helpful reminder that you should probably exit your vehicle and retrieve it off your trunk lid, or wherever else you might have left it.

So yes, you can drive safely with your Gas Cap Light on. Now, of course, you are wondering if you can drive safely without your gas cap. The short answer is yes. If you can drive with the Gas Cap Light on, you can drive without the gas cap. But what you need to know is:

  • Driving without your gas cap will not harm your engine.

  • Driving without your gas cap will not cause you to lose fuel. There is a flapper valve built into your car, and it will stop fuel from flowing out of your tank. The only danger here is if you were careless enough to lean over the fuel intake and provide an ignition source like a lit cigarette that could cause the escaping fumes to ignite.

  • Driving without your gas cap will not deliver harmful fumes into your passenger cabin.

The only real issue here is not safety-related – it is simply that until you replace your missing gas cap, you are going to have to live with a lit-up Gas Cap Light. Once you replace the gas cap, the light should go out. Sometimes, however, the system needs time to reset, so you may need to drive for a while before the light finally goes out. If it has not gone out within, say, a hundred miles, there could be other problems, and you should visit a mechanic to have your system scanned and the problem corrected. At YourMechanic, we can replace your gas cap for you, and also diagnose any problems that may be resulting in your Gas Cap Light remaining on even after the cap has been replaced.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: How do I adjust the head restraints?

Head restraints serve an important purpose during accidents, as well as providing support for your head, neck and shoulders while driving/riding. Adjusting the head restraints ensures the best comfort and safety. Press the Release Button: Press the Release...

Q: Gas tank implodes/ won't fill.

Your fuel tank is going into a vacuum when the engine is running. The vacuum condition is causing the fuel tank to collapse and the gas cap is supposed to let in fresh air from the outside to keep the...

Q: Dashboard light not working.

Hi there. If all of the lights on the dash board are not working then most of the time the issue is in the dimmer switch. The dimmer switch controls how bright the lights are inside of the vehicle. This...