Fuel Cap Light

[JD37064]

Ok so my fuel cap open light came on randomly on a long highway trip. I stop, filled up and re-sealed it and it never went off. That was 7 days, another fill up and 300 miles ago. Do I need a trip to the dealer or am I just an idiot?

 

[Rscx4]

Didn’t even know there was a light for that. I’d take it in, electrical gremlins in modern day vehicles IMO should be addressed by the dealer ASAP while still under warranty.

 

[Shortcut]

Didn’t even know there was a light for that. I’d take it in, electrical gremlins in modern day vehicles IMO should be addressed by the dealer ASAP while still under warranty.

It's good to have the dealer check it out as the problem might be something that could or has occurred in other Jeeps warranting a recall that we could all benefit from. Just my $.02 worth.

 

[Electrified]

If you already re-sealed the fuel filler cap then there is not much else you can do but go to the dealer. As has already been mentioned, a lot of electronics on modern day cars. Let us know how this is resolved.

 

[JD37064]

Update: I may literally have the worst Jeep dealership in America in my town; they had a 5 week wait to run the codes on the check engine light on the 80K Jeep they had the pleasure of selling me 9 months ago. Luckily there is a competent repair shop about 300 feet away that gave me a next day appt. Basically the fuel cap caused both a high and low evap check engine code. The shop reset the code for $42 and I'm back on the road. Still not sure how the fuel cap light appeared 3 hours into a 5 hour drive and would not go off despite trying multiple times to lock it, filling the tank completely etc.

 

[RugbyRef]

Update: I may literally have the worst Jeep dealership in America in my town; they had a 5 week wait to run the codes on the check engine light on the 80K Jeep they had the pleasure of selling me 9 months ago. Luckily there is a competent repair shop about 300 feet away that gave me a next day appt. Basically the fuel cap caused both a high and low evap check engine code. The shop reset the code for $42 and I'm back on the road. Still not sure how the fuel cap light appeared 3 hours into a 5 hour drive and would not go off despite trying multiple times to lock it, filling the tank completely etc.

@JD37064 - for future reference you could invest in a Tazer JL Mini from ZAutomotive or purchase an OBDII reader at any convenient auto parts store. That way you can plug it in and read the codes yourself, and, in most cases, reset the trouble codes (DTC's) as well. Glad you got it worked out!

 

[Shortcut]

Update: I may literally have the worst Jeep dealership in America in my town; they had a 5 week wait to run the codes on the check engine light on the 80K Jeep they had the pleasure of selling me 9 months ago. Luckily there is a competent repair shop about 300 feet away that gave me a next day appt. Basically the fuel cap caused both a high and low evap check engine code. The shop reset the code for $42 and I'm back on the road. Still not sure how the fuel cap light appeared 3 hours into a 5 hour drive and would not go off despite trying multiple times to lock it, filling the tank completely etc.

Five weeks before the dealer could even take a look at it? I'd Contact Jeep wave and tell them about your Stealership's lack of responsiveness and see if they will reimburse you for the cost to have the shop next door diagnose the problem and reset the code. The problem may or may not be resolved but if it happens again the dealer has no record of the first incident to further pursue the problem. Just 2 more of my hard earned cents.

 

[Viking Jeeper]

There was a time a few years ago most check engine lights were caused by loose gas caps. I did not know the Jeep had a loose gas cap light either but it makes sense. There is an evap code that usually indicates the cap is loose and the Jeep computer turns on the gas cap light rather than the check engine light when that code comes up.

It takes several drive cycles before the computer will shut off check engine or fuel cap lights after the problem has been fixed. Lots of miles on one drive cycle will not do it.

Weeks to check on your new Jeep is absolutely wrong but many check engine lights dont really mean a significant problem exists.

FYI most auto parts stores will read/reset check engine code/lights for free.

 

[JD37064]

Five weeks before the dealer could even take a look at it? I'd Contact Jeep wave and tell them about your Stealership's lack of responsiveness and see if they will reimburse you for the cost to have the shop next door diagnose the problem and reset the code. The problem may or may not be resolved but if it happens again the dealer has no record of the first incident to further pursue the problem. Just 2 more of my hard earned cents.

Yes 5 weeks and 2 days exactly. I even explained to the Service scheduler that the fuel cap light was on and that was the likely issue. Her advice: come back in 5 weeks and don't drive it till then.

 

[JD37064]

There was a time a few years ago most check engine lights were caused by loose gas caps. I did not know the Jeep had a loose gas cap light either but it makes sense. There is an evap code that usually indicates the cap is loose and the Jeep computer turns on the gas cap light rather than the check engine light when that code comes up.

It takes several drive cycles before the computer will shut off check engine or fuel cap lights after the problem has been fixed. Lots of miles on one drive cycle will not do it.

Weeks to check on your new Jeep is absolutely wrong but many check engine lights dont really mean a significant problem exists.

FYI most auto parts stores will read/reset check engine code/lights for free.

"FYI most auto parts stores will read/reset check engine code/lights for free." Awesome advice - thanks!