Check Engine Light

unattach the battery for a few minutes and then reattach. it will reset itself if there was just a gas cap issue.

I have a 2004 Sienna. The "Maint Reqd" light came on at exactly 7500 miles. I saw it. A check of the maintenance manual shows that an oil change should be done every 7500 miles. Coincidence? I think not.

(Yes, the dealer may recommend every 3000 or 5000 miles, but Toyota recommends 7500 for most drivers.)

Any guesses on how to reset it would be appreciated.

I called my local dealer after the "maint reqd" light came on and was told how to reset it. With the key in the off position, hold in the trip odometer reset button and turn the key to the run position without starting the engine. Continue to hold the button for 3 to 4 seconds and then release the button. This resets the maintenance light, I don't know if it works for the service light or not. It's woth a try!

you need to make sure that the odometer is in the normal setting (not on one of the tripmeter settings.

First, if it was the gas cap, just tighten it and it will reset itself in the next 100 miles or so. If it is something else, like a leaky gas cap it will never reset. But to reset the OnBoardDiagnostic (OBD)Computer... Go to eBay and search "obdII" and buy one, they run about $50.00 including shipping. There are two types, ISO for Chrysler and some Japanese, and the other one for all the others like Ford and GM. There are several that are both, that is the kind you want. Be sure to email the eBay seller and ask if it is used with your year and model. (1996 was a changeover year for OBDII technology, so this advice may not apply to everybody--but the dealer service guy can tell you over the phone--ask him if it is OBDII compliant.) When you get it, you just plug it in and let it cycle 4 or 5 times and it resets everything. You then have to drive your car for 50 to 100 miles for the onboard computer to test everything, and in the meantime your car will fail smog checks because it has no history in the computer and the smog test procedure demands a history even if there is no pollution. Cut and Paste http://search.ebay.com/OBDII for a list of them for sale on eBay. Most units come with a list of generic fault codes so you can tell what the problem is, this could be very helpful.

My 1999 Sienna had flat tire light. Found low air in tire, sears pluged hole & filled up to 32#. Can not reset light. 1-Week later ABS light is on too. Week later engine light is on also. Took it to the dealer, they said I had bad cat converter. I had them reset the engine light and it's been off for 35 days now. Car has always ran fine & ABS & flat tire light still on?? Freind of mine has changed his cat converter once since under warrenty & I think it's a faulty signal.

the response about the trip meter is correct, but the instructions on resetting the light are detailed in the manual. Try the manual first and save yourself some time.

To turn off the engine light on a 2000 Camry, first, diagnose the underlying issue using an OBD-II scanner to retrieve any trouble codes. Address the problem by fixing any detected issues, such as a faulty sensor or loose gas cap. After resolving the issue, you can reset the check engine light by disconnecting the car battery for about 15 minutes or using the OBD-II scanner to clear the codes. If the light remains on, it may indicate a persistent issue that needs further investigation.

To reset the check engine light on a Nissan, you can use an OBD-II scanner to clear the trouble codes stored in the vehicle's computer. Alternatively, disconnecting the car's battery for about 15 minutes can also reset the light. However, it’s essential to address any underlying issues that triggered the light before resetting it to avoid future problems. Always consult your vehicle's manual for specific instructions related to your model.

The check engine light typically resets after the issue that triggered it has been resolved and the vehicle completes a series of driving cycles. This usually involves driving for about 50 to 100 miles under varied conditions, allowing the vehicle's onboard diagnostic system to run its tests. However, if the issue persists, the light may remain on. It's best to use an OBD-II scanner to clear the code manually after repairs.

To reset the check engine light on a Mercedes C230, you can use an OBD-II scanner to clear the codes. Simply connect the scanner to the OBD-II port, turn on the ignition, and follow the scanner's instructions to erase the trouble codes. Alternatively, you can disconnect the car battery for about 15 minutes to reset the system, but this may also reset other electronic systems. Always ensure any underlying issues are resolved before clearing the light.

If the check engine light is on in your Chevrolet Tahoe, it indicates that the vehicle's onboard diagnostic system has detected an issue. Common reasons for the light to activate include problems with the engine, emissions system, or other components. It's advisable to use an OBD-II scanner to retrieve the diagnostic trouble codes, which can help identify the specific issue. If you're unsure, consulting a professional mechanic for a thorough diagnosis is recommended.

If you are referring to the oil light then you do not reset it. The oil light comes on when it detects low oil pressure. The light will go out when the problem is corrected. Can be the engine is low of oil, does not have sufficient pressure, or the oil pressure sending unit it bad.

There are several signs of a faulty PCV valve. The most specific indicators are oil in the air filter or leaking around the seals and gaskets. More general signs are rough engine idle, decrease engine performance, decrease in acceleration, loss of power, and bad fuel economy.

It is important to maintain the fluid levels of a car with the proper fluid types. A 1999 Hyundai Accent uses 5w30 engine oil.

It is possible that a check engine light on a Toyota Highlander will come on if the coolant level is low. Usually, though, there is another light that will come on that says 'low coolant' on some older Toyota's.

The check engine light on a Toyota Tercel can come on for a variety of reasons. It can be come on whenever there is a problem with the engine that needs attention. To reset it, disconnect the battery for a few minutes then re-connect it.

You should ensure that you have had any needed repairs done to your vehicle when the check engine light comes on. If you have an ODB reader and already performed the repairs, you can use it to reset the check engine light, otherwise it can take time after a series of cold starts, and a mix of city and highway driving for the system to reset itself.

Probably time for an oil change. Or, if you change your own oil, you didn't reset the service light.

If the check engine light is coming on it is because you have a problem with the emissions system. Have the ECU scanned to retrieve the code that has been set. This code will tell you what part is being effected and may help you diagnose the problem.