The check engine light can be reset two ways. 1) If the problem resolves itself, the check engine light will reset itself after a certain amount of cold starts of the car on the on board computer system. 2) You need an OBD reader that has the reset check engine light capability.
If you fix the reason the light came on in the first place the check engine light will reset itself after a few drive cycles.
Fix the cause of the light coming on and the light will reset itself within a few drive cycles.
Repair the problem and it will typically reset itself after 3 starting cycles.
The check engine light is reset with a scan tool after repairing the cause of the fault.The check engine light is reset with a scan tool after repairing the cause of the fault.
The check engine light has to be reset with a OBD scan tool
You reset the check engine light with a scan tool after repairing the failure.
It will automatically reset itself after you have started the car 50 times after the problem was fixed, or sometimes if you disconnect the battery for a while it will reset itself.
Assuming you want to clear/reset the check engine light, if you have successfully made repairs to correct what was the cause of the check engine light to go on the light will clear itself after a few drive cycles.
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.
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