It is important to make sure the check engine light is not on when having a car inspected. A person can reset the check engine light by clearing the codes that are causing the light to go on.
You need to rent / purchase an OBD II code reader to check & reset the check engine light.
just remove the battery cable for about 5min then put it back. that should reset the check engine light.
How do i reset a service engine light on a 2005 gmc c6500 cat engine
Have vehicle scanned to have stored codes erased
unhook the battery for abt. 30 sec and re connect
To reset the service engine soon light on a 2004 GMC Envoy you can remove the ECU fuse. ECU stands for electronic control unit.
How do you reset the oil light on gmc c7500
The light is one because there is a problem with the emissions system. Once the problem is corrected the service tech will reset the light.
Check your gas cap.....My check Engine light always comes on if it is loose or not on at all.
you need to flash the computer,
First repair the problem that caused the light to come on, otherwise it will just come back on. You can try disconnecting the battery for 15 minutes and it may or may not reset the light. If this does not reset the light, you will need to access an OBD2 scan tool to be able to reset it.
changed battery engine light stays on
check engine light code on my 2001 gmc truck
The Check Engine light is on because there is a problem with the emissions system. Once you have the problem repaired the light will go off.
Have vehicle scanned to determine the problem and have codes cleared
The computer will reset itself after a few driving cycles. To reset the Check Engine light you can try this. Disconnect the positive battery cable for 20 minutes. If that does not work you will need an OBD2 scan tool to reset the light. Go to the place where you bought the O2 sensor and ask them to reset the light. Some will and some won't.
With an OBD2 scan tool.
To reset the GM Oil Life System after an oil change: 1. Turn the ignition to ON, with the engine off. 2. Fully press and release the accelerator pedal three times within five seconds. 3. If the CHANGE ENGINE OIL light message flashes, the system is reset. However, if it stays on, it did not reset. You'll need to refer to the vehicle's owners manual or your local GM dealership.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
take it to a gmc dealer
get your hands on a code reader or disconnect your battery for a few minutes
What warning light? The only warning lights that can be reset are the Maintenance Required and Check Engine Light. The Maintenance Required light is reset in different ways depending on model and year. The procedure is listed in your owner's manual. Reset the light after performing scheduled maintenance listed in your owner's manual, usually oil/filter change. The Check Engine light is reset by repairing the problem then unhooking the battery for 15 minutes, on a pre-1996 vehicle. On a 1996 and later vehicle it normally requires you use an OBD2 scan tool to reset the light. If you do not repair the problem that set the fault code, the light will just come back on. Your oil pressure warning light means you have low oil pressure, temp warning light means the engine is over heating, alternator light means the charging system has a problem.
how to reset abs warning light on 2000 gmc Yukon
Press the reset button