I have warning light maint reqd in dash board i think the problem is engine oil replacement so i replace the oil but idont know how to reset the warning light

There is a tiny button under the dash that needs to be held down to reset it. There are a couple of ways to reset them depending on the year model. I think this youtube vid relates to your car (not the best vid but should help) -
Acura Integra MAINT REQD light reset GS GSR LS

to reset the light with the doors closed key on press the gas down to the floor 3 times then the light should flash then its reset

For oil pump,oil pump pressure,oil warning light,oil low,oil ewplacing and other car engine oil problems,the help links are provided below.Click the link to go through the procedure :-----Oil light came on and the car died?http://schematicsdiagram.blogspot.in/2012/03/oil-light-came-on-and-car-died.html--------How to replace Oil filler cap or breather cap?http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-oil-filler-cap-or.html---------Oil pouring out from left front of engine?http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html------Common Causes of Car Oil Leaks?http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html--------Troubleshoot Car Oil leak?http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html--------Oil change details?http://repairhelpcenter.blogspot.com/2012/01/toyota-highlander-sport-oil-change.html---------Low oil pressure light?
http://howtobyme.blogspot.com/2011/11/low-oil-pressure-light-on-dodge-magnum.html
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leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html ----------
Car Turns OFF due to low oil pressure warning light?

http://schematicsdiagram.blogspot.com/2011/12/car-turns-off-due-to-low-oil-pressure.html

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leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html

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For more oil and oil pump details check out the direct links below: ---

How to Replace Oil Pan on car?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-oil-pan-on-audi-a4-and.html
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How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
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HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
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HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
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HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
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How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
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HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

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Oil pan Gasket on car?
http://howtobyme.blogspot.com/2011/11/oil-pan-gasket-on-1998-toyota-tercel.html

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Oil pressure for car?

http://schematicsdiagram.blogspot.com/2011/12/oil-pressure-for-2001-gmc-jimmy-v6.html

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How to replace Oil Pan on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pan-on-2008-honda.html

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How to replace Oil Pressure Sensor on car?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-oil-pressure-sensor-on.html

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How to replace Oil Pump on car?

http://howtobyme.blogspot.com/2011/12/how-to-replace-oil-pump-on-2008-honda.html

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Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

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Car oil leaks from valve cover gasket?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html

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Oil light blinks on dashboard?

http://schematicsdiagram.blogspot.com/2011/12/oil-light-blinks-on-dashboard.html

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Oil pressure issues on car?

http://repairhelpcenter.blogspot.com/2012/01/oil-pressure-issuers-on-toyota-tundra.html

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Oil leaks from air filter on ford?

http://technoanswers.blogspot.com/2012/01/oil-leaks-from-air-filter-on-ford.html

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Wire running from oil pan to alternator?

http://technoanswers.blogspot.in/2012/02/wire-running-from-oil-pan-to-alternator.html

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Why car leaks oil from oil filter?

http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-leaks-oil-from-oil-filter.html

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Why engine is consuming lots of oil?

http://schematicsdiagram.blogspot.in/2012/02/2008-scion-xb-24l-engine-is-consuming.html

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Maint REQD message on car dash?

http://schematicsdiagram.blogspot.in/2012/02/maint-reqd-message-on-2008-lexus-rx350.html

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Remove Sump oil pan?

http://repairhelpcenter.blogspot.in/2012/03/remove-volkswagen-sump-oil-pan.html

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Sump not coming OFF?

http://repairhelpcenter.blogspot.in/2012/03/sump-not-coming-off.html

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How to remove the sump on car?http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-sump-on-vw-beetle.html----------Car oil sump removal diagram?

http://repairhelpcenter.blogspot.in/2012/03/volkswagen-beetle-oil-sump-removal.html

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This will help.

Thanks.

1) Turn your key to the on position (dash lights will come on)
2) Push the odometer button until the total miles are displayed and keep holding it.
3) Turn the key Off, and then back ON while holding the odometer button in.Don't let up on the button. You will notice the odometer reading shows dashes and they will sequence off. After they sequence off, the Maint Reqd light will go off. Release the odometer button

Hello, and welcome to FixYa.

The 'Maint Reqd' light indicates that you are due for an oil change. It will blink 4,500 miles since the light was reset at your last oil change, and stay on steady after 5,000 miles.

If you recently had an oil change, all you need to do is reset your maintenance reqd lamp. The procedure is here on this site inthe 'tips and tricks' section, and it is also in your owner's manual.

This is Toyota's scheduled maintenance for the RAV4 at 100,000 miles...

Replace engine oil and oil filter 1
Rotate tires
Replace engine coolant 2
Visually inspect brake linings/drums and brake pads/discs
Applicable Footnotes:
1) Reset the oil replacement reminder (“MAINT REQD”) light after replacing engine oil, if vehicle is equipped with this light.
2) Initial replacement at 100,000 miles/120 months. Replace every 50,000 miles/60 months thereafter. Refer to "Engine Coolant" in the "Explanation of Maintenance Items" section in the back of this guide for more information.

Reset the "MAINT REQD" Light on Toyota Sienna:

1. With the car started (ignition on), set the LCD odometer readout to total mileage (not trip A or B).
2. Turn the car off (ignition key to the OFF position).
3. Push in AND HOLD the button/knob that switches the odometer
4. Turn key to ON position without starting the car. You will notice the maintenance light blink and go out.
5. Release the odometer button/knob.
6. Turn key to OFF position.
7. That's it! The "MAINT REQD" light has been reset to warn you to change your oil in another 5,000 or 7,500 miles or so.

Hope helped with this (remember rated this help) Good luck.

you could go to a big auto parts, have the light reset
if it come back on you need to take,it to the dealer.
for schedule maintenance, 5,000 km apart from each
oil change .

That is for oil changes. It come on when the oil change is due.
When you have your oil change done, the lube tech should reset the this light every time.
If you need help resetting the light, let me know.

1. With the car started (just ignition on), set the LCD odometer readout to total mileage (not trip A or B).
2. Turn the car off (ignition key to the OFF position).
3. Push in AND HOLD the button/knob that switches the odometer
4. Turn key to ON position without starting the car. You will notice the maintenance light blink and go out.
5. Release the odometer button/knob.
6. Turn key to OFF position.
7. That's it! The "MAINT REQD" light has been reset to warn you to change your oil in another 5,000 or 7,500 miles or so.