I have 2007 Acadia.( 68,000) It needs a oil change, but the brake light keeps coming on and some other light too. I don't have a manual. Now when I cut it off and take the key out, it keeps running. After few mins it cuts off and make jumping sound. What could it be?

Here is your 478 page Owner's Manual as a PDF file.
https://cdn.dealereprocess.org/cdn/servicemanuals/gmc/2011-acadia.pdf

Expensive to buy as a paper version!

2011 GMC Acadia and Denali Owners Manual - Amazon ...

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2011 GMC Acadia and Denali Owners Manual [GMC] on Amazon.com. *FREE* shipping on qualifying offers. 2011 GMC Acadia and Denali Owners Manual.
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GMC Acadia Owner's Manual PDF [2007-2022]

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Download GMC Acadia owner's manuals in PDF format for the years 2007 to 2022. View the GMC Acadia manual online, print or download it to keep on your ...

Repair Manuals & Literature for GMC Acadia for sale ' eBay

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2011 GMC Acadia & Acadia Denali Owners Manual User Guide Reference Book OEM (Fits: GMC Acadia). C $47.98. Was: C $73.80. C $16.20 shipping. Only 1 left!

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Take it to a repair shop. It\'s a gigantic pain. Plus, if you don\'t have a good working mechanical knowledge of your Acadia\'s power steering system, it will still make noise after you replace the pump. Bleeding the air out of the system is absolutely critical to keep it from making noise.
Not the answer you probably wanted, but having done several pumps myself with the vehicle up in the air on a lift, it\'s still a pain.

The you really do have low oil pressure? have this checked asap with a manual test gauge. Do not drive it until the cause is found or risk destroying the engine.

When these lights are on a fault code is recorded along with the lights you see, you will need to have the ABS Brake system/Stability control system scanned for the codes in memory before any conclusions can be made as to the cause or causes.

There is a bulletin (or recall depending on your mileage) for this issue. The timing chain stretches due to lack of oil lubrication. The acadia engine is very sensitive to timing chain stretch. There are 2 things they will do. The first is a reprogram to let the PCM adjust for minimal extra slack, they will say to drive it and if it doesn't come back on you're good just keep up with the oil changes (5k miles or less with dexos oil). If that doesn't work they will have to drop your engine and replace all 3 timing chains. It's an all day event and may even take an extra day.

this is telling you that you may need to check your brakes the pads are probably getting low or getting to a point that gm would like for you to have them changed.

It's in your manual, but I recall it to be...
Turn the ignition key to "run" and then depress the gas pedal three times down, and let off...then wait for yor light to flash, then key off.

You will need to take the tire off of the side that the light is burned out on. Then remove plastic fender well insert. This will give you the enough room to change out any burned out light in the headlamp assembly.

{: ) Your stabilitrak system may not work properly. The vehicle need to be scanned for trouble codes. In case you get a C0196 code, the recommendation is to reprogram the electronic brake control module. I hope that's the only cause.

{: ) If the vehicle does not have a Driver Information Center (DIC):

1. Turn the ignition to ON, with the engine off.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. Turn the key to OFF.
If the CHANGE ENGINE OIL SOON message comes back on when you start the vehicle, the engine oil life system has not reset. Repeat the procedure.

If the vehicle has a DIC:

1. Turn the ignition to ON, with the engine off.
2. Press the MODE button until the DIC reads OIL LIFE LEFT/HOLD SET TO RESET.
3. Press and hold the SET button until 100 percent is displayed.
You will hear 3 chimes and the CHANGE ENGINE OIL SOON message will go off.

4. Turn the key to OFF.

If the CHANGE ENGINE OIL SOON message comes back on when you start the vehicle, the engine oil life system has not reset. Repeat the procedure.