The car does not have a dip stick... what do you do to reset the level - I.e. tell the computer to verify the oil level after an oil change?

Your car should have a dip stick that tells you where the oil level is. Use that to determine how much oil you need to add. Add 1 qt at a time until the oil appears on the dip stick, then add the oil slowly, checking the level until it is in the hash marks on the dip stick. If there is no dipstick, drain the oil and measure the oil using a gallon or quart containers and add the recommended amount. Remember there is already about 1 qt of oil in the filter.

Should hold 4.3 liters if dry. With an oil change and filter replacement, I would add 3 liters, check the oil level and add the 4th if it will fit based on the dip stick measurement. Then run the engine, check for leaks and stop the engine to check the oil level again. Add oil to the appropriate level on the dip stick.

I strongly suggest you read the vehicle handbook to fully understand the meaning of the light or indicator.

If the indicator is telling you the oil level is low, the computer might be just testing the system or the oil level sensor might be sticking or faulty.
If the indicator is telling you the oil pressure is slow to build, again it might be a circuit check or it might be an important warning.

A third possibility is a warning the oil filter is ready for a change.

The dip stick has markings on it showing the level it should be at.

How you check your oil level properly on a Nissan 3.5 engine

? 1:15
https://www.youtube.com/watch?v=5uih27KiKMo
Mar 2, 2013 - Uploaded by FixyourNissan
When you have no dipstick tube you can incorrectly check youroil level. ... How you check your oil level ...Missing: inches ‎ltr

Oil Dip Stick Reading...Help! - Nissan Forums : Nissan Forum

www.nissanclub.com/...nissan-altima.../92792-oil-dip-stick-reading-help....

Mar 28, 2003 - 14 posts - ‎12 authors
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Check Oil Level 2002-2006 Nissan Altima - CarCareKiosk

Do it when its cold you are Right .

look on dip stick you should see cross hatched area with add oil or oil full mark.if you wipe oil dip stick with a clean paper towel and dip stick look dry no sign of oil add little oil at a time see if oil level reach add oil mark or the full mark.if oil is low. low oil light will turn on if bulb is blowed but if dip stick look dry oil level could be low,add little bit at a time dont over fill.

hi there
your oil light comes on for one of two reasons either it is low on oil or your vehicle is ready for an oil change you can check the oil level by pulling the oil dip stick when vehicle is not running there will be a fill line on the dip stick the oil level should be at full if it is not add oil if it is full it is ready for a oil change most likely it is just low on oil hope i have answered your question and have a wonderful day thanks for using fix ya

Most all GM cars and trucks, Now have a Smart Oil Life Monitor System. Your Oil Life Quality (not quantity) is now determined by the Car's on board computer. By your driving habits, speeds, temperature, distance, time, etc. Your Car's computer knows when the Oil is 'worn' out and needs changing. Read the fine print in owners manual for how to reset it. GM owners manuals are available Free online, for reading or printing. Free, Free. Now you still have to pull the dip stick and check the oil level every tank of gas of so. The computer won't do that for you.

1st off your trans doesn't have a dip stick, it is a sealed transmission, to check level you need to have the dealer hook up a scan tool and then verify trans fluid temperature is at at least 175-185 degrees for correct level check, then there is a inspection plug they access on the top of the trans for a level check. The fluid and filter should be changed around 60,000 miles