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The Volt still uses an oil lubricated motor that requires an oil and filter change. It also continues to use radiator coolant (DEX COOL), brake fluid (DOT 3), washer fluid, and automatic transmission fluid (DEXRON VI). It also will require air filter and wiper blade changes. Simply put – it’s no different than any other vehicle you are servicing today.

http://technorati.com/lifestyle/autos/article/how-to-service-chevrolet-volt-and/

I know not everyone works on their own car, but if you do this "How To" may be of interest.
 

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"Turn the ignition to run"

Step 1: Turn the ignition to run (one position before starting engine).

Does that mean push the blue "Power" button but don't open the hood?
 

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I apologize. I should have looked at the owner's manual first and double checked this guys instructions. 10-16 covers the reset procedure in detail. Although it seems to imply you turn on the car, unless there is another way to activate the dash.

How to Reset the Engine Oil
Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system:
1. Use the SELECT knob to select OIL LIFE on the DIC menu.
2. Press SELECT to start the OIL LIFE reset procedure.
3. The DIC menu will display “Are you sure that you want to reset?” Use SELECT to choose YES to reset oil life or NO to exit and return to the previous menu.
4. If YES is selected, the DIC menu will display RESET OIL LIFE for a short time and then 100% OIL LIFE will be displayed when
OIL LIFE is successfully reset.

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

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Step 1: Turn the ignition to run (one position before starting engine).

Does that mean push the blue "Power" button but don't open the hood?
"Turn the ignition to run" isnt something you can do with a push button start like the Volt of course. lol
It's pretty clear the article writers had perhaps downloaded a copy of the owners manual but didn't really have their hands on (or perhaps never even seen) a Volt. I also don't care much for the statement "use any 5-30 oil" even though GM specifically recommends a Dexos rated oil only. Basically ignoring manufacturers recommendations is a no-no, unless you don't care about maintaining your warranty or lease buy-out $$. In that case then you can do whatever you want to your own car of course.

To get to the equivalent of "ignition ON" in the Volt you press and hold the power button for 5-6 seconds (foot off brake, transmitter FOB in car) until the instrument cluster lights up. GM calls this "service mode" and used specifically during DTC retrieval, diagnostics and testing.In this mode opening the hood will NOT result in the ICE starting up as that will only happen in RUN mode(foot ON brake when pressing button)

You should always plug the Volt in and VERIFY charging operations are on-going (green LED) BEFORE entering service mode. Plugging in after entering service mode WILL NOT commence charging. The on-board DC-DC converter ONLY operates when the Volt is in "RUN" power mode, so during Li-Ion charging a supplemental 12V charging unit will keep the 12V battery alive, otherwise with everything powered up the smallish 12V AGM battery won't last long.

If plugging in isn't an option (or the Li-Ion battery is already fully charged) then before entering service mode for any length of time you should connect an off-board "noise-free" tapering charger suitable for Absorbent Glass Mat (AGM) lead-acid batteries (like the Midtronics PSC-300 used by all GM dealers) This type of charger prevents overcharging AGM batteries by automatically switching to a voltage regulation mode (as opposed to current regulation) as the battery approaches 75-100% SOC.This charger should be connected directly to the 12V + and - terminals available under the small access covers under the rear hatch load floor.

In the end there really isn't a need for your average owner to use service mode. But if you want to demo the instrument panel functions completely, or perhaps you have a suitable scan tool or code reader to do your own diagnostics, following these guidelines will prevent draining your Volt's 12V system down so low that it wont startup on your next attempt. (something that I personally believe may have already happened a few times to various Volt owners)

In that event you merely need to give the Volt a "jump" start as per your owners manual then let in stay in "run" mode for a while (preferably drive the car for 1/2 hr minimum) to partially charge the 12V battery. Then follow this up by a Li-ion charge cycle for at least an hour (assuming there's some Li-Ion SOC headroom for this to occur) otherwise you must use a proper off-board AGM friendly charger back at the battery to bring the 12V battery back to an acceptable SOC.

HTH
WopOnTour
 

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That's a lot of information. It appears that the Volt doesn't have an "ACC" position. If you want to listen to the radio while you're waiting in a parking lot, you just turn the Volt on, correct? Because of the touchy nature of keeping the AGM charged, it's best to avoid service mode and just turn the Volt on to reset the Oil Life to 100%, also correct? The information available on this board is amazing!
 

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Better still, leave the Volt off, and just turn the radio on. :)
*Huh*... Something to add to "things I didn't know about my Volt." And after you turn the radio on, the navigation and destination buttons/screens work as well. Handy!
 
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