Maintenance Monitor Settings

wrench lite

Scheduled Maintenance OR Tires OR Oil – needs attention
(OR the dealer failed to reset the system properly)

maintenance_oilchange

I have found the Maintenance App to be somewhat confusing, especially in regards to the Oil Change settings, but after some research, I think I have a better understanding of the logic behind the settings now.  In the United States and Puerto Rico, it appears that both the Mazda firmware, as well as the subsequent Fiat firmware (at least for version 56), have been programmed with Flexible mode as the default setting for Oil Change, and it doesn’t appear that you can alter that to Fixed mode.  So, in essence, there are no Oil Change setting changes available for us in the U.S., nor does it appear that you can reset the system after an oil/oil filter change from within the app either.  At the bottom of the article*, I’ve posted the Reset procedure.

Based on values that are displayed in the Scheduled Maintenance as well as the Tire Rotation screens, and according to the Mazda manual stating that the value is supposed to be displayed while in Flexible mode (and the fact that there is plenty of room on the screen, shown above), the remaining Oil life % should be displayed, as it could be somewhat useful for maintenance-planning purposes.  I’m still waiting for my wrench light wrench liteto illuminate. so that I can get my first oil change, even though this coming July, I’ll have had my car two years.  This summer, I’ll be changing my oil, regardless of whether the system notifies me or not I’ve changed my oil, as the Multi-Air “brick” that controls the intake valves requires that the oil’s viscosity not vary from the 5W-40 specs, and that it be free of sludge and contaminates, in order to function properly.

The viscosity of the oil actually affects the speed of intake valve movement when the solenoids trigger. To make sure that the valves are timed correctly, the ECU needs to know the EXACT viscosity of the oil in the Multi-Air brick. The easiest way to do this is to measure the VVT oil temperature (that’s why the sensor is in the brick), and then simply do a lookup of the specified PENNZOIL 5W-40 full-synthetic oil @ the given temperature, and determine the correct viscosity – and that’s what the ECU does.  Engine performance based on these calculations is probably how the ECU determines when it is time for the oil to be changed.

What this means in practice is that if you are not using the correct viscosity oil, there will be (hopefully minute) variances in actual intake valve timing versus the timing the ECU is expecting. This is probably most likely at the extremes, either low or high, where different brands and formulations behave vastly differently even if they’re labeled as the same viscosity. Or if you’ve decided to do something silly like put 20W-50 in your engine (which some old timers do as a way to reduce oil consumption).

Since I found errors in the 124 Spider manual (for example, there is no setting to switch the notification of  the oil change off, as the manual indicates), and some details were lacking, I’ve pulled together the available settings options for this app from the Mazda manual, and I’ve modified / corrected those and present to you the correct version, to help clarify your options:


From the Home screen…

  1. Select the icon on the home screen to display the “Applications” screen.
  2. Select “Maintenance” to display the maintenance list screen.
  3. Switch the tab and select the setting item you want to change.
Go directly to:     TIRE ROTATION     OIL CHANGE
Tab Item Explanation
Scheduled [Maintenance] Setting (ON or OFF) Notification can be switched ON or OFF.

In my 2nd comment below, I explain why I recommend turning this setting OFF.

Time (months) If ON, displays the time or distance until maintenance is due.

Select this item to set the maintenance period.

“Scheduled Due!” is displayed in red and the wrench indicator light in the instrument cluster will be illuminated when the remaining distance is less than 500 km or 300 miles, or the remaining number of days is less than 15 (whichever comes first).

Distance (mile or km)
Reset Resets the time or distance to the set value.

Once the system turns on, it needs to be reset after maintenance procedures have been completed.

Tab Item Explanation
Tire Rotation Setting (ON or OFF) Notification can be switched ON or OFF.  If you switch between 3-season tires and Winter tires, the reminders are probably useless, and should probably be turned OFF.

In my 2nd comment below, I explain why I recommend turning this setting OFF.

Distance (mile or km) If ON, displays the distance until tire rotation is due.

Select this item to set the tire rotation distance.

“Tire Rotation Due!” is displayed in red and the wrench indicator light in the instrument cluster will be illuminated when the remaining distance is less than 500 km or 300 miles.

Reset Resets the remaining distance to the set value.

Once the system turns on, it needs to be reset after rotating the tires.

Tab Item Explanation
Oil Change Setting Interval (Flexible or Fixed) Oil replacement period is pre-selected: flexible setting or fixed setting.

The flexible setting is available only in the United States and Puerto Rico. Once engine oil Flexible Setting Interval is selected, the vehicle calculates the remaining oil life based on the engine operating conditions. The vehicle lets you know when an oil change is due by illuminating the wrench indicator light in the instrument cluster.

Distance (mile or km)

(Displays only in fixed setting)

Displays the distance until the oil replacement is due.

Select this item to set the oil replacement distance.

“Oil Change Due!” is displayed in red and the wrench indicator light in the instrument cluster will be illuminated when the remaining distance is less than 500 km or 300 miles.

Oil life (%)

(Is supposed to be displayed in Flexible setting)

Calculates (but doesn’t display?, at least with version 56 firmware) the engine oil life until the oil replacement is due.

“Oil Change Due!” is displayed in red and the wrench indicator light in the instrument cluster will be illuminated when the remaining oil life distance is less than 500 km (300 miles), or remaining days are less than 15 (whichever comes first).

Reset*

(option may not be available)

In the flexible setting, resets the remaining oil life to 100 %.  

In the fixed setting, resets the remaining distance to the initial value.  If the reset option isn’t available, reset via the pedal*.

Once the Flexible Oil Maintenance Setting is selected, the system must be reset via the pedal*, whenever replacing the engine oil and filter – regardless of what mode the
message/wrench indicator light display is in.
oil change due

Gary Fozzard (Europe vehicle) had his oil changed, but the wrench continued to illuminate because the dealer failed to reset the system.


*  The normal method for resetting the wrench indicator light wrench lite(at least for Oil Change) is:

  • Ignition ON
  • Press accelerator pedal down (to the floor) 3X within 10 seconds
  • Ignition OFF

If Tire Rotation and Scheduled Maintenance trigger the wrench indicator light, the Reset options in these Maintenance menus should be used, so as to not mess up the oil life algorithm.

2 thoughts on “Maintenance Monitor Settings

  1. I can’t seem to figure out what “maintenance” is actually “scheduled.” The light came on around 7500 miles so I had the oil changed and the tires rotated. Now I’m at 11,500 miles and the scheduled maintenance says it’s due in 15 days, but it says the next tire rotation and oil change are due in 1600 and 4600 miles respectively (or maybe it’s reversed, I’m not in the car at the moment). I miss the Honda codes that actually specified what maintenance was needed. FYI I have a 2017 Lusso with a manual transmission.

    Like

    • This probably isn’t the answer you are hoping for, but I agree – and that is why I had chosen to turn off both Scheduled Maint. and Tire Rotation reminders, during my first week of ownership. My wrench light is dedicated to Oil Change (even though I changed my oil a few months ago, before it ever illuminated), knowing that it will only be meaningful if Reset is activated directly after each oil change.

      I’ll refer to the manual for my Scheduled Maint. and rotate my tires on my own schedule (if at all). 😉

      Like

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