These instructions apply to the Isuzu MU-X Mk1 2013-2020.
For other models, please choose your vehicle here.
After an oil-and-filter change on your Isuzu MU-X (2013–2020), the service indicator needs resetting so the countdown starts again. You can do it yourself from the dashboard menu with the trip/info button — no tool needed. The little spanner (wrench) symbol is a scheduled-maintenance reminder, not a fault warning: it simply tells you the vehicle has counted down the distance or time since the last oil service and wants your attention.
What the Service Light Means on the MU-X
The MU-X keeps its own service schedule and shows it through the driver information display. As the kilometres accumulate, the vehicle tracks how far you have driven since the counter was last set and warns you as the next service falls due. When the interval is reached, the spanner symbol or a service message appears each time you switch on, prompting you to have the oil and filter changed and then to reset the counter.
This is a distance/time countdown rather than a live measurement of the oil itself, so the reminder does not know whether the oil has actually been changed — it only knows the counter has run out. That is exactly why a manual reset is needed: once the fresh oil and filter are in, you tell the system to start a new interval. If you never reset it, the reminder simply stays on and cannot warn you accurately about the following service. Because intervals vary by market, model year and duty cycle (heavy towing or dusty conditions shorten them), always follow the schedule in your own owner’s handbook rather than assuming a fixed number.
Before You Start
- Do the oil and filter change first — resetting only clears the reminder, it does not service the engine.
- Park on level ground, apply the handbrake and put the transmission in P (auto) or neutral.
- You need the ignition on with the engine off for the menu to respond — do not start the engine.
- No tools, scanner or app are required; everything is done with the dashboard trip/information button.
Resetting the Service Indicator
- Turn the ignition on.
- Press the button repeatedly until ‘SELECT MODE’ appears, then press to confirm.
- Scroll to ‘SERVICE’ and confirm.
- Scroll to ‘ENGINE OIL’ and confirm.
- Press until the distance to next service is correct, then confirm.
- Turn the ignition off — the reset is complete.
If the Reset Doesn’t Take
- Work through the menu in order — SELECT MODE > SERVICE > ENGINE OIL. Selecting the wrong sub-item leaves the oil counter untouched.
- Confirm each step with the button press; a short tap scrolls, a deliberate press selects.
- Make sure the ignition is on but the engine is not running — the menu may not accept a change with the engine started.
- If the display times out, switch the ignition off, wait a few seconds, switch on again and repeat the sequence from the start.
- A service light that won’t clear can store a code — look it up on autodtcs.com.
What to Expect After Resetting
Once you confirm the reset, the spanner symbol goes out and the distance-to-next-service value returns to its full interval. From then on the display counts down again as you drive. If the symbol was appearing only as a brief reminder at start-up, that start-up message should no longer show. If a separate warning — oil pressure, check engine or a coloured lamp — is on, that is a different matter and is not cleared by this procedure.
How Often to Reset It
Reset the indicator every time the oil and filter are changed, immediately after the work is finished, so the countdown matches the fresh oil. The MU-X’s service interval depends on your engine, market and how the vehicle is used, and severe-duty use (towing, off-road, dusty air, lots of short trips) can call for more frequent servicing. Rather than relying on a single figure, follow the maintenance schedule in your handbook and reset the counter to match each service you carry out.
Frequently Asked Questions
How do I reset the service light on an Isuzu MU-X?
Ignition on, then use the dash button: SELECT MODE > SERVICE > ENGINE OIL, and confirm.
Do I need a diagnostic tool?
No — it’s done from the dashboard menu with the trip/information button. No scanner or app is needed.
Which button is it?
The trip/information button used to scroll the dashboard display — the same one you use to switch between the odometer and trip readings.
Should I reset before or after the oil change?
After — the indicator counts down to the next service, so it should only be reset once the fresh oil and filter are fitted.
Does resetting change the oil or fix anything mechanical?
No. Resetting only clears the reminder and restarts the countdown; the actual oil and filter change must be done separately beforehand.
The spanner light came straight back on — what happened?
Usually the sequence wasn’t confirmed on the ENGINE OIL item, or the engine was running. Switch the ignition off and on, and repeat SELECT MODE > SERVICE > ENGINE OIL, confirming each step.
If a service-related warning stays on, decode the code on autodtcs.com.
Independent guide — not affiliated with Isuzu. Always follow your official service manual and safety precautions. Read our full disclaimer.