Start/Stop Engine

i-stop

The i-stop function automatically stops the engine when the vehicle is stopped at a traffic light or stuck in traffic, and then restarts the engine automatically to resume driving. The system provides improved fuel economy, reduced exhaust gas emissions, and eliminates idling noise while the engine is stopped.

Engine idle stopping and restarting

 


  • After parking the vehicle, make sure that the ignition is switched OFF. There is the possibility of the vehicle moving if the vehicle is parked while i-stop is operating.

  • The i-stop indicator light (green) turns on under the following conditions:

    • When engine idling is stopped.

  • The i-stop indicator light (green) turns off when the engine is restarted.

Manual transmission

Engine idle stopping and restarting while vehicle is stopped

(AUTOHOLD operation turned off)

  1. Stop the vehicle by depressing the brake pedal and then the clutch pedal.

  2. While depressing the clutch pedal, shift the shift lever to the neutral position. Engine idling stops after the clutch pedal is released.

  3. (European models)

    • (Without M Hybrid)

      The engine restarts automatically when the clutch pedal is depressed.

    • (With M Hybrid)

      Depress the clutch pedal and shift the shift lever to a position other than neutral.

      The engine restarts automatically after releasing the brake pedal or starting to release the clutch pedal.

    (Except European models)

    The engine restarts automatically when the clutch pedal is depressed.

(When the vehicle is stopped by the AUTOHOLD function)

  1. Bring the vehicle to a complete stop by depressing the brake pedal first and then the clutch pedal.

  2. While depressing the clutch pedal, shift the shift lever to neutral. After releasing your foot from the clutch pedal, engine idling stops and continues to be stopped even if the brake pedal is released.

  3. (European models)

    • (Without M Hybrid)

      The engine restarts automatically when the clutch pedal is depressed.

    • (With M Hybrid)

      The engine restarts automatically when the clutch pedal is depressed with the shift lever in a position other than neutral.

    (Except European models)

    The engine restarts automatically when the clutch pedal is depressed.

Engine idle stopping and restarting while driving (With M Hybrid)

  1. The gear shift indicator (GSI) displays N when engine idling can be stopped while the shift lever is in a position other than neutral.

  2. Depress the brake pedal.

  3. Shift the shift lever to the neutral position.

  4. Engine idling is stopped after releasing the clutch pedal.

  5. The engine restarts automatically when the clutch pedal is depressed.

Automatic transmission

Engine idle stopping and restarting while vehicle is stopped

(AUTOHOLD operation turned off and When not using Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)/Cruising & Traffic Support (CTS))

  1. Engine idling stops when the brake pedal is depressed while the vehicle is driven (except for driving in the R or M position second gear fixed mode) and the vehicle is stopped.

  2. The engine restarts automatically when the brake pedal is released with the selector lever in the D or M position (not in second gear fixed mode).

  3. If the selector lever is in the N or P position, the engine does not restart when the brake pedal is released. The engine restarts when the brake pedal is depressed again or the selector lever is shifted to the D, M (not in second gear fixed mode) or the R position. (For the purposes of safety, always keep the brake pedal depressed when shifting the selector lever while engine idling is stopped.)

(When the vehicle is stopped by the MRCC with Stop & Go function/CTS stop hold control)

  1. When the vehicle is stopped by the MRCC with Stop & Go function/CTS, engine idling stops and continues to be stopped without depressing the brake pedal.

  2. When the accelerator pedal is depressed or the RES switch is operated while the vehicle is kept stopped by the MRCC with Stop & Go function/CTS, the engine automatically restarts. The engine restarts automatically when the accelerator pedal is depressed with the selector lever in the D/M position (not in second gear fixed mode).

(When the vehicle is stopped by the AUTOHOLD function)

  1. When the brake pedal is depressed while the vehicle is being driven (except for driving in the R or M position second gear fixed mode) and the vehicle is brought to a stop, the i-stop function will operate and it continues to operate even if the brake is released.

  2. The engine restarts automatically when the accelerator pedal is depressed with the selector lever in the D/M position (not in second gear fixed mode).

  3. If the selector lever is in the N or P position, the engine does not restart when the brake pedal is released. The engine restarts when the brake pedal is depressed again or the selector lever is shifted to the D, M (not in second gear fixed mode) or the R position. (For the purposes of safety, always keep the brake pedal depressed when shifting the selector lever while engine idling is stopped.)

Engine idle stopping and restarting while driving (With M Hybrid)

(When not using MRCC with Stop & Go function/CTS)

  1. Engine idling stops when the vehicle speed is about 20 km/h (12 mph) or slower after depressing the brake pedal while driving the vehicle (in D position).

  2. The engine restarts automatically after releasing the brake pedal with the selector lever in the D position.

(When using MRCC with Stop & Go function/CTS)

  1. Engine idling stops when the vehicle speed is about 20 km/h (12 mph) or slower after decelerating the vehicle a certain amount or more while in headway control using the MRCC with Stop & Go function/CTS.

  2. If it is necessary to accelerate while in headway control using the MRCC with Stop & Go function/CTS, the engine restarts automatically.

Operation conditions

Under the following conditions, engine idling stops and the i-stop indicator light (green) turns on.

  • (SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-X 2.0, SKYACTIV-G 2.5)

    The engine is warmed up.

  • (SKYACTIV-D 1.8)

    The engine is not cold.

  • The engine has been started and the vehicle is driven for a certain period.

  • The engine is started with the bonnet closed.

  • All doors, liftgate/boot lid, and bonnet are closed.

  • The driver's seat belt is fastened.

  • The air conditioner is not operating with the airflow mode in the position.

  • The temperature setting dial of the air conditioner is in a position other than maximum heating or maximum cooling (A/C ON) position.

  • (Automatic air-conditioning system)

    The vehicle's interior temperature and the set temperature for the air conditioner are nearly the same.

  • The i-stop warning light (amber) is not turned on/flashing.

  • The keyless entry & push button start system functions are normal.

  • (With M Hybrid)

    • The temperature and charge condition of the M Hybrid battery is within normal operating range.

    • The Integrated Starter-Generator (ISG) is in good condition.

  • (Without M Hybrid)

    • The brake vacuum is sufficiently high.

    • The battery is in good condition.

  • (Manual transmission)

    While vehicle is stopped

    • The vehicle speed is 3 km/h (1.8 mph) or less.

    • The shift lever is in the neutral position.

    • The clutch pedal is not depressed.

    While driving (With M Hybrid)

    • The vehicle speed is 10 km/h (6.2 mph) or less.

    • The gear shift indicator (GSI) displays N.

    • The brake pedal is depressed.

    • The shift lever is in the neutral position.

    • The clutch pedal is not depressed.

    • The steering wheel is almost in the straight-ahead position (idling may not stop even with the steering wheel in the straight-ahead position if force is applied to the steering wheel. Release the force applied to the steering wheel to stop engine idling).

    • The vehicle is not driven on a slope.

  • (Automatic transmission)

    While vehicle is stopped

    • The selector lever is in the D or M position (not in second gear fixed mode).

    • The automatic transmission fluid has warmed up sufficiently.

    • The automatic transmission fluid temperature is not abnormally high.

    • The steering wheel is almost in the straight-ahead position (idling may not stop even with the steering wheel in the straight-ahead position if force is applied to the steering wheel. Release the force applied to the steering wheel to stop engine idling).

    • The vehicle is stopped by depressing the brake pedal.

    • The vehicle is not on a steep slope.

    • The vehicle is not stopped suddenly.

    While driving (With M Hybrid)

    • The selector lever is in the D position (not in second gear fixed mode).

    • The vehicle is driven at a vehicle speed of about 20 km/h (12 mph) or faster after engine idling stops while the vehicle is stopped.

    • The vehicle is driven at a vehicle speed of about 30 km/h (19 mph) or faster after engine idling stops while driving.

    • The vehicle is not driven in sport mode.

    • The automatic transmission fluid has warmed up sufficiently.

    • The automatic transmission fluid temperature is not abnormally high.

    • The steering wheel is almost in the straight-ahead position (idling may not stop even with the steering wheel in the straight-ahead position if force is applied to the steering wheel. Release the force applied to the steering wheel to stop engine idling).

    • The vehicle is stopped by depressing the brake pedal.

    • The vehicle is not driven on a slope.

    • The vehicle is not stopped suddenly.

 


Under the following conditions, a period of time is required to stop engine idling

  • (Without M Hybrid)

    The battery power is depleted for some reasons such as the vehicle has not been driven for a long period.

    (With M Hybrid)

    The M Hybrid battery power is depleted for some reasons such as the vehicle has not been driven for a long period.

  • The ambient temperature is high or low.

  • After the battery terminals are disconnected for some reasons such as for battery replacement.

  • (SKYACTIV-X 2.0)

    After particulate matter (PM) removal is performed by the petrol particulate filter.

    Refer to Petrol Particulate Filter (SKYACTIV-X 2.0) (Search).

  • (SKYACTIV-D 1.8)

    After PM removal is performed by the diesel particulate filter.

Engine does not restart

If the following operations are performed while the idling is stopped, the engine will not restart for safety reasons. In such cases, start the engine using the normal method.

  • (European model)

    • The bonnet is opened.

    • The driver's seat belt is unfastened and the driver's door is opened.

  • (With M Hybrid)

    • Automatic transmission

      The driver's seat belt is unfastened and the driver's door is opened.

    • Manual transmission

      The driver's door is opened.

Engine-stop period is short or time until next engine idle stop is long

  • The ambient temperature is high or low.

  • (Without M Hybrid)

    The battery power is depleted.

    (With M Hybrid)

    The M Hybrid battery power is depleted.

  • Power consumption by the vehicle's electrical parts is high.

Engine restarts automatically while engine idling is stopped

Under the following conditions, the engine restarts automatically.

  • The i-stop OFF switch is pressed until the beep sounds.

  • The air conditioner is operated with the airflow mode in the position.

  • The temperature setting dial of the air conditioner is in the maximum heating or maximum cooling (A/C ON) position.

  • (Automatic air-conditioning system)

    The cabin temperature is largely different from the set temperature of the air conditioner.

  • The brakes are released slightly on a slope and the vehicle begins to move.

  • Two minutes have elapsed since the idling was stopped.

  • (Without M Hybrid)

    The battery power is depleted.

    (With M Hybrid)

    The M Hybrid battery power is depleted.

  • (Automatic transmission)

    Engine idling is stopped while the vehicle is stopped

    • The accelerator pedal is depressed with the selector lever in the D or M (not in second gear fixed mode) position.

    • The selector lever is shifted to the R position.

    • The selector lever is shifted from N or P position to D or M (not in second gear fixed mode) position.

    • The steering wheel is operated with the selector lever in the D or M (not in second gear fixed mode) position.

    • The selector lever is in the M position and the second gear fixed mode is selected.

    • The steering wheel is operated.

    Engine idling is stopped while driving

    • The selector lever is in a position other than the D position.

    • The accelerator pedal is depressed.

    • Sport mode is selected.

    • The steering wheel is operated.

  • (Manual transmission (With M Hybrid (European models)))

    • The shift lever is shifted to the R position.

    • The brake pedal is depressed with the shift lever in the neutral position.

    • The accelerator pedal is depressed.

    • The shift lever is shifted to a position other than neutral with the brake pedal released and the clutch pedal depressed.

    • The driver's seat belt is unfastened.

  • (Except European model)

    • (Manual transmission)

      With the shift lever in the neutral position, the driver's seat belt is unfastened, the driver's door is opened, or the bonnet is opened.

    • (Automatic transmission)

      With the selector lever in the P or N position, or the D/M range, the driver's seat belt is unfastened, the driver's door is opened, or the bonnet is opened.

Selector lever is operated while engine idling is stopped and the vehicle is stopped (automatic transmission)

If the selector lever is shifted from D or M (not in second gear fixed mode) position to N or P position while engine idling is stopped, the engine does not restart even when the brake pedal is released. The engine will restart if the brake pedal is depressed again or the selector lever is shifted to the D, M (not in second gear fixed mode), or R position. (For the purposes of safety, always keep the brake pedal depressed when shifting the selector lever.)

If the selector lever is shifted from the D or M (not in second gear fixed mode) to the N or P position, and the driver's seat belt is unfastened or the driver's door is opened, the engine restarts.

Battery terminals are disconnected

Engine idling may not stop right after the battery terminals are disconnected. In addition, if the battery is replaced, the i-stop functions must be verified. Consult an expert repairer (we recommend an Authorised Mazda Repairer).

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