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.

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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)/Traffic Jam Assist (TJA))

  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/TJA stop hold control)

  1. When the vehicle is stopped by the MRCC with Stop & Go function/TJA, 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 stopped by the MRCC with Stop & Go function/TJA, the engine will automatically restart if the selector lever is 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 and the vehicle comes to a stop, the i-stop function will operate and continue to operate even if the brake is released (except when driving in the R or M position second gear fixed mode).

  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/TJA)

  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/TJA)

  1. Engine idling stops when the vehicle has decelerated to about 20 km/h (12 mph) or slower while in headway control using the MRCC with Stop & Go function/TJA.

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

Operation conditions

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

  • The engine is warmed up.

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

  • The engine is started with the hood closed.

  • All doors, liftgate, and hood 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 climate control 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.

  • (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 speed of 20 km/h (12 mph) or faster after engine idling stops.

    • 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 reason such as the vehicle has not been driven for a long period.

  • (With M Hybrid)

    The M Hybrid battery power is depleted for some reason 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 reason such as for battery replacement.

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 climate control 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.

  • (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.

    • 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 hood is opened.

    • The steering wheel is operated.

  • (Engine idling is stopped while driving (With M Hybrid))

    • 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.

    • The shift lever is shifted to the R position.

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

    • The accelerator pedal is depressed.

Selector lever is operated while engine idling is stopped

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 have been disconnected

Engine idling may not stop right after the battery terminals have been disconnected. In addition, if the battery is replaced, the i-stop functions must be verified. Consult an Authorized Mazda Dealer.

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