Intelligent Brake Assist (IBA) system (if so equipped)

Intelligent Brake Assist (IBA) system (if so equipped)  - Starting and driving - Infiniti QX Owners Manual - Infiniti QX

The Intelligent Brake Assist (IBA) system warns the driver by a warning light and chime when there is a risk of a collision with the vehicle ahead in the traveling lane and the driver must take avoidance action immediately. The system helps reduce the rear-end collision speed by applying the brakes when the system judges that the collision cannot be prevented. The IBA system will function when your vehicle is driven at speeds of approximately 10 MPH (15 km/h) and above, and when your vehicle is driven at speeds approximately 10 MPH (15 km/h) faster than the vehicle ahead.

The IBA system uses a distance sensor A

The IBA system uses a distance sensor A located below the front bumper to measure the distance to the vehicle ahead. When the system judges that your vehicle is getting close to the vehicle ahead in the traveling lane, the vehicle ahead detection indicator on the instrument panel blinks and a warning chime sounds. The IBA system will be turned on/off by pushing the IBA OFF switch. The IBA OFF indicator light will illuminate when the system is turned off.

Precautions on IBA system

► The IBA system is not a collision WARNING

► The IBA system is not a collision avoidance system. It is the drivers responsibility to stay alert, drive safely and be in control of the vehicle at all times.
► As there is a performance limit, the system may not provide a warning or braking in certain conditions.
► The system will not detect the following objects: Pedestrians, animals or obstacles in the roadway
Motorcycles traveling offset in the traveling lane
Oncoming vehicles in the same lane
► The system will not detect another vehicle under the following conditions: When the sensor gets dirty and it is impossible to detect the distance from the vehicle ahead. When driving into a strong light (for example sunlight)

► The sensor generally detects the signals returned from the reflectors on a vehicle ahead. Therefore, the system may not function properly under the following conditions: When the reflectors of the vehicle ahead are positioned high or close to each other (including a small vehicle such as motorcycles).
When the sensor gets dirty and it is impossible to detect the distance from the vehicle ahead.
When the reflectors on the vehicle ahead are missing, damaged or covered.
When the reflectors of the vehicle ahead are covered with dirt, snow or road spray.
When visibility is low (such as rain, fog, snow, etc.).
When snow or road spray from traveling vehicles is splashed.
When dense exhaust or other smoke (black smoke) from vehicles reduces the visibility of the sensor.
When excessively heavy baggage is loaded in the rear seat or the luggage room of your vehicle.
When abruptly accelerating or decelerating.
On a steep downhill slope or on roads with sharp curves.
When there is a highly reflective object near the vehicle ahead (for example being very close to another vehicle, signboard, etc.).
When towing a trailer or other vehicle.

► Depending on certain road conditions (curved or beginning of a curve), vehicle conditions (steering position or vehicle position), or the preceding vehicles conditions (position in lane, etc.), the system may not function properly.
► The system may not function in offset conditions.
► The system may not function when the distance to the vehicle ahead is extremely close.

WARNING

► The system may detect highly reflective WARNING

► The system may detect highly reflective objects such as reflectors, signs, white markers and other stationary objects on the road or near the traveling lane. In extreme conditions, detection of these objects may cause the system to function.
► The system is designed to automatically check the sensors functionality. If the sensor is covered with ice, a transparent or translucent plastic bag, etc., the system may not detect them. In these instances the system may not be able to warn the driver properly. Be sure to check and clean the sensor regularly.
► Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
► A sudden appearance of a vehicle in front (for example it abruptly cuts in) may not be detected and the system may not warn the driver soon enough.
► The system will be cancelled automatically with a beep sound and the IBA warning light will illuminate under the following conditions: When the sensor window is dirty
When the system malfunctions

If the IBA OFF indicator light illuminates with a beep sound, pull off the road to a safe location, stop the vehicle and turn the engine off. Check to see if the sensor window is dirty. If the sensor window is dirty, clean it with a soft cloth and restart the engine. If the sensor window is not dirty, restart the engine. If the IBA OFF indicator light continues to illuminate even if the IBA system is turned on, have the system checked by an INFINITI retailer.

IBA system operation

The IBA system will function when your

The IBA system will function when your vehicle is driven at speeds of approximately 10 MPH (15 km/h) or above, and when the vehicles speed is approximately 10 MPH (15 km/h) faster than that of the vehicle ahead. To turn the system off or on, push and hold the IBA OFF switch B (located on the lower side of the instrument panel) for more than 1 second after starting the engine. When the IBA OFF indicator light A on the instrument panel turns off and the IBA OFF switch is pushed, the system will turn off and the IBA OFF indicator light will illuminate. When the IBA OFF switch is pushed again, the system will turn on and the IBA OFF indicator light will turn off. The IBA system will remain in the last ON or OFF state it was left in until it is manually changed by pressing the IBA OFF switch. Illumination of the IBA OFF indicator light without a beep sound is an indication that the IBA system is temporarily unavailable. It will occur under the following conditions:
► When driving into a strong light (for example, sunlight)
► When the 4WD shift switch is in the 4H or 4L position (for 4WD models) The IBA OFF indicator light will turn off when the system returns to its normal operating conditions. For the sensor maintenance, see Intelligent Cruise Control (ICC) system earlier in this section.

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