What does the letter B represent on a hybrid vehicle's gear lever?

The lever system in automatic vehicles features various letters and nomenclatures. In this instance, we will focus on the letter B and its meaning, especially in the context of hybrid cars. This letter can generate confusion, as it adds to the more common ones like P for park, R for reverse, and D for drive.

When observing the lever in a Toyota hybrid, we will find the letters R, N, D, and B. Additionally, the P button is located next to the lever. To shift into neutral, the lever must be moved to the left, which allows the vehicle to be towed or moved without gear while it remains on. If moved to the left and upward, reverse is activated, facilitating backward movement. To put the car in drive mode, simply shift it to the left and then down.

The B position is particularly important, as it indicates the use of engine braking. This mode is useful on steep inclines, such as mountains, as it helps prevent brake overheating. In the case of hybrid vehicles, activating B mode allows the electric motor to generate resistance, which in turn helps to charge the batteries while excess energy is directed to the electric motor, keeping the combustion engine idling. This process contributes to extending the lifespan of the brakes and provides smoother handling.

Despite the ease of driving that automatic vehicles offer, precautions must be taken to care for the transmission. It is crucial to place the lever in the N position if the vehicle needs to be towed due to a breakdown, to avoid damaging the gearbox. It is also advisable to make shifts between P, D, and R only when the car is completely stopped, as these transitions are not meant to be made while in motion. In flat terrain, it is best not to use B mode, which is intended for inclined surfaces, and finally, ensure you switch to P only when you are stopped, as doing so while in motion could cause a jolt that would damage the vehicle.