What does B gear mean in Lexus?

In Lexus hybrids and some plug-in hybrids, B gear designates an engine-braking mode that increases deceleration and regenerative braking. It is mainly used on downhill stretches or when you want stronger deceleration without pressing the brake pedal.

What B gear does in Lexus hybrids

B mode engages the vehicle’s engine braking and maximizes energy recovery through the hybrid system. When activated, the engine slows the car more noticeably than in normal Drive, and the system can send more of the decelerating energy back to the high-voltage battery. This helps reduce brake wear and can improve control on steep grades. The effect is most pronounced at lower speeds and light-to-moderate grades; at highway speeds you may hear more engine noise as the engine works to slow the car.

How to activate B mode

To engage B mode on compatible Lexus models, use the gear selector as described below.

• Move the shift lever from D to B to engage engine braking.


• On some models, B is a detent behind the D position or requires a light push; consult your owner's manual if unsure.


• To resume normal driving, shift back to D (or P) as needed; in most models, B remains active until you shift out of it.


• Drive smoothly when using B—avoid abrupt throttle inputs, especially at higher speeds.

Conclusion: In B mode, the car relies more on engine braking and regenerative energy capture to slow the vehicle, reducing brake wear and increasing control on descents. It is not intended for sport driving or everyday highway cruising.

When to use B mode

Common situations where B mode is beneficial:

• Descending long or steep grades where you want steady speed without overheating brakes.


• When you want to maximize energy regeneration during deceleration in hybrid systems.


• On mountainous roads or long descents where you prefer reduced brake usage and smoother control.

Notes: Use B mode selectively; it can make the drivetrain feel different and may increase engine noise at times. For normal driving, especially on flat highways, Drive (D) is usually recommended. If your model supports B, check the owner's manual for exact behavior.

Model coverage and caveats

Availability of B gear varies by model and year. It is commonly found on Lexus hybrids with electronic transmissions but is not guaranteed on every model. Some plug-in or multi-hybrid configurations may implement B differently. Always verify with your vehicle’s manual or a Lexus dealer for your specific model and year.

• Not all Lexus models offer a B setting; check your model year and market.


• The exact deceleration and battery-regeneration behavior can differ between models.


• B mode is a driving aid for energy management, not a substitute for safe braking in emergencies.

Conclusion: Knowing whether your Lexus has B gear and how it behaves helps you optimize braking, energy recovery, and control on descents, while ensuring you stay within recommended operating guidelines for your vehicle.

Summary

B gear in Lexus denotes an engine-braking mode that increases deceleration and enhances regenerative braking during deceleration. It’s useful on downhill descents and when you want to reduce brake wear, but it’s not meant for sport driving. Use it selectively, and switch back to D for normal driving. Availability and exact behavior vary by model and year, so consult your owner’s manual for specifics.

What does b stand for in Lexus?

And it's not the best. Um vehicle to be in in this kind of driving right now. But there is a little indicator right here that says B right there and that allows me to drive the vehicle.

What is B gear on Lexus?

Position B introduces engine braking and can be used to help slow the vehicle, such as when descending a hill. But we do not recommend leaving the car in this mode for normal driving as it can use more fuel over time.

What happens if I drive in B all the time?

Tip: B mode is not for everyday flat-road driving—it can make your hybrid slightly less fuel-efficient if used all the time, as it prioritises engine braking over coasting.

When should I use B mode?

Use "B" gear (or "Brake" mode) in hybrid vehicles for strong engine braking, primarily when driving down steep hills to maintain speed and save your brakes. It can also be used for stop-and-go traffic and approaching red lights to improve energy recovery, which recharges the battery more efficiently than regular "D" (Drive) mode and reduces wear on the friction brakes.
 
This video explains what the 'B' gear is and when to use it: 1mFred Anderson ToyotaYouTube · Mar 26, 2021
When to use B gear

• On steep or long descents: Use "B" mode on downhills to help slow the car and maintain a steady speed without relying solely on the brake pedal, which can overheat. 
• In heavy traffic: In stop-and-go situations, "B" mode allows for smoother deceleration and increases regenerative braking, recharging the battery more effectively. 
• When approaching a stop: You can shift to "B" mode in advance of a red light or stop sign to slow the car gently and conserve brake life. 

Why it's beneficial

• Maximizes regenerative braking: By increasing engine drag, the system captures more kinetic energy to recharge the hybrid battery, which can improve efficiency and extend electric driving range. 
• Extends brake life: Using "B" mode for engine braking reduces the wear and tear on your traditional brake pads, leading to lower maintenance costs over time. 
• Offers better control: The driver experiences more resistance, which provides greater control, especially in situations where you need to slow down consistently without constant braking. 

You can watch this video to learn how to use Toyota Hybrid B gear: 54sPeter Finn the Car DoctorYouTube · Feb 4, 2024