Is it safe to shift from D to S while driving?

Yes. In most modern automatic transmissions, you can switch from Drive (D) to Sport (S) while the car is moving, and it’s designed to be used when conditions allow for a more engaging drive.

The following sections explain what D and S do, the safety considerations to keep in mind, and practical steps for using Sport mode without compromising control.

What D and S mean in modern automatic transmissions

Drive (D) is the standard mode that prioritizes smooth shifting, fuel efficiency, and comfortable cruising. Sport (S) mode adjusts the transmission’s behavior to deliver quicker throttle response, higher engine revs before upshifts, and longer hold on lower gears to improve acceleration and responsiveness. The exact behavior varies by make and model, and some cars offer additional Sport variants (such as Sport+, or manual shift modes) along with optional paddles. Always refer to your owner's manual for model-specific details.

Safety considerations when switching to S

Before discussing the key safety considerations, here is a concise overview of how sport mode can affect driving dynamics:

• Sharper throttle response and higher engine RPMs can make acceleration feel more immediate.


• The transmission may stay in lower gears longer, which can increase engine braking and responsiveness during cornering or overtaking.


• There is a greater potential for wheelspin on wet, icy, or loose surfaces due to the enhanced power delivery.


• Sport mode typically uses more fuel and can raise cabin noise due to higher revs and more aggressive shifts.


• Some vehicles may impose speed or traction-related restrictions on S mode; consult your manual for model-specific behavior.

In practice, Sport mode is safe when you’re in appropriate conditions—on dry roads, with adequate space for merging or overtaking, and when you’re prepared for a more immediate throttle response. It’s less ideal in heavy traffic, rain, or snow where traction is a concern.

Overall, Sport mode can enhance performance and driver engagement, but it requires attention to road conditions and vehicle behavior. Returning to Drive after a spirited maneuver helps restore smoother shifting and better fuel economy.

Practical guidelines for using S mode safely

To use S mode effectively and safely, follow these steps:

1. Consult your owner's manual to confirm that shifting to S is supported on the move and to understand any model-specific limitations.


2. Keep both hands on the wheel and maintain situational awareness of surrounding traffic and road conditions.


3. Use S mode for overtaking, merging, or when you want more responsive acceleration, then return to D once the maneuver is complete to regain smoother, economical driving.


4. Shift to S smoothly (usually by moving the selector to S or engaging the sport setting) and avoid forcing changes at high speeds or in congested traffic.


5. Be mindful of slippery or uneven surfaces; if traction is compromised, consider staying in D or selecting a lower gear in manual shift modes if available.

Following these steps helps maintain driver control and reduces risk when using Sport mode mid-drive.

Summary

Shifting from D to S is a common feature of modern automatics and can offer quicker response and a more engaging drive for overtaking or spirited driving. It is generally safe when done at appropriate speeds and conditions, but it increases engine revs, throttle response, and fuel use, and can raise the risk of wheelspin on slippery surfaces. Always check your vehicle’s manual for model-specific guidance and switch back to D when you want smoother, more economical operation.

Can you shift from D to sport mode while driving?

Yes, you can switch from D to S mode while driving. Most cars with an automatic transmission allow you to switch between different driving modes while the car is in motion. Drive safely.

Can I switch to S mode while driving?

Yes, you can switch to sport mode while driving, as it is a software-based change that is safe and won't damage your car. This is because the car's electronic control unit (ECU) manages the change, which alters throttle response, transmission shift points, and steering feel. 
This video explains why you can switch to sport mode while driving: 1mTankensteinYouTube · Dec 17, 2019
How it works

• Software-based change: The button sends a signal to the vehicle's computer, which then changes the car's driving parameters. 
• Adjusts car's feel: Shifting to sport mode alters the way the car responds to your inputs, making it feel more responsive. 
• Changes shift points: It tells the transmission to hold gears longer before shifting up. 
• Adjusts steering: It may also add more artificial weight to the steering for a more direct feel. 

When to use it

• For quick maneuvers: It's ideal for situations like overtaking or merging onto a highway. 
• For hilly or mountainous terrain: It can be useful for better control on steep inclines. 
• For a sportier drive: Many drivers use it for a more engaging driving experience. 

This video explains the benefits of using sport mode: 1mHistory of Simple ThingsYouTube · May 14, 2025
Important considerations

• Some sources suggest taking your foot off the gas briefly when switching, although it's not always necessary. 
• This is different from manual shifting, where you would manually change gears. 
• Ensure you are not in a gear-specific manual mode (like "Drive" or "Low") and are ready for the change in throttle response. 

You can watch this video to learn how to use sport mode: 56sFord Motor CompanyYouTube · Jan 28, 2017

Is it bad to change drive modes while driving?

It is generally safe to change drive modes while driving, as modern cars are designed for this, but you should always release the accelerator and do so when the car is at a steady speed or stopped to avoid sudden changes in acceleration or steering. Shifting while stationary is safest, and while driving, releasing the gas pedal ensures a smoother transition. 
This video explains what happens when you change drive modes while driving: 51sTankensteinYouTube · Dec 17, 2019
Best practices

• Release the accelerator: Always take your foot off the gas pedal before changing modes for a smooth transition and to prevent a sudden change in performance. 
• Avoid shifting during hard braking or acceleration: It's best to do this when the car is at a steady speed, like cruising on the highway, or when coming to a complete stop. 
• Be aware of other mode changes: Some modes can significantly alter steering feel, so be prepared for the change, especially if you have a loose grip on the steering wheel. 
• Consult your owner's manual: While generally safe, your car's specific manual is the definitive source. Some systems or vehicle types may have different recommendations. 
• Avoid shifting into Neutral while moving backwards: While going from D to N while moving forward is fine, shifting into Neutral while backing up can damage the transmission if done at high speed. 

This video explains what the different drive modes do: 56sHistory of Simple ThingsYouTube · Aug 4, 2025
Potential issues to be aware of

• Sudden changes in performance: Sport mode, for example, can make the steering feel tighter or the throttle more responsive, which can be surprising if you're not expecting it. 
• Potential for error codes: Some aftermarket devices like a "Pedal Commander" are not designed to be adjusted while driving and can trigger check engine lights, advises this Pedal Commander article. 

Can I shift from D to S?

Is it Safe to Switch from D to S While Driving? Yes, it's safe to switch from Driving mode to Sports mode while you're driving. Modern vehicles typically allow safe switching between drive & sport mode while the vehicle is in motion.