Hiboy Controller & Display Settings: A User’s Guide

Your Hiboy’s display is more than a speedometer. It’s the control panel for how the controller delivers power, how the throttle responds, and how the motor behaves under load. Understanding the P-settings and display options lets you tailor the ride to your weight, terrain, and local regulations — without needing a laptop or a trip to a shop.

This guide walks through the most common Hiboy controller and display settings, what each parameter actually does, and which models share the same menu structure. You’ll also learn what to check before you start, how to verify your changes took effect, and when to stop troubleshooting and contact support.

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Before You Start: What You Need and What to Check First

The P-settings menu is accessible from the display, so you don’t need any special tools. But before you change anything, take 30 seconds to confirm your starting point:

1. Check your model and tire size. Look at the sidewall of your rear tire. If it says 8.5″ or 10″, note that down — you’ll need it for the wheel diameter setting (P06).

2. Note your current speed reading. Ride a short, flat stretch and compare the display speed to a phone GPS app. If they’re close, your wheel diameter is probably correct. If the display reads noticeably low or high, you may already have a P06 mismatch.

3. Make sure the battery is above 50%. Some Hiboy controllers ignore setting changes when the battery is low, because the controller prioritizes protecting the pack over accepting new parameters. If you’re below half charge, charge up first.

4. Write down your current settings. Before you change anything, cycle through the P-menu and record the existing values. If you make things worse, you’ll know exactly what to restore.

One more thing: the P-menu is not the same as the basic display mode. Pressing the power button while riding cycles through trip distance, odometer, and voltage readouts. The P-menu is a separate, hidden layer — you can’t accidentally enter it while riding, which is good, because changing P-settings mid-ride can cause the controller to reset or behave erratically.

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How to Enter the P-Menu and Change Settings

The procedure is consistent across the S2 line (S2, S2 Pro, S2 Max, S2 SE) and most other Hiboy models:

1. Power the scooter off completely. The display should be dark.

2. Press and hold the power button and the mode button simultaneously for about 5 seconds. The display will light up and show a P-code (usually P01).

3. Use the mode button to cycle through P-codes. Each press advances to the next parameter.

4. Use the power button to adjust the value. The current value will flash; each press changes it by one increment.

5. Power cycle the scooter (turn it off and on) to save and exit.

A note on saving: Some Hiboy models save changes automatically when you cycle to the next P-code. Others only save when you power cycle. To be safe, always power cycle before testing the scooter. If you change a setting and immediately ride without power cycling, the controller may revert to the old value mid-ride — which can feel like a sudden loss of power or a speed surge.

If the P-menu doesn’t open: Try holding the buttons for 8–10 seconds instead of 5. On some model years, the menu requires a longer press. If it still doesn’t open, check whether your model uses a different combination (some older S2 units use power + throttle instead of power + mode). If neither works, your display may be a newer revision with a different menu structure — skip to the troubleshooting section below.

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P-Settings: What Each Parameter Controls

Here’s what the most common codes do, in the order they typically appear:

P01: Backlight Brightness

Controls the display backlight intensity (typically 1–3). Setting it lower extends battery life slightly — the display draws from the same 36V pack. If you ride mostly in daylight, a lower setting also reduces glare at night.

P02: Units (Miles vs. Kilometers)

Switches the speedometer between mph and km/h. This is purely a readout change; it does not affect motor output or speed limiting.

P03: Voltage Setting

Sets the system voltage (24V, 36V, 48V, or 60V). Do not change this unless you’ve replaced the battery or controller. Setting it wrong can cause the battery gauge to read incorrectly and may trigger a low-voltage cutoff at the wrong state of charge. On a stock Hiboy, leave this at 36V.

Here’s what happens if you get this wrong: If you set P03 to 48V on a 36V battery, the controller will think the battery is nearly empty at around 40V — which is actually a full 36V pack. The scooter will shut down shortly after you start riding, even with a full charge. If you set it to 24V, the controller won’t cut off until the battery is deeply discharged, which can permanently damage the cells. This is the one setting where a mistake can cost you a battery.

P04: Sleep Timer

Determines how long the scooter stays “awake” after the last input before the display powers down. A shorter timer saves a small amount of standby current — useful if you leave the scooter parked for days between rides.

P05: PAS Level (Pedal Assist)

This is the big one for riders who want to tune acceleration. P05 sets the pedal assist level (0–5), which controls how aggressively the motor responds to pedal input. On Hiboy models with a throttle, this also influences the throttle’s initial punch.

• Level 0: No assist — motor off.
• Level 1–2: Gentle ramp-up, good for conserving battery and riding on wet pavement.
• Level 3–4: Balanced response, the default for most commuting.
• Level 5: Maximum assist — the controller delivers full current quickly. This drains the battery noticeably faster and makes the front wheel more likely to spin on loose surfaces.

P06: Wheel Diameter

Sets the wheel size in inches. This affects the speed calculation and odometer accuracy. Hiboy scooters typically ship with 8.5″ or 10″ tires. If you’ve swapped tires, adjust this to match — otherwise your speedometer will read high or low by the percentage difference in circumference.

A concrete example: If you have a 10″ tire but P06 is set to 8.5″, the display calculates speed based on a smaller wheel circumference. At an actual 15 mph, the display will read about 12.75 mph — roughly 15% low. Your odometer will also accumulate distance 15% slower than reality, which means your range estimates will be off. If you’re planning a long ride and relying on the odometer to gauge remaining battery, this error compounds over distance.

P07: Speed Limit (Max Speed)

Sets the controller’s top speed cap. On some models, this is labeled as a percentage of the motor’s rated max. Setting it to 100% unlocks full speed; lowering it to 70–80% is a practical way to extend range on long commutes without constantly feathering the throttle.

The trade-off: Lowering P07 from 100% to 70% doesn’t just cap your top speed — it also softens acceleration across the entire throttle range. The controller limits current draw, not just top speed. So you’ll get a gentler start from stops, which is actually useful in wet conditions or if you’re carrying a fragile load. But if you need quick acceleration to cross a busy intersection, the lower setting will feel sluggish.

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Display Units and Readouts: What You’re Actually Seeing

The Hiboy display shows more than speed. Here’s what each readout means and when it matters:

Battery Gauge vs. Voltage

The battery bar is a rough estimate, not a precise measurement. The controller tracks voltage under load, so the gauge can drop a full bar when you accelerate hard up a hill and recover when you level out. That’s normal — it reflects the voltage sag caused by current draw.

If you want a more accurate read, watch the voltage readout (if your model displays it) rather than the bar. A 36V battery at rest reads about 42V when full and cuts off around 30–31V. If your display shows voltage, that’s the number to trust for range planning.

The key difference: The battery bar is a lagging indicator — it responds to voltage changes after a delay, and it’s averaged to smooth out bumps. Voltage is a real-time measurement. When you’re climbing a long hill, the bar might show 2 of 5 bars while the voltage reads 35V. When you crest the hill and level out, the bar will climb back to 3 or 4 bars as the voltage recovers. That recovery is normal; it’s not a charging glitch.

Error Codes

Hiboy displays use a simple error code system. The most common ones:

• E01: Motor hall sensor fault — check the motor connector.
• E02: Throttle fault — the throttle isn’t returning to zero, or the connector is loose.
• E03: Brake lever engaged — the brake cutoff switch is stuck or the lever is pulled.
• E04: Controller overcurrent — usually from climbing a steep hill at low speed with a heavy load.
• E05: Controller overheat — let the scooter cool before riding again.

If you see an error code, power off, check the corresponding connector, and retry. Persistent E01 or E04 codes may indicate a controller or motor issue that needs a replacement part.

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Adjusting PAS and Throttle Response for Your Riding Style

The PAS setting (P05) is the most direct way to change how the scooter feels. Here’s how to match it to your situation:

If you’re a commuter on flat ground

Set PAS to 3. You’ll get enough acceleration to keep up with traffic without constantly topping out the throttle. This also gives you the best range per charge — the motor isn’t drawing peak current on every start.

If you’re a heavier rider or ride hills

Set PAS to 5. The controller will deliver more current earlier in the pedal stroke, which helps maintain momentum on inclines. The trade-off is heat: sustained full-current draw on a long hill can trigger the overheat error (E05) on hot days. If that happens, back off to PAS 4 and accept a slightly slower climb.

A realistic branch point: After you change P05 and test ride, pay attention to how the scooter feels in the first 10 seconds from a dead stop. If the front wheel lifts or skitters on loose pavement, the assist is too aggressive for your surface — drop to the next lower level. If the scooter feels sluggish and you’re on flat ground, bump up one level. You should feel a clear difference between adjacent levels; if you don’t, the change may not have saved (see the power-cycle note above).

If you’re riding in wet conditions

Set PAS to 1 or 2. The gentler ramp-up reduces the chance of wheelspin on slick pavement, especially on the rear hub motor. This is a safety decision, not a performance one — full throttle on wet leaves or painted crosswalks is how most low-speed spills happen.

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Model-Specific Notes: S2 vs. S2 Pro vs. S2 Max

The settings menu is similar across the S2 line, but there are a few differences worth knowing:

S2 and S2 SE

These use the standard 36V controller with a 250W motor. The P-menu includes P01–P08, with P07 (speed limit) available. The display is a basic LCD with a single-line readout. You cannot adjust the throttle curve beyond the PAS setting — there’s no separate “start mode” or “turbo” option.

S2 Pro

The Pro adds a higher-capacity battery and a slightly more powerful controller. The P-menu is the same, but the speed limit setting (P07) has a wider range. The Pro also supports a higher peak current, so you’ll notice the battery gauge drops more aggressively under hard acceleration compared to the base S2.

S2 Max

The Max uses a 10″ tire instead of 8.5″. This means the wheel diameter setting (P06) must be set to 10 — if you ever reset the controller, double-check this. A mismatch here will make the speedometer read about 15% low, which also throws off the odometer and range estimates.

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Verifying Your Changes and Common Mistakes

After you’ve changed settings, here’s how to confirm they took effect:

1. Power cycle the scooter (turn off, wait 3 seconds, turn on).

2. Re-enter the P-menu and check that your values are still there. If they reverted, the save didn’t take — repeat the change and power cycle again.

3. Test ride in a safe area. For P05 (PAS), you should feel a clear difference in acceleration within the first throttle application. For P06 (wheel diameter), compare the display speed to a GPS app at a steady cruise. For P07 (speed limit), find a flat stretch and check the top speed.

Common mistake — changing P03 accidentally: The voltage setting is usually near the middle of the P-menu, and it’s easy to bump it while scrolling through other parameters. If your battery gauge suddenly reads wrong or the scooter cuts out early, check P03 first. It should be 36V on all stock Hiboy models. A quick way to spot this: if the battery bar shows full when you know the battery is half charged, P03 is likely wrong.

Common mistake — forgetting the power cycle: As mentioned above, some models only save settings on power-off. If you change P05 and immediately ride, the scooter may use the old value. This is the most common reason riders think their settings “aren’t working.”

Common mistake — tire pressure affecting P06: Even with the correct wheel diameter setting, underinflated tires will make the speedometer read slightly low. A tire at 20 psi instead of the recommended 40 psi has a smaller effective rolling circumference. This won’t cause a huge error, but it can make a GPS comparison look like a P06 problem when the setting is actually fine.

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When to Stop Troubleshooting and Contact Support

Most settings changes are reversible and low-risk. But there are clear thresholds where you should stop and get professional help:

Stop and contact Hiboy support if any of the following happen:

• The scooter won’t power on after a settings change. If you changed P03 (voltage) and the display stays dark, the controller may be in a protection state. Try charging for 30 minutes, then power on. If it still won’t start, the controller may need replacement — this is not a DIY fix.
• You see a persistent E01 or E04 error on flat ground. A one-time E04 on a steep hill is normal. But if E04 appears on flat ground at moderate speed, the controller is drawing more current than it should — likely a wiring issue or a failing motor. Continuing to ride can damage the controller or motor.
• The display shows erratic values (speed jumping randomly, battery gauge flickering between full and empty, P-codes cycling on their own). This points to a wiring fault or a failing display unit, not a settings issue.
• The motor cuts out under load and the display shows no error code. This can indicate a loose phase wire connection inside the controller housing — opening the controller voids your warranty and risks damaging the PCB if you don’t have experience with electronics.

A concrete threshold: If you’ve changed P05 and P07 and the scooter still feels identical — no change in acceleration or top speed — stop adjusting settings. The issue is likely a controller that isn’t saving changes (faulty display/controller communication) or a controller that’s already at its physical limit. Continuing to cycle through settings won’t help and could leave you with an unintended change you didn’t track.

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Resetting to Factory Defaults

If you’ve changed settings and want to start fresh, most Hiboy controllers support a factory reset:

1. Power off the scooter.

2. Enter the P-menu (hold power + mode for 5 seconds).

3. Cycle to the last P-code (usually P09 or P10, depending on the model).

4. Set it to 1 and power cycle.

This restores all parameters to the manufacturer defaults. After a reset, verify P03 (voltage) is still 36V and P06 (wheel diameter) matches your tire size — these are the two settings most likely to cause problems if they drift.

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FAQ

Why does my Hiboy display show a lower speed than my phone’s GPS?

The display calculates speed from wheel rotations using the wheel diameter setting (P06). If the tire is underinflated or the diameter setting is wrong, the display will read low. GPS is generally more accurate for absolute speed, but it lags slightly during rapid acceleration.

Can I unlock a higher top speed by changing P07?

P07 caps the speed, but it cannot exceed the motor’s physical limit. On a 250W motor with a 36V battery, the practical ceiling is around 15–18 mph regardless of the setting. Raising P07 to 100% only matters if a previous owner had lowered it.

My display shows E04 when I climb hills. Is something broken?

E04 (overcurrent) is the controller protecting itself from drawing more current than the wiring can safely handle. It’s common on steep hills with a heavy rider. Reduce PAS to 3 or 4, and try to maintain momentum before the climb. If it happens on flat ground, check the motor connector for corrosion.

Does lowering the backlight brightness (P01) actually save battery?

Yes, but marginally. The display draws a few watts at most, compared to 250–500W from the motor. It’s worth doing if you ride long distances, but it won’t meaningfully extend range compared to adjusting PAS or speed limit.

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Understanding the settings menu turns your Hiboy from a fixed-ride scooter into a tunable tool. The most impactful changes are P05 (PAS) for acceleration feel, P06 (wheel diameter) for accurate speed readings, and P07 (speed limit) for range management. Start with those three, and leave the voltage and sleep timer settings alone unless you have a specific reason to change them. Always power cycle after changes, verify with a short test ride, and keep a record of your original values so you can restore them if needed.