Shimano STEPS error W209: Travel data could not update on display

Shimano STEPS (E5000, E6100, E7000, E8000, EP6, EP801)WarningSafe to keep riding

The cycle computer in the display failed to write new trip data such as distance, average speed and elapsed time to its memory. The motor, walk assist and gear changes continue to work, but the trip screen may freeze, show zeros or stop logging until the warning clears. Shimano lists this as a recoverable warning rather than a system fault, so the bike remains rideable in the meantime.

Drive system	Shimano STEPS (E5000, E6100, E7000, E8000, EP6, EP801)
Severity	Warning
Keep riding?	Safe to keep riding
Typical cost	A dealer reset or firmware update typically runs €30 to €60, a corroded display harness repair €60 to €120, and a replacement SC-series display €180 to €350 fitted.

Likely causes

Firmware glitch after a partial shutdown or battery removal mid-ride
Moisture or corrosion in the display cable or junction at the handlebar
Intermittent power drop from a worn battery mount or dirty contact pins
Internal memory fault in the cycle computer or SC-E6100/E7000 display
Conflict between outdated drive unit firmware and current display firmware

How to fix Shimano STEPS error W209

Stop the bike in a safe place and switch the system off using the battery power button, not just the display
Wait at least 15 seconds so the drive unit fully powers down
Press the battery power button again to boot the system and watch whether W209 clears on the start-up screen
Ride for 2 to 3 km and confirm that trip distance and average speed are incrementing normally
Remove the display, inspect the cable plug at the back for green corrosion or a loose fit, and reseat it dry
Update the drive unit and display through Shimano E-Tube Project if a newer firmware is available
If W209 returns on the next ride, take the bike to an authorised Shimano dealer for a diagnostic read

Go to a dealer if: A dealer is needed when W209 returns immediately after every power cycle, which usually points to a display memory fault or a wiring issue that needs the E-Tube diagnostic tool.
Warranty: A genuine component failure inside the two-year Shimano warranty period is normally covered, but water ingress, crash damage and worn connectors are treated as wear and billed to the owner.
Typical cost: A dealer reset or firmware update typically runs €30 to €60, a corroded display harness repair €60 to €120, and a replacement SC-series display €180 to €350 fitted.

Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.

Frequently asked

Can I reset Shimano error W209 myself?

Yes. Hold the battery power button until the system fully shuts down, wait about 15 seconds, then power it back on. If W209 does not return within a few minutes of riding, the reset has worked.

Is it safe to keep riding with W209 showing?

Yes. W209 is a warning, not a cutoff, so motor assist, walk mode and lights all keep working. Only the trip logging is affected, so ride home and deal with it when convenient.

How much will it cost to fix W209 at a shop?

If a power cycle solves it, the cost is zero. A dealer firmware flash is usually €30 to €60, while a replacement display fitted and programmed runs €180 to €350; warranty claims inside two years with no water or crash damage are normally free.

Related Shimano STEPS codes

E010 · Drive unit internal fault detected E011 · Shimano Steps general system error E012 · Pedal Sensor Did Not Initialise E020 · Communication fault between battery and drive unit

Manuals and video

Official source: si.shimano.com

Not an official Shimano STEPS document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.