Toyota bZ4X Charging at Mer

Toyota bZ4X Charger Won't Start? How to Fix It

You have connected your Toyota bZ4X to a charger but the session will not start. The display shows an error, the car is not responding, or you are stuck on the authentication screen. Most charging start failures have a straightforward fix. Here is how to work through it.

Symptoms

• Charger display shows an error after plugging in
• CCS2 connector inserted but the bZ4X shows no charging activity
• Charge port indicator light stays off or blinks a warning color
• Charger says 'waiting for vehicle' indefinitely
• Type 2 AC cable locked in but no power delivered

What to Do

1. 1

   Read the charger display

   Check for error messages, authentication prompts, or status indicators. This tells you whether the charger, the car, or the payment is the issue.

2. 2

   Unplug and replug the connector

   Remove the CCS2 or Type 2 connector, wait 15 seconds, and reinsert it firmly into the bZ4X's charge port. Ensure it clicks and locks.

3. 3

   Authenticate with the charger

   Tap your RFID card, start the session in the network app, or try contactless payment. Try both pre-plug and post-plug authentication.

4. 4

   Check for charging timer

   In the bZ4X's infotainment, check charging settings for any active timer or schedule. Disable it to allow immediate charging.

5. 5

   Inspect and clean the charge port

   Look inside the bZ4X's charge port for ice, debris, or moisture. Clear gently with a soft cloth. Make sure the port flap is fully open.

6. 6

   Try another charger

   If the charger is faulty, try another stall or station. If other cars charge fine at the same stall, the issue may be specific to your bZ4X.

Toyota bZ4X Charging Payment Failed? Quick Fixes

You are at a charger with your Toyota bZ4X and the payment will not go through. If you are new to public EV charging after years of Toyota petrol cars, the payment landscape can be especially confusing. Multiple apps, RFID cards, and contactless options vary by station. Here is how to sort it out.

Symptoms

• RFID card not recognized when tapped on the charger
• Charging app shows payment error or transaction declined
• Contactless bank card rejected at the charger
• Charger prompts for authentication but nothing works
• Session starts then stops immediately due to billing error

What to Do

1. 1

   Check accepted payment methods

   Look at the charger for payment logos, QR codes, and instructions. Identify which RFID cards, apps, or bank card types are accepted.

2. 2

   Try the network's app

   Scan the QR code on the charger or find the network's app. Register, add a payment method, and start the session through the app.

3. 3

   Try alternative payment methods

   Switch between RFID, contactless, and app payments. A roaming provider like Plugsurfing, Shell Recharge, or Chargemap can cover many networks with one card.

4. 4

   Check for bank holds or declines

   Open your banking app to look for blocked or pending transactions. If the pre-authorization was declined, contact your bank or try another card.

5. 5

   Try a different stall

   The card reader on one stall may be broken while the next one works. Try the adjacent stall before giving up.

6. 6

   Find an alternative station

   Use your charging app to find a nearby station where your payment methods are known to work. Filter by network or payment type.

Toyota bZ4X Charging Slowly? AC and DC Speed Guide

Your Toyota bZ4X is charging slower than you expected, and if you are on an AC charger, it might truly be slower than other EVs. The bZ4X only supports 6.6kW AC charging, which is significantly slower than the 11kW most competitors offer. On DC, it can reach 150kW, but several factors affect actual speed. Here is what you need to know.

Symptoms

• AC charging stuck at 6.6kW even on an 11kW or 22kW charger
• DC fast charging well below 150kW on the display
• Estimated AC charging time much longer than expected
• Charging speed drops sharply above 60-70% SOC
• Cold weather charging is significantly slower than summer

What to Do

1. 1

   Determine if you are on AC or DC

   If you are on a Type 2 AC charger, 6.6kW is the maximum the bZ4X can accept. This is a permanent hardware limitation. A full charge from empty takes about 9.5 hours on AC. For faster charging, use a CCS2 DC fast charger.

2. 2

   Activate preconditioning for DC charging

   Set the fast charger as your destination in the bZ4X's navigation system. This tells the car to precondition the battery, warming it to optimal temperature before arrival.

3. 3

   Check the charger's rated power

   The bZ4X can pull up to 150kW DC. If the charger is rated at 50kW, that is all you will get. Look for chargers rated 150kW or higher.

4. 4

   Arrive at a lower SOC for DC

   Plan to arrive at DC chargers between 10-20% SOC. The bZ4X delivers peak power in the lower SOC range. Above 60-70%, the taper reduces speed significantly.

5. 5

   Avoid power-sharing stalls

   Choose a stall where no adjacent car is charging. Power sharing can significantly reduce your allocation.

6. 6

   Accept the 6.6kW AC reality

   For overnight or workplace charging, 6.6kW adds roughly 40km of range per hour. A 7kW wallbox is all you need at home. Installing a more powerful unit will not help the bZ4X charge faster.

Station occupancy not updating in the app

The Mer app shows a station as available, but when you arrive, all connectors are occupied or out of service. The real-time status in the app can lag behind by several minutes.

Symptoms

• App shows "Available" but all connectors are in use when you arrive
• App shows a station as occupied but the chargers are visibly free
• Connector status flickers between available and occupied in the app
• Recently freed connectors still show as "In use" in the app for several minutes

How to Fix It

1. 1

   Pull to refresh the station detail in the Mer app

   On the station page, pull down to force a status refresh. The app does not always update automatically, and a manual refresh often shows the correct status.

2. 2

   Close and reopen the app

   Force-close the Mer app and reopen it. This clears any cached station data and pulls a fresh status from the server.

3. 3

   Check a third-party app for a second opinion

   Apps like Plugsurfing, A Better Route Planner, or Google Maps sometimes pull fresher data from Mer's backend. Use one of these to verify availability if the Mer app seems wrong.

4. 4

   Drive to the station if it is nearby

   If the station is less than five minutes away, it is often faster to just go and check. Occupancy can change in the time it takes to troubleshoot the app.

Third-party RFID card rejected

You are trying to authenticate with an RFID card from a roaming provider like Plugsurfing, NewMotion, or Virta, but the Mer charger rejects it. Not all third-party RFID cards are accepted at every Mer station.

Symptoms

• Charger screen shows "Card not recognized" after tapping
• The charger beeps once but nothing happens
• Your RFID card works at other networks but fails at Mer
• The charger prompts you to try again but repeated taps do not help

How to Fix It

1. 1

   Hold the card flat against the reader for three full seconds

   Do not tap and remove quickly. Some Mer readers need a longer hold to register the card. Keep it pressed flat against the RFID symbol.

2. 2

   Check if your roaming provider covers Mer stations

   Open your roaming provider's app and search for this specific Mer station. Some providers have roaming agreements with Mer but not for every station type or region.

3. 3

   Use the Mer app instead

   Download the Mer app if you do not have it. Create an account and add a payment method. You can start the session through the app even if your RFID card does not work.

4. 4

   Try contactless bank card payment

   Newer Mer stations have a contactless payment terminal. Look for a card reader with the contactless payment symbol. Tap your bank card or phone to start.

5. 5

   Try a Mer-issued RFID card for future visits

   You can order an RFID card directly from Mer through their app or website. Mer's own cards are accepted at all Mer stations without roaming issues.

Charger screen showing error but no error code

The charger screen displays a generic error message like "Error" or "Fault" without any specific code or explanation. This makes it hard to know if the problem is temporary or if the unit is broken.

Symptoms

• Charger screen shows "Error" or a red warning icon with no further detail
• The error appears before you even try to authenticate
• The error appears after plugging in but before power delivery starts
• Screen alternates between the normal start screen and the error message

How to Fix It

1. 1

   Unplug the connector and wait 30 seconds

   Some Mer chargers show transient errors after a previous session ended abnormally. Unplugging and waiting gives the charger time to reset its internal state.

2. 2

   Try the other connector on the same unit

   If the station has a second CCS2 connector, try that one. A hardware fault on one connector does not always affect the other.

3. 3

   Check if other cars are successfully charging at the station

   If nobody at the station is charging, the entire station may be down. If others are charging fine, the issue is limited to your connector.

4. 4

   Report the faulty unit in the Mer app

   Open the Mer app, find the station, and report the issue. Include which connector number has the error. This helps Mer send a technician and warns other drivers.

5. 5

   Move to a different station

   A charger with a persistent generic error is unlikely to start working on its own. Use the Mer app to find the nearest alternative station.

Cable locked and will not release in cold weather

You finished charging but the CCS2 cable will not unlock from your car. In Nordic winters, ice can form around the connector locking mechanism, making it physically difficult to release.

Symptoms

• Pressing the connector release button does not unlock the cable
• The connector feels frozen in place
• Your car shows "Charging complete" but the cable is stuck
• The locking pin on the connector is visibly iced over

How to Fix It

1. 1

   Make sure the charging session has fully ended

   The cable stays locked while a session is active. Stop the session in the Mer app or on the charger screen, then try releasing the connector again. Wait 10 seconds after the session ends.

2. 2

   Try unlocking from your car

   Most EVs have a cable release option in the infotainment system or a button near the charge port. Use your car's unlock function rather than the connector button.

3. 3

   Warm the connector gently

   If ice is the problem, pour lukewarm water (not boiling) over the connector and charge port area. You can also cup your hands around the connector to warm it with body heat. Do not use force or tools to pry it free.

4. 4

   Run the car's cabin heater for a few minutes

   Turning on the car's climate system can gradually warm the charge port area from the inside. This works slowly but can free a mildly frozen connector after 5-10 minutes.

5. 5

   Call Mer support if the cable is truly stuck

   If nothing works after 15 minutes, call the support number on the charger. Mer can remotely release the cable lock on their end. Do not pull with excessive force as this can damage both the connector and your car's charge port.

App requires location services for remote start

The Mer app asks you to enable location services before you can start a charging session, even when you are standing right next to the charger and selected it manually from the map.

Symptoms

• App shows "Enable location services to start charging" popup
• Start button is grayed out until location permission is granted
• The app worked fine before but now demands location after an update
• You can browse the map but cannot start a session without GPS enabled

How to Fix It

1. 1

   Enable location services temporarily

   Go to your phone's settings, find the Mer app, and set location access to "While Using the App." You can change it back after your session.

2. 2

   Make sure GPS has a fix

   In underground parking garages or areas with poor GPS reception, the app may not be able to confirm your location. Step outside or move closer to an open area until the app detects your position.

3. 3

   Use RFID or contactless payment instead

   If you do not want to share your location, use your RFID card or a contactless bank card to start the session. These methods do not require the app at all.

4. 4

   Scan the QR code on the charger

   Some Mer chargers have a QR code that opens the start process in a browser, bypassing the app's location requirement.

Former Grønn Kontakt station not found in Mer app

Mer acquired Grønn Kontakt in Norway, but some older stations may not appear correctly in the Mer app, especially during the transition period.

Symptoms

• Station visible on the street but not on the Mer app map
• Searching by the old Grønn Kontakt name returns no results
• QR code on the charger links to a Grønn Kontakt page that no longer works
• RFID card from Grønn Kontakt account rejected

How to Fix It

1. 1

   Update the Mer app to the latest version

   Older versions of the app may not include recently migrated Grønn Kontakt stations. Update from the App Store or Google Play.

2. 2

   Search by the station's physical address

   Instead of searching by station name, try the street address or zoom into the location on the app map. The station may appear under a new Mer name.

3. 3

   Enter the charger ID manually

   Look for a station or connector ID printed on the charger hardware. Enter this ID in the Mer app's manual start option.

4. 4

   Use contactless payment to bypass the app

   If the station has a payment terminal, tap your bank card to start. This works independently of whether the app has the station listed.