Toyota bZ4X Owner's Manual: If You Have a Flat Tire

Your vehicle is not equipped with a spare tire, but rather with an emergency tire puncture repair kit.

A puncture caused by a nail or screw passing through the tire tread can be temporarily repaired using this kit. It contains a bottle of sealant that is designed for one-time use, allowing you to mend one tire without removing the foreign object. However, depending on the extent of the damage, the repair kit may not always be effective.

After applying the temporary repair, have the tire professionally repaired or replaced by your Toyota dealer.

WARNING

If You Have a Flat Tire

Do not continue driving on a flat tire. Even short distances can cause irreparable damage to both the tire and wheel, which could ultimately lead to an accident.

Before Repairing the Vehicle

• Stop the vehicle in a safe location on a firm, flat surface.
• Engage the parking brake.
• Shift the transmission into Park (P).
• Turn off the EV system.
• Activate the emergency flashers.
• Examine the extent of the tire damage.

The emergency tire puncture repair kit is intended only for punctures caused by nails or screws penetrating the tire tread.

• Do not remove the nail or screw from the tire before applying the repair kit; this could widen the hole and make a temporary fix impossible.
• To help prevent sealant leakage, if you know the puncture’s location, try to position the tire so that the damaged area is at the top.

For example, owners of the Toyota bZ4X can use these steps to address a flat tire safely until a permanent repair is made.

A flat tire that cannot be repaired with the emergency tire puncture repair kit

In the following cases, the tire cannot be repaired with the emergency tire puncture repair kit. Contact your Toyota dealer.

• When the tire is damaged due to driving without sufficient air pressure
• When there are any cracks or damage at any location on the tire, such as on the side wall, except the tread
• When the tire is visibly separated from the wheel
• When the cut or damage to the tread is 0.16 in. (4 mm) long or more
• When the wheel is damaged
• When two or more tires have been punctured
• When more than one sharp objects such as nails or screws have passed through the tread on a single tire

Location of the emergency tire puncture repair kit and tools

1. Towing eyelet
2. Emergency tire puncture repair kit

Emergency tire puncture repair kit components

Bottle

1. Sticker

Compressor

1. Air pressure gauge
2. Compressor switch
3. Power plug
4. Hose
5. Air release cap

Emergency Tire Puncture Repair Kit

• The sealant in the kit is designed for a one-time, temporary repair of a single tire. Once the sealant (or any part of the kit) has been used, contact your Toyota dealer for a replacement.
• The included compressor is built for repeated use.
• The sealant operates effectively within a temperature range of -40ºF (-40ºC) to 140ºF (60ºC).
• This kit is specifically engineered for the tire size and type originally installed on your vehicle. Do not use it on tires that differ from the original specifications or for any other purposes.
• Be aware that the sealant can stain clothing if it comes into contact; handle it carefully.
• If the sealant spills onto a wheel or the vehicle’s body, wipe it off immediately with a wet cloth to prevent a permanent stain.
• During operation, the repair kit may produce a loud noise; this is normal and does not indicate a malfunction.
• Do not use the kit as a substitute for checking or adjusting tire pressure.

Important Notes on Checking the Repair Kit

• Regularly verify the sealant’s expiry date, which is clearly marked on the bottle.
• Do not use sealant that has passed its expiration date, as this may compromise the repair quality.
• Since the sealant has a limited shelf life, be sure to replace it before the expiry date-if needed, consult your Toyota dealer for a new kit.

WARNING

If you have a flat tire

Do not drive on a flat tire. Even a short distance can damage both the tire and the wheel beyond repair, potentially creating a circumferential groove on the sidewall. In such cases, using the repair kit might lead to a tire explosion.

Cautions While Driving

• Always store the repair kit securely in the luggage compartment. In the event of an accident or sudden braking, an unsecured kit could cause injury.
• The repair kit is intended for use solely on your vehicle. Do not attempt to use it on another vehicle, as this could lead to an accident with potentially fatal or serious consequences.
• Use the kit only on tires of the original size. Using it on tires with different dimensions or for any unintended purpose could result in an incomplete repair and create a hazardous situation.

Precautions for Using the Sealant

• Ingesting the sealant is hazardous. If you accidentally ingest it, drink plenty of water immediately and consult a doctor.
• If the sealant gets in your eyes or on your skin, rinse thoroughly with water. If irritation or discomfort persists, seek medical advice.

For example, owners of the Toyota bZ4X can rely on this kit for temporary repairs in an emergency, provided all instructions and safety precautions are followed and any used components are replaced by an authorized dealer.

Taking out the emergency tire puncture repair kit

1. Open the deck board.

2. Remove the cover.

3. Take out the emergency tire puncture repair kit.

1. Compressor
2. Bottle

Emergency repair procedure

1. Take out the repair kit from the plastic bag.

Attach the sticker enclosed with the bottle on the specified locations.

2. Remove the hose and take out the power plug from the compressor.

3. Connect the bottle to the compressor.

Insert and connect the bottle straight into the compressor as shown in the illustration, and check that the claws of the bottle are concealed in the holes.

4. Connect the hose to the bottle.

As shown in the illustration, make sure the hose is connected securely to the bottle.

5. Remove the valve cap from the valve of the punctured tire.

6. Extend the hose. Remove the air release cap from the hose.

You will use the air release cap again. Therefore keep it in a safe place.

7. Connect the hose to the valve.

Screw the end of the hose clockwise as far as possible.

8. Make sure that the compressor switch is off.

9. Connect the power plug to the power outlet socket.
10. Attach the sticker provided with the tire puncture repair kit to a position easily seen from the driver's seat.

11. Check the specified tire inflation pressure.

Tire inflation pressure is specified on the label as shown.

12. Start the EV system.
13. To inject the sealant and inflate the tire, turn the compressor switch on.

14. Inflate the tire until the recommended pressure is reached.

1. The sealant will be injected and the pressure will spike to between 44 psi (300 kPa, 3.0 kgf/cm2 or bar) and 58 psi (400 kPa, 4.0 kgf/cm2 or bar), then gradually decrease.
2. The air pressure gauge will display the actual tire inflation pressure about 1 to 5 minutes after the switch is turned on.

• Turn the compressor switch off and then check the tire inflation pressure. Being careful not to over inflate, check and repeat the inflation procedure until the specified tire inflation pressure is reached.
• The tire can be inflated for about 5 to 20 minutes (depending on the outside temperature). If the tire inflation pressure is still lower than the specified point after inflation for 25 minutes, the tire is too damaged to be repaired. Turn the compressor switch off and contact your Toyota dealer.
• If the tire inflation pressure exceeds the specified air pressure, let out some air to adjust the tire inflation pressure.

15. With the compressor switch off, pull out the power plug from the power outlet socket and then disconnect the hose from the valve on the tire.

Some sealant may leak when the hose is removed.

16. Install the valve cap onto the valve of the emergency repaired tire.
17. Attach the air release cap to the end of the hose.

If the air release cap is not attached, the sealant may leak and the vehicle may get dirty.

18. Temporarily store the bottle in the luggage compartment while it is connected to the compressor.
19. To spread the liquid sealant evenly within the tire, immediately drive safely for about 3 miles (5 km) below 50 mph (80 km/h).
20. After driving, stop your vehicle in a safe place on a hard, flat surface and reconnect the repair kit.

Remove the air release cap from the hose before reconnecting the hose.

21. Turn the compressor switch on and wait for several seconds, then turn it off. Check the tire inflation pressure.

1. If the tire inflation pressure is under 19 psi (130 kPa, 1.3 kgf/cm2 or bar): The puncture cannot be repaired. Contact your Toyota dealer.
2. If the tire inflation pressure is 19 psi (130 kPa, 1.3 kgf/cm2 or bar) or higher, but less than the specified air pressure
3. If the tire inflation pressure is the specified air pressure

22. Turn the compressor switch on to inflate the tire until the specified air pressure is reached. Drive for about 3 miles (5 km)
23. Attach the air release cap to the end of the hose.

If the air release cap is not attached, the sealant may leak and the vehicle may get dirty.

24. Store the bottle in the luggage compartment while it is connected to the compressor.
25. Taking precautions to avoid sudden braking, sudden acceleration and sharp turns, drive carefully at under 50 mph (80 km/h) to the nearest Toyota dealer that is less than 62 miles (100 km) away for tire repair or replacement.

For repair and replacement of a tire or disposal of the tire puncture repair kit, contact your Toyota dealer.

When having the tire repaired or replaced, make sure to tell the Toyota dealer that the sealant is injected.

If the tire is inflated to more than the specified air pressure

1. Disconnect the hose from the valve.
2. Install the air release cap to the end of the hose and push the protrusion on the air release cap into the valve to let some air out.

3. Disconnect the hose from the valve, remove the air release cap from the hose and then reconnect the hose.
4. Turn the compressor switch on and wait for several seconds, then turn it off. Check that the air pressure indicator shows the specified air pressure is reached.

If the air pressure is under the designated pressure, turn the compressor switch on again and repeat the inflation procedure until the specified air pressure is reached.

After a Tire is Repaired with the Emergency Tire Puncture Repair Kit

• Immediately replace the tire pressure warning valve and its transmitter, as the repair process may compromise their functionality.
• Even when the tire inflation pressure is adjusted to the correct level, the tire pressure warning light might still flash or remain illuminated.

WARNING

When Fixing a Flat Tire

• Park your vehicle in a secure, flat area to ensure a safe working environment.
• Avoid touching the wheels or areas surrounding the brakes immediately after driving because they can be extremely hot and may cause burns.
• Ensure that the valve and hose are connected securely while the tire remains mounted on the vehicle.

If the hose is not firmly attached to the valve, air leakage might occur, causing the sealant to be expelled unexpectedly.

• Should the hose detach during inflation, the sudden release of air pressure can force it to jerk violently.
• Once tire inflation is complete, disconnecting the hose or releasing a small amount of air might cause the sealant to splatter.
• It is crucial to follow the recommended operating procedure precisely; failure to do so might result in uncontrolled discharge of the sealant.

WARNING

Maintain a Safe Distance During Repair

Stay back from the tire while the repair is in progress, as there is a risk the tire could burst during the operation. If you notice any cracks or deformations, immediately shut off the compressor and cease repairs.

• The repair kit’s compressor should not be run continuously for more than 40 minutes to prevent overheating.
• Some components, such as the metal connector between the sealant bottle and compressor, will become extremely hot during use. Handle these parts with extreme caution.
• Ensure that any vehicle speed warning sticker is adhered only to its designated location. Misplacement-especially near sensitive areas like an SRS airbag module-can interfere with safety systems.

Driving to Evenly Distribute the Sealant

After the repair, drive at a low speed to help distribute the liquid sealant uniformly across the tire. Exercise extra care when turning or cornering to maintain control and avoid sudden maneuvers.

• If the vehicle does not maintain a straight trajectory, or you detect unusual pulling through the steering wheel, stop immediately and assess the tire.

• Inspect the tire for signs of separation or detachment from the wheel.
• Check the tire inflation pressure. If the pressure has dropped to 19 psi (130 kPa, approximately 1.3 bar) or below, the tire might have sustained severe damage.

NOTICE

When Performing an Emergency Repair

• Do not remove the nail or screw that caused the puncture. Keeping the object in place is essential for the effectiveness of the temporary repair.
• The repair kit is not waterproof. Avoid using the kit in rainy conditions or any situation where it might become wet.
• Do not place the repair kit directly on dusty surfaces, such as sand at the roadside, as dust accumulation can impair its functionality.
• Always keep the sealant bottle in an upright (vertical) position during operation. The kit will not function properly if the bottle is laid horizontally.

Precautions for the Emergency Tire Puncture Repair Kit

• Use only the recommended 12 V DC power supply that is intended for vehicle use. Connecting the kit to any other power source may cause malfunction.

NOTICE

• Always store the repair kit in a clean, protected area to prevent exposure to dirt or water.
• Place the repair kit in the vehicle’s luggage compartment, out of reach of children.
• Do not disassemble or modify any components of the repair kit. Impacting or tampering with parts such as the air pressure indicator might lead to a malfunction.

To Avoid Damage to the Tire Pressure Warning Valve and Transmitter

When a tire is repaired with liquid sealants, its associated tire pressure warning valve and transmitter may not operate as expected. If a liquid sealant is used, have your vehicle inspected by a qualified service shop or your dealer as soon as possible and replace these components during the tire repair or replacement process.

For example, owners of the Toyota bZ4X should follow these comprehensive guidelines to ensure that temporary puncture repairs do not compromise safety or damage the integral systems designed to monitor tire pressure.