Why Don't EVs Come With Spare Tires? How to Prepare Your Electric Vehicle for a Tire Emergency Without a Spare

Why Don’t EVs Come With Spare Tires? How to Prepare Your Electric Vehicle for a Tire Emergency Without a Spare

If you’re looking to buy a new electric car, you may not yet realize that most of them don’t come with a spare tire. While this is not unique to EVs, and it’s rare to find a car with a spare tire these days, it is something that potential EV buyers should be aware of.

For decades, the humble spare was a comforting presence in the trunk, a safety net against the dreaded flat. Its disappearance from many modern vehicles, especially EVs, might be confusing and even a little concerning, particularly when considering a tire issue on a remote Canadian highway or during a harsh winter. This is not an oversight but rather a combination of design, technical, and efficiency issues unique to electric vehicles. 

Understanding why your new electric vehicle‘s spare tires are missing and, more importantly, knowing how to prepare for a tire emergency without one is crucial for peace of mind and continued enjoyment of your EV. 

More from Carnex Blog:

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Why EVs Often Lack Spare Tires

While some internal combustion engine (ICE) vehicles have started to eliminate the spare to reduce weight and space, the reasons tend to be more compelling and multifaceted in the world of electric mobility. Firstly, weight reduction is critical in EV design. The heavier a vehicle is, the more energy it requires to move. Electric vehicles are already heavy due to the huge battery packs that power them. An EV spare wheel and tire, along with the requisite jack and equipment, can add 15-25 kg or more to the vehicle’s overall weight. 

This extra weight directly impacts the electric vehicle‘s range—a critical selling point and a key concern for EV owners, especially in a vast country like Canada where distances between charging stations can be significant. Manufacturers strive to eke out every possible kilometer of range, and shedding the spare tire is a relatively straightforward way to contribute to this goal. Less weight means better energy efficiency, translating to longer driving distances on a single charge and reduced “range anxiety” for the driver. This focus on efficiency also has a secondary benefit: lower energy consumption means a smaller carbon footprint over the vehicle’s lifetime, which is consistent with the environmental goals of EV adoption.

Second, space optimization is an important factor. The architecture of electric vehicles differs significantly from that of internal combustion engines (ICE). The large battery pack typically occupies a significant portion of the vehicle’s underfloor, influencing the overall design and available space. This placement is optimal for a low centre of gravity and improved handling, but it can encroach on areas traditionally used for spare tire wells. 

Furthermore, many EVs boast a “frunk” (front trunk) where an engine would normally reside. While this adds valuable cargo space, it’s often not designed or deep enough to accommodate a bulky spare tire. Manufacturers prioritize passenger cabin space and luggage capacity, and the volume occupied by a spare tire could be repurposed for these more frequently utilized areas. In some EV designs, particularly smaller urban-centric models, finding a suitable, accessible, and safe location for a spare tire without compromising other design goals can be an engineering challenge.

Finally, modern vehicles are quite smart, and if they don’t have run-flat tires, they have Tire Pressure Monitoring Systems (TPMS), which alert drivers of tire pressure decrease earlier. This allows for proactive intervention, potentially preventing a minor leak from escalating into a full-blown flat tire that leaves a driver stranded. The idea is that with TPMS, drivers are more likely to address a slow leak before it becomes a catastrophic failure, reducing the immediate necessity of an EV spare tire.

For Canadian drivers, long distances between service centres, sometimes challenging road conditions outside major urban areas, and extreme cold (which can affect sealant performance and battery range) make the absence of an EV spare wheel more of a concern. Therefore, while understanding why spares are omitted is helpful, focusing on preparedness strategies becomes even more critical.

Why Don’t EVs Come With Spare Tires? How to Prepare Your Electric Vehicle for a Tire Emergency Without a Spare

Tire Maintenance, Roadside Assistance, and Your EV Emergency Kit for Canadian Roads

While understanding the reasons for the lack of EV spare tires and being aware of alternatives such as electric car fix-a-flat kits or aftermarket EV spare wheels is critical, the first line of protection against tire issues is always proactive maintenance and thorough preparation.  

For Canadian EV drivers, who must deal with long distances, varying road conditions, and often bad weather, a diligent approach to tire care and emergency planning is essential. This section focuses on preventative measures, using effective roadside help, and assembling a well-rounded emergency kit to ensure you’re as prepared as possible for any tire-related incident, or any other roadside issue.

Tire Maintenance for EVs

EVs, with their high torque and frequently heavier weight, may put unique demands on their tires, perhaps resulting in different wear patterns than ICE vehicles; therefore, following regular maintenance is key.

Tire Pressure Monitoring System (TPMS) Awareness: Your EV’s TPMS is your early warning system. Pay immediate attention to any low-pressure alerts. Don’t just reset it; find out why it’s low. 

Regular Manual Pressure Checks: Especially in Canada, fluctuating temperatures can significantly alter tire pressure. Cold weather causes pressure to drop (roughly 1 PSI for every 5.5°C drop in temperature). Check your tire pressures at least monthly with a reliable gauge when the tires are cold (driven less than 2 km). Use the pressures recommended on your vehicle’s doorjamb sticker, not the maximum pressure on the tire sidewall. Correct pressure is vital for safety, handling, tire longevity, and maximizing EV range. Underinflated tires increase rolling resistance, consuming more energy and reducing range.

Tire Rotation: EVs, particularly powerful RWD or AWD models, can exhibit faster or uneven tire wear due to instant torque delivery. Regular tire rotation (as per your vehicle manufacturer’s schedule, typically every 8,000-10,000 km) is critical to equalize wear and extend tire life. Some EVs have staggered tire sizes (different front and rear), which limits rotation options to side-to-side (if tires are not directional) or no rotation at all. Understand your specific needs.

Wheel Alignment: Potholes and rough Canadian roads can easily knock your wheels out of alignment. Misalignment causes rapid and uneven tire wear and can negatively impact handling and efficiency. Have your alignment checked periodically, especially if you notice uneven wear, your vehicle pulling to one side, or after hitting a significant pothole.

Visual Inspections: Regularly inspect your tires for signs of damage, such as cuts, bulges, embedded objects (nails, screws), or cracks in the sidewalls. Also, check tread depth. In most Canadian provinces, the minimum legal tread depth is 1.6 mm (2/32 inch), but for safe driving, especially in wet or snowy conditions, replacement is recommended when tread depth reaches 3.2 mm (4/32 inch) for all-season tires and 4.8mm (6/32 inch) for winter tires. Use a tread depth gauge or the wear indicator bars built into the tire grooves.

Choosing the Right Tires: When it’s time for replacement, select tires specifically designed for or well-suited to EVs. These often feature low rolling resistance compounds for range efficiency, robust construction for the vehicle’s weight, and noise-dampening technology for a quieter ride. For Canadians, all-weather or dedicated winter tires are crucial for safe winter driving.

Roadside Assistance in Canada

Even with the best preparation, some tire failures (like severe blowouts or sidewall gashes) are beyond self-repair with an electric car fix-a-flat kit. This is where robust roadside assistance becomes invaluable.

Manufacturer Programs: Most new EVs come with a roadside assistance package for a certain period. Understand its coverage: towing distance limits, whether it specifies EV-certified towing a flatbedd is essential for most EVs to prevent drivetrain damage), and where they will tow your vehicle (dealership, any tire shop?).

Canadian Automobile Association (CAA): CAA is a highly regarded option across Canada, offering various membership levels. They have specific provisions and training for handling EVs, including flatbed towing. Their coverage often extends further and can be more flexible than manufacturer programs, especially after the warranty period.

Credit Card Benefits and Insurance: Some premium credit cards or auto insurance policies include roadside assistance benefits. Check the terms carefully to see if they meet your needs and are EV-compatible.

EV Emergency Kit for Canadian Drivers

Beyond just dealing with a flat tire, being prepared for any roadside emergency is smart, particularly given Canada’s diverse and sometimes harsh environment. Your kit should supplement whatever EV spare tire or electric car fix-a-flat solution you have.

Tire-Related Essentials (if not already part of your chosen solution):

• Reliable tire pressure gauge.
• Heavy-duty work gloves.
• Knee pad or mat.
• Flashlight or headlamp with extra batteries (essential for night-time issues).
• Reflective warning triangle and safety vest.
• If you have an aftermarket spare: compatible jack, lug wrench, and wheel chocks.
• If relying on a sealant kit: ensure it’s present, unexpired, and you know how to use it.

General Roadside Emergency Items:

• First-aid kit.
• Basic toolkit (screwdrivers, pliers, adjustable wrench).
• Jumper cables (for the 12V battery, not the main traction battery! EVs still have a 12V battery for accessories).
• Duct tape and cable ties (surprisingly useful for temporary fixes).
• Multi-tool.
• Emergency blankets, especially crucial for Canadian winters.
• High-visibility rain poncho.
• Non-perishable snacks and water (especially for long trips or remote areas).
• Portable phone charger/power bank.
• Paper maps (in case of no cell service or phone battery failure).
• Small shovel and traction aids (like cat litter or foldable traction mats) for winter.
• Windshield washer fluid appropriate for the season.
• Emergency contact list (written down).

Winter Specifics for Canadian EV Owners

Winter adds another layer of complexity. Cold temperatures reduce EV range, make materials more brittle, and can make roadside tasks far more challenging and dangerous.

• Ensure your electric car fix-a-flat sealant is rated for low temperatures.
• Keep your EV’s traction battery sufficiently charged, especially before venturing into extreme cold or remote areas, as using cabin heat significantly impacts range.
• Pack extra warm clothing (hats, gloves, boots, winter coat) in your emergency kit.
• Be aware that roadside assistance response times can be longer in severe weather.

By combining paying attention to tire maintenance with a reliable roadside assistance plan and a well-stocked emergency kit, Canadian EV users may greatly reduce potential risks associated with the lack of a traditional spare tire. This proactive approach not only prepares you for a potential EV tire solution scenario but also enhances overall safety and confidence when navigating Canada’s beautiful but sometimes challenging roads in your electric vehicle. By understanding your options and by committing to proactive care and planning, you can confidently embrace the future of driving, knowing you’re well-prepared for anything the Canadian roads may bring.

More from Carnex Blog:

Electric Vehicle Storage: How To Prep Your EV For Long-Term Parking

First-Time Electric Car Driver? Here’s What You Need To Know Before Hitting the Road

Winter Driving with Electric Vehicles: How Much Range These Popular EVs Lose In The Cold

As always, Carnex can provide you with detailed information about buying and selling used electric vehicles in Ontario.

Carnex is the top online EV expert in Canada for buying and selling used electric vehicles in Ontario.

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