5 Things Kiwis Forget to Check on Their Cars in Winter

When winter rolls in across Aotearoa, the colder, wetter conditions can be tough—not just for us, but for our cars too. At Tyre Shop Online, we know how important it is to keep your vehicle in good condition when the temperatures drop, so we’ve put together a smart and practical guide to help you stay safe and prepared.

This blog isn’t just another list—it’s a reminder of the little things that often get missed, and the key steps to making sure your car is ready for winter. From your tyres to your battery, here’s our take on the preparing your car for winter checklist.

1. Don’t Skip Your Tyres — They’re Your First Line of Defence

We’ll start with what we know best: tyres. They’re the only point of contact between your car and the road, so when conditions get slippery, they need to be in top shape.

Tread depth matters:

In wet or icy weather, tread depth is what keeps your car gripping the road. If you haven’t checked it in a while, now’s a good time. If it’s worn close to the minimum legal limit 1.5mm in NZ, it’s time to replace. Read our blog about the basics of tyre safety to find out more about how to check your tread depth.

Air pressure fluctuates in cold weather:

A drop in temperature can lower your tyre pressure, so keep an eye on it and top up if needed. Low pressure affects handling and fuel economy.

Winter tyres or all-season?

While NZ doesn’t usually need snow tyres outside of alpine areas, consider whether your tyres are suited for colder conditions if you’re heading into regions like Central Otago or the Central Plateau. Read our blog about winter tyres and all-season tyres to learn about selecting the right tyres for your vehicle.

Tip: If you’re unsure, flick us a message—we’re happy to help you pick the right tyres for your winter driving.

2. Fluids Count — Especially When It’s Cold

When preparing your vehicle for winter, your car’s fluids should never be overlooked.

Engine coolant (antifreeze):

It keeps your engine from freezing and overheating. Check the levels and make sure it’s topped up with the right mix.

Wiper fluid:

Ordinary water won’t cut it in winter. You’ll need proper washer fluid that can handle cold weather especially in the South Island—bonus points if it has de-icer properties.

Oil check:

While most modern oils are multi-grade, it’s a good idea to check your last oil change and ensure you’re using the correct viscosity for winter.

Tip: If your windscreen keeps smearing, your wiper fluid or wiper blades might need a refresh.

3. Batteries Hate the Cold

A cold snap can kill an already weak battery. In fact, battery issues are one of the top reasons for breakdowns during winter. If your engine is slow to turn over, or your lights are dim, it might be time to check your battery or replace it.

Batteries typically last 3–5 years. If yours is pushing that limit, it’s worth having it tested before it gives up on a frosty morning.

Tip: Carry jumper leads or a portable jump starter, especially if you’re driving in rural or remote areas.

4. Lights and Wipers: Small Fixes That Make a Big Difference

Shorter days and wetter roads mean your visibility is more important than ever. Brake lights, headlights, and indicators should all be working properly and clearly visible. Replace any dim bulbs now—it’s a quick fix that improves your safety dramatically.

Wiper blades: If they’re streaking or squeaking, swap them out. Worn blades are nearly useless when you hit a downpour.

Tip: A clean windscreen, inside and out, reduces glare and fogging. Keep a microfibre cloth in the glovebox!

5. Don’t Forget a Winter Survival Kit

Even if you’re just doing the school run or the daily commute, it’s smart to keep a few emergency essentials on board during the winter months.

Here’s a basic kit every Kiwi car should have:

• Torch (with spare batteries)
• Phone charger or power bank
• Blanket or warm jacket
• Water and non-perishable snacks
• First aid kit
• De-icer or scraper
• Jumper leads
• High-vis vest or roadside triangle

Tip: If you’re heading out on a long trip, let someone know your route—especially in remote areas.

Be Winter-Ready with Tyre Shop Online

Winter driving in New Zealand brings its own set of challenges, but with a little prep, you’ll be ready for whatever the road throws at you. Whether it’s topping up wiper fluid, checking your tread depth, or keeping your battery in good condition, staying on top of the small things can make a big difference.

If you’re unsure about your tyres or just want a second opinion, we’re here to help. Tyre Shop Online offers great deals on quality tyres, fast NZ-wide delivery, and access to trusted local fitters.