Car won't start in winter: causes and solutions
Cold weather is tough on cars. A battery that worked fine in summer may not have enough power on a -5°C winter morning. Here's why — and what you can do.
Why cars struggle to start in cold weather
Cold reduces battery capacity by up to 40%, thickens engine oil (increasing resistance) and can cause diesel to gel at very low temperatures.
Practical winter starting tips
Have your battery tested before winter. Use all-season or winter-grade engine oil. Park in a garage or covered area where possible. Avoid very short trips.
👉 Need help? Submit your request and get connected to an available roadside assistance provider in your area.
Frequently asked questions
My car won't start after a cold night. What do I do?
Try jump-starting first. If that fails, request help via FastAssist24 — you'll be connected to an available provider in your area.
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