Uphill on slippery roads – avoid getting stuck

Getting up a hill on slippery roads is more about planning than power. When snow and ice reduce traction, it is steady speed and the right gear that decide whether you make it up or end up sitting still and spinning. In this article you get the technique for using momentum, avoiding wheelspin, and what to do if you lose grip halfway up.

Contents

• Why you get stuck
• Build speed and use momentum
• The right gear and throttle
• If the wheels start to spin
• If you get stuck
• Preparing before winter

Why you get stuck

When a driven wheel turns faster than the car moves, you have wheelspin. On slippery roads this happens with very little throttle, because the available grip is low. Spinning heats up the snow under the tyre, melts it into a thin film of water and polishes the surface into ice – so grip gets worse the more you accelerate. That is why the most common mistake on a slippery hill is giving too much throttle too late.

Steepness makes it worse. Going uphill, weight shifts rearward, and front-wheel-drive cars then lose load over the driven front wheels. The steeper the hill and the more slippery the surface, the less force the wheels can handle before they let go.

Build speed and use momentum

The most important rule: build speed before the hill, not on it. The kinetic energy you carry into the climb helps you upward without needing to add throttle where grip is at its worst.

1. Spot the hill in good time and make a plan.
2. Gain steady, controlled speed on the flat before it – not reckless, but enough to carry you well up.
3. Keep distance to the car ahead so you do not have to brake or stop mid-climb.
4. Ease off gradually at the top, which is often the most slippery part because many have spun there before you.

If you stop in the middle of a slippery hill, you almost always have to start again from zero grip – and that is where most people get stuck. Read more in the article on hill starts and engine braking .

The right gear and throttle

Choose a high enough gear before entering the hill. A higher gear delivers lower torque to the wheels and therefore less tendency to spin. In a manual car, 2nd or 3rd gear is often right on a steady uphill – 1st gear gives too much force and easy spin. Avoid changing gear mid-hill, because the brief interruption in power can cost you your speed.

The throttle should be steady and smooth. Think of laying the throttle on gently rather than stamping on it. If you lose a little speed, add a little more – without crossing the point where the wheels start to slip.

With an automatic gearbox the same principles apply; the box selects the ratio for you, but you control speed with the throttle. See dedicated tips in automatic gearbox on steep hills . Which wheels drive also matters a lot – read about four-wheel drive versus front-wheel drive .

If the wheels start to spin

When you feel the wheels slipping and speed dropping, the first instinct is often to give more throttle. That makes it worse. Do this instead:

• Ease off the throttle until the wheels grip again.
• Keep the steering calm and straight – abrupt steering moves grip away from forward drive.
• Then gently add throttle again, more carefully than before.
• If the car has traction control (TC/ASR), let the system work and avoid overriding it with lots of throttle.

On very slippery surfaces, drifting slightly between the wheel tracks can give better grip than driving in the polished ruts. More on general technique is in practical tips for driving on slippery roads.

If you get stuck

If you stop completely, do not floor the throttle – the wheels just dig in and polish the ice. Try instead:

1. Roll back a little to a point with better grip and use it to build new speed.
2. Fit snow chains if you have them, or spread grit, gravel or a rubber mat in front of the driven wheels.
3. Move off so gently that the wheels just bite; roll the car up calmly rather than snatching at it.

When you set off again on the hill afterwards, the technique is the same as for a normal start on a steep hill , just with extra careful clutch and throttle.

Preparing before winter

Good traction starts with the tyres. Make sure you have correct, hard-wearing winter tyres in good time – see when you should switch to winter tyres . On ice and polished snow it is grip, not power, that sets the limit, and this is especially noticeable when starting and driving on ice .

Want to practise the theory around winter conditions, driving technique and risk? Take a free theory test and keep training in the Eteo app so you are well prepared for the theory test.