I’ll be honest. The first time lane centring grabbed the wheel of a car I was driving, I nearly jumped out of my skin. We were on the freeway, I was doing nothing wrong, sitting comfortably in my lane, and suddenly the steering wheel just… moved. On its own. With confidence. As if it knew better.
It did not know better. It had spotted a lane marking, made a calculation, and decided to act on it without asking me first. Welcome to modern motoring.
Lane centring is now standard or near-standard on a huge range of new cars, from budget hatchbacks to top-spec utes. It’s one of those features that sounds sensible on paper, divides opinion the moment you actually use it, and has sparked enough driver frustration in Australia that car manufacturers have quietly gone back and recalibrated their systems after complaints. It’s worth understanding what it actually does, how it differs from similar sounding technology, and whether it’s genuinely useful or just another thing you’ll switch off every time you start the engine.
What Lane Centring Actually Is
There’s a bit of a naming mess in this space, so it’s worth sorting out first.
Lane centring is the most active version of lane assistance technology. It uses a forward-facing camera, usually mounted behind the rear-view mirror, to continuously read lane markings and apply small, constant steering inputs to keep the car positioned in the middle of the lane. It is not waiting for you to drift. It is not warning you that you’re about to cross a line. It is actively steering the car, all the time, as a background process running underneath your own driving.
That is different from two related but less involved systems. Lane departure warning simply alerts you, with a beep or a vibration through the seat or wheel, when you drift toward a line without indicating. It doesn’t touch the steering. Lane keeping assist sits in the middle of the two, stepping in to nudge the car back when it detects you’re actually crossing a marking. Lane centring doesn’t wait for any of that. It keeps the vehicle centred proactively, making constant micro-adjustments rather than reactive ones.
The most sophisticated versions work in tandem with adaptive cruise control to give the car what amounts to semi-autonomous highway capability. Hands-on-the-wheel, but the car is doing a meaningful share of the work.
How It Works in Practice
The camera reads the painted lines on either side of the car and uses that information to calculate where the centre of the lane is. The system then feeds steering inputs into the electric power steering to hold the car on that line.
On a well-marked motorway in good conditions, this works remarkably well. The wheel makes tiny adjustments you barely notice, the car holds its position, and on a long drive it does genuinely reduce the mental load. I’ve driven several hundred kilometres on the Hume with a competent lane centring system running and arrived less fatigued than I would have otherwise. That part is real.
The problems come everywhere else.
Roadworks with temporary markings confuse it. Faded rural roads confuse it. Tight bends can make it feel like the car is fighting you. And if you position yourself deliberately to one side of the lane, to give more room to a cyclist or a wide truck, the system will gently but insistently try to drag you back to centre. On winding roads, the system may issue corrections that feel unnecessary and occasionally unsettling. It can also behave oddly when overtaking parked cars, attempting a steering correction at exactly the wrong moment.
Some implementations are smooth and easy to live with. Others are sharp and almost aggressive, which gets tiring quickly. That variation in quality between manufacturers and even between models from the same brand is significant, and it’s a major reason why driver opinion on the technology is so split.
Why So Many Drivers Switch It Off
Here’s a number that should tell you everything about where things currently stand. One in five Australian drivers with ADAS-equipped cars have switched at least one of those systems off. A separate survey found over 40% of motoristsfrequently disable lane keeping assist specifically.
I understand the impulse completely. There is something deeply irritating about a system that second-guesses you when you are doing nothing wrong. When you’re an experienced driver sitting exactly where you want to be in your lane and the steering wheel starts pulling, the instinct is not gratitude. It’s annoyance.
The frustration has been loud enough that several manufacturers have gone back and recalibrated their ADAS settings in Australian models after customer complaints. Mitsubishi, for instance, scaled back its driver monitoring tech after widespread feedback that it was overbearing. The current-generation Isuzu D-MAX and Mitsubishi Triton have both been called out by Australian reviewers specifically for intrusive lane assist behaviour.
The other frustration is that most systems reset themselves every time you restart the car. You switch it off, drive somewhere, park, get back in, and the system is back on by default. Manufacturers design it this way to satisfy safety regulations and maintain their ANCAP star ratings, which factor in whether these systems are fitted and active. So you’re in a minor arms race with your own car every time you start it.
