Volkswagen Car Warning Lights What Do They Mean and How to Fix?

The status lights above will help you see what systems are doing behind the scenes.

So with these, there tends to be nothing to worry about on the whole, as they are more designed to give you peace of mind and to help you avoid confusion about what that system is currently set to or just actually doing currently, especially when switching between automatic and manual driving features, for example.

This light tends to be triggered by faults - or irregularities - in the engine system, like sensors, fluid levels, or even software errors.

Here, you may notice changes in how the car behaves – warning beeps, reduced power, strange lights, or even handling issues with the car overall.

Ignoring this light could lead to a large level of reduced safety for you and your passengers, along with more expensive repairs later on or even a sudden car failure while you are still driving as well.

Here, you want to read your owner’s manual and visit a local garage with proper diagnostic tools for a fix.

This warning light will tend to be triggered by faults or irregularities in your battery system.

Here, you may notice changes in how the car behaves, such as warning beeps, reduced power, or even handling issues.

If you ignore the battery warning light, your car could suddenly lose power, which might leave you stranded or even cause the engine to stop while driving.

Other parts, like the lights and radio, may fail, too, so sorting them out quickly will help you avoid costly repairs and keep your journey safe.

If you are capable of doing so, first, you should check if the battery connections are tight and clean and look for signs of corrosion.

If that is fine, check the alternator belt is not loose or broken, as you might also need a new battery or alternator.

But, if you are unsure at all, it is best to visit a mechanic who can sort it quickly and safely.

Ignoring the oil pressure warning can seriously damage your engine. Without proper oil pressure, engine parts can grind together, causing overheating and complete engine failure. Repair costs could be massive, and in some cases, the engine might even need replacing. It's best not to delay sorting it out.

This light is triggered when the engine’s oil pressure drops below a safe level. It could be due to low oil levels, a faulty oil pump, a clogged oil filter, or even a dodgy oil pressure sensor. Basically, it’s the car’s way of crying out for help.

Besides the warning light itself, you might notice strange engine noises like ticking or knocking. Sometimes, the engine runs hotter than usual or even smells a bit burnt. In the worst case, your car might stall or refuse to start altogether. Definitely not something to ignore.

First, pull over safely and switch the engine off. Check the oil level with the dipstick; top it up if it’s low. If oil levels are fine, it’s best to call a mechanic or get it towed to a garage. Continuing to drive could cause really nasty damage.

This warning can be triggered by low brake fluid levels, worn brake pads, a problem with the hydraulic system, or even a fault in the electronic sensors. Sometimes, it’s as simple as leaving the handbrake slightly engaged without realising it.

Typical signs include a spongy brake pedal, strange noises when braking, longer stopping distances, or even a noticeable fluid leak under your car. The brakes might also feel weaker or not respond as quickly as they should.

First, safely pull over and check if your handbrake is fully released. Next, look at your brake fluid level and top it up if it’s low (make sure to use the correct fluid). If the light stays on, you’ll want to visit a trusted mechanic promptly to have the brakes properly inspected and repaired.

This light pops on when your engine is getting too hot or, sometimes, when the engine coolant level is too low. It can also be triggered by a faulty thermostat, broken water pump, or a leak somewhere in the cooling system.

Besides the warning light, you might notice steam coming from under the bonnet, a very hot smell, strange noises, or the temperature gauge going higher than normal. The heater might even blow cold air instead of warm.

First, pull over safely and turn off the engine to let it cool. Never open the radiator cap while it's hot! Check the coolant level and top it up if it's low. If it’s leaking or the light stays on, call for a mechanic. You might need repairs like a new thermostat, radiator, or water pump.

The ABS light can turn on if there’s a fault in the anti-lock braking system. It could be anything from a worn-out sensor, low brake fluid, broken wires, or even issues with the ABS pump itself. Even a minor hiccup in the system can cause it to light up.

Along with the warning light, you might notice things like weird noises when braking, the brakes locking up too easily, or a strange pulsation when you step on the brake pedal. Sometimes, there’s no noticeable change at all, but it’s still important to have it inspected.

First, check your brake fluid level - top it up if it’s low. If that doesn’t help, inspect your wheel sensors for dirt or damage. Sometimes, a simple clean-up can clear the fault. If the light stays on, it’s best to pop by a mechanic for a proper diagnosis and repair.

Several things can trigger the airbag light: a faulty sensor, a problem with the seat belts, wiring issues, or even a drained backup battery for the airbags. Even small bumps without accidents can sometimes upset the system and cause the light to stay on.

When the airbag light is on, you might not notice anything else wrong while driving. However, in a crash, the airbags may fail to deploy, or they could deploy incorrectly, leading to much more serious injuries.

First, try restarting the car - sometimes, the light resets. Check the seat belts and make sure they click in properly. If that doesn’t work, visit a mechanic who can scan the car's system and fix any faulty sensors or wiring problems. It's usually a quick job.

It comes on when the tyre pressure is too low or too high. This could be due to a slow puncture, a change in temperature, or tyres just naturally losing air over time.

You might notice the car pulling slightly to one side, the steering feels odd, or the ride is bumpier than usual. Sometimes tyres just look a bit flatter, too.

First, check your tyres with a pressure gauge. Top up (or release) air as needed at a petrol station. Make sure you’re using the right pressure from the car’s manual or door sticker. After adjusting, reset the warning light using your car’s dashboard menu if it doesn’t go off automatically.

The light comes on when the system detects a fault with the power steering motor, fluid, or electrical connections.

Steering may feel stiff, jerky, or completely unassisted. You might hear odd noises when turning the wheel.

Check your power steering fluid if your car uses it. If it's low, top it up carefully. Otherwise, you may need a mechanic to check the motor or sensors. Don’t ignore it - steering issues are safety-critical.

This light pops on if the glow plugs (which help start the diesel engine) aren’t working properly or heating up enough.

You might notice hard starting, misfiring when cold, or a rough idle until the engine warms up.

Try switching the ignition on and waiting for the light to go out before starting. If it stays on or flashes, you’ll likely need a garage to replace one or more glow plugs.

The light comes on when the DPF gets clogged with soot, usually from lots of short trips where it doesn’t get hot enough to clean itself.

Loss of power, poor fuel economy, and eventually a rough or even stalled engine.

Take the car for a longer drive at around 40-60mph for 20 minutes to trigger regeneration. If that doesn’t work, a garage may need to clean or replace the DPF.

This light comes on when there’s an issue with the Electronic Stability Programme or Brake Assist System, often caused by sensor faults or wiring problems.

You might notice the car sliding more easily or the traction control not kicking in properly during sharp turns or wet driving.

Try switching the car off and back on first. If the light stays, it’s best to get a mechanic to scan the system and sort out any faulty sensors.

Lane assist lights up when the cameras or sensors can’t detect lane markings properly or if the system is switched off or faulty.

The car might not give nudges to steer you back into the lane, or the steering might feel lighter than normal.

Clean the windscreen where the cameras are located. If that doesn’t help, a sensor or camera calibration might be needed at a dealership.

Faulty radar sensors, dirty sensor lenses, or software glitches can cause the system to stop working properly.

The cruise control might not hold a set distance, or it could stop working altogether.

Clean the front radar sensor (usually in the grille) gently. If problems continue, a diagnostic check is needed to fix the radar or system settings.

Dirty sensors, blocked sensors or wiring faults usually cause the parking sensor light to come on.

Beeping may stop working, sensors might beep continuously, or the system might fail to detect objects properly.

Clean each sensor gently with a soft cloth. If it still misbehaves, a visit to a garage might be needed to test or replace faulty sensors.

This light appears when there’s a problem with the hill-start assist system, often linked to the brakes, clutch, or sensors.

The car may roll backwards slightly when starting on a hill, or the system won’t ‘hold’ as expected.

If the light is on, drive carefully without relying on a hill hold. Have a garage check the braking and sensor systems.

The light comes on if the start/stop system is switched off manually, the battery is low, or there’s a sensor issue.

The engine won’t switch off automatically when you stop at traffic lights or in traffic jams.

Check if you’ve turned off the system by mistake. If not, it could just be a low battery charge, which often sorts itself out after a good, long drive. If not, a battery test might be needed.

The system detects when a headlight, brake light, or another bulb isn’t working properly.

Other drivers might flash their lights at you, or you might notice one side looks darker when parked near walls or reflections.

Walk around the car and check all lights. Replace any faulty bulbs with the correct type - most are easy to fit yourself. If not, any garage can swap them quickly and cheaply.

The light comes on when the washer fluid reservoir gets too low.

Your washers might stop squirting properly, or you’ll get a warning on the dash asking to top up fluid.

Simply lift the bonnet, find the washer fluid cap (often blue), and top up with proper screen wash fluid mixed with water. Avoid just using plain tap water in winter to stop freezing.

This light comes on when one of the doors, the boot, or the bonnet isn’t properly closed.

You’ll hear beeping when driving off, or the car might refuse to lock properly when parked.

Open and firmly close all doors, the boot, and the bonnet. Check the rubber seals or latches if the warning stays on. Sometimes, dirt or worn seals need a bit of attention.

The EPC system detects issues with the throttle, sensors, or engine management controls.

The car may go into limp mode (reduced power), feel sluggish, or drive erratically.

Stop and restart the car first. If the light stays, get it checked quickly with a diagnostic scan - EPC faults can affect safe driving if ignored.

This light comes on when the AdBlue (diesel exhaust fluid) level drops too low.

Warning messages about mileage limits before the car refuses to start. You might also notice a slight change in performance if levels get very low.

Buy a bottle of AdBlue from a petrol station or car shop and carefully fill it up into the correct tank (usually near the fuel filler). Reset the warning if needed by following your car’s manual.

The car senses that one or both of the bulbs lighting the rear number plate have blown or gone dim.

The rear plate will look dark at night when checked, or you’ll spot the warning on the dashboard.

Replacement bulbs are cheap and quick to fit. Check your handbook for the right type and simply clip or twist the old one out and pop the new one in.

This warning pops up if there’s a problem with the battery, electric motor, or related control systems.

Loss of power, switching off of the electric drive, strange noises, or poor battery charging.

Pull over safely if you notice a loss of power. Restarting the car sometimes clears minor faults, but for anything else, a proper diagnostic check is needed quickly to avoid bigger issues.

The car doesn’t recognise the key’s chip properly, either because of damage, low key battery, or immobiliser faults.

The engine won’t crank or start, or you might see warning messages about key or security system faults.

Try using a spare key if you have one. Otherwise, replace the key battery or get help from a dealer to reprogram the key or fix the immobiliser system.

The sensor behind the windscreen might be dirty, damaged, or disconnected.

Wipers don’t start automatically in rain, or headlights don’t switch on when it gets dark.

Clean the windscreen area carefully where the sensor is. If the warning remains, a sensor replacement or recalibration may be needed at a garage.

• Top up washer fluid, coolant, and oil
• Check tyre pressures and inflate if needed
• Replace simple bulbs like headlights or indicators
• Close open doors, bonnet, or boot

• Brake system or ABS warnings
• Airbag or engine management lights
• Persistent coolant or oil pressure alerts
• Anything with smoke, smells, or odd noises
• Multiple warning lights appearing together

Rule of thumb: If you are unsure, or the car feels unsafe, get the expert help right away.

1. Did the light appear right after refuelling?
   • Yes – check the fuel cap is tight. Drive for a few miles to see if it clears.
   • No – move to step 2.
2. Is the car driving strangely (loss of power, odd sounds)?
   • Yes – reduce speed and drive to a garage.
   • No – book a diagnostic scan within a few days.
3. Is the light flashing?
   • Yes – stop driving. It could be a serious misfire.
   • No – drive cautiously and monitor the situation.

1. Check all tyre pressures using a gauge.
2. Inflate to the recommended PSI listed on the door frame sticker.
3. Reset the TPMS system using the dashboard menu.
4. If the light returns, inspect tyres for slow punctures.
5. Still on? Have a tyre specialist check the sensor system.

1. Wait until the engine cools completely.
2. Check the coolant level in the reservoir tank.
3. Top up with the correct mix of water and coolant if low.
4. Start the engine and watch if the light goes out after a few minutes.
5. If the light stays on or coolant leaks are visible, visit a garage.