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Dashboard Warning Lights

When warning lights appear on your dashboard, usually it is the first sign that something is wrong with your vehicle. If one comes on while you’re driving, stop somewhere safe as soon as possible. Some lights may appear to be more urgent than others.

Toomey Tip:

If there is an error code/message displayed, we would advise owners to note down the error code/ message and mention the code/message to the service advisor. This will enable us to diagnose the fault immediately and work towards a solution.

We have collated a couple of warning lights - most frequently asked by our customers:

Low Tyre Pressure

What is the warning for?

To inform the driver that one or more of the tyres is at an incorrect pressure.

What pressure should it be?

The correct tyre pressures are different for each model, and can be found in your Owner’s Manual.

Alternatively, the tyre pressures can be found at

I’m not sure how to check/adjust the pressures myself. How to it do it?

Always feel free to book an appointment for your tyres to be checked and have the pressures adjusted completely Free of Charge.

Does the light need to be manually reset?

No, after the tyre pressures have been adjusted to the manufacturer’s specification, a short drive should reset the light. However on some occasions a trip to the dealership is needed to reset the light.

​Battery Charge 

What is the warning for?

This warning light can indicate a number of things, all relating to the car’s battery and charging system.

What could be the cause?

The cause of the warning light may be as simple as a faulty battery that’ll need replacing. But it could also be due to a problem with the car’s wiring or, more seriously, a fault with its alternator or drive belt. We will be able to check your car’s battery and charging system to identify what’s at fault.

How does this effect my vehicle?

This is a particular problem at night, because a faulty battery can lead to headlights failing. However, without the battery or charging system providing electricity, you may find power steering, brakes or the engine itself impacted.

Check Engine ​​

What is the warning for?

This warning light is used to inform the driver on the possibility of an engine fault.

What should I do whilst on the road?

  • Stopping your vehicle if it’s safe to do so.
  • Switching off your engine and waiting for two minutes.
  • Restarting your engine.
  • If this warning light is flashing, you should stop when its safe to do so.

It’s really important to get your car checked at the service department, even if there are no obvious signs of a fault – noises, bangs, vibrations or smoke are all giveaways. As with all faults, it’s important to get the problem diagnosed as soon as possible to prevent further damage.

Book your vehicle in for a service and we will complete a FREE vehicle health check.

​Engine Coolant 

What is the warning for?

This warning light informs the driver that the engine is running too hot and there isn't enough coolant (antifreeze) in the engine.

What could be the cause?

This may be due to numerous reasons, all of which could leave you stranded. This could potentially be the vehicle's radiator being clogged or broken – you’ll likely see coolant dripping out if this is the case. It could also be due to a faulty water pump. Finally, a serious cause could be a blown head gasket, which can signal an engine failure if you don’t turn off the engine immediately.

What should I do?

If this light appears on your dashboard, stop the car immediately, as running hot for too long can lead to total engine failure. If your vehicle is consistently overheating, you need to get the vehicle booked into the service department.

Oil Pressure Check

What is the warning for?

This warning light informs the driver that the oil pressure is low.

What should I do whilst on the road?

  • Stop in the nearest safe place as soon as you can and switch off your engine
  • Look in your handbook
  • Check your engine oil level
  • If the level’s low, top up your oil straight away

What could be the cause?

The causes of a drop in oil pressure could include problems with the oil pump, a leaky oil pipe or simply insufficient oil in the engine. If the light comes on, stop the vehicle immediately and turn off the engine.

I have topped up my oil, the light remains illuminated?

It is advisable to call our service department if the light remains illuminated after checking and topping up the the oil level.

Brakes Warning

What is the warning for?

This warning light can indicate a number of things, all relating to the vehicle's brakes.

If it’s illuminated when you pull away, it’s likely you’ve just left the handbrake on, so check it’s properly released. However, If you’re confident the handbrake is off and the light is still on, or it comes on part way through your journey, you will need to pull over to safe and convenient place and all the service department.

  • Stop as soon as it’s safe to do so
  • Use your brakes very carefully
  • Reduce your speed gradually
  • Do not press the brake pedal suddenly

What could be the cause?

It could be as simple as your car is low on brake fluid, or something more serious. Moreover, it could be a potential sensor failure, but either way it’ll need to be taken into service to run a diagnostics test.

A couple of symptoms...

You may be able to detect a problem with the brakes when you push the brake pedal. If the pedal feels less firm that usual, or you can push the pedal all the way to the floor, then you have to call the service department immediately. You shouldn’t drive the car until the problem is diagnosed.


Should you see any of these warning lights, please do the following:

Move to a safe area – If it's safe to do, and you aren't seriously injured, move your car away from the scene of the accident. For example, move your vehicle to the shoulder of the road. If you are unable to drive, turn your hazards on to make other drivers aware that your vehicle will not be moving any time soon.


VAUXHALL: 0800 553 388
CHEVROLET: 0800 060 504
PEUGEOT: 0800 294 0294
NISSAN: 0800 246 820
RENAULT / DACIA: 0800 085 8005