How to Fix Rolls Royce Dawn Key Fob Problems

Few cars can create the kind of awe-inspiring gasp that the Rolls-Royce Dawn can. Even with the cloth top down it's a stunning car.

It is packed with all the standard features such as motorized doors that can be shut by pressing one button. Umbrellas are concealed in the door's openings. It also comes with an ultra-smooth V12 engine that is driven in near silence.

Dead Coin Battery

The most common reason for a key fob to not lock or unlock the doors is a dead coin battery. It's also one of the easiest to fix as it is usually replaced in a few minutes. Make sure to use a new coin battery that has the same size, voltage, and specifications as the first to avoid a faulty battery. Also, don't use the battery that has been exposed to clean water (rain, clean tap water, or soda) as this may damage the internal chip. If the key fob won't function after reprogramming it using an original key, you can go to an authorized dealer.

Other reasons why the key fob might not be functioning include: Water Damage, Receiver Module Issues, Signal Interference or an Electronic Chip that is damaged.

Poor Battery Contact

The button cell battery inside the key fob of your rolls royce cullinan key fob Royce Dawn can lose its charge and stop functioning. It is easy to replace the battery. But, ensure that you replace it with a brand new battery of the same voltage and size. If you're unsure of what type of battery to buy, you can consult an employee at the local auto parts store.

Corrosion on the battery terminals in the battery terminals of a Rolls Royce Dawn can also hinder the battery from beginning. This is a frequent issue in older batteries, especially if they haven't been charged for a long period of time. A multimeter can be used for assessing the conductivity of your battery to determine if your battery's terminals are corroded. Set the meter at ohms, and place one of the probes against the negative terminal of your Dawn. Then, touch the other probe to a plain metal part of the engine or chassis. The reading should be near zero ohms.

A clicking sound is another indication of an insufficient Dawn battery. This is due to the fact that the starter solenoid as well as other components require high currents of electricity, while the engine requires a lower current to operate. This means that the battery cannot provide enough charge.

Water Damage

If you've accidentally dropped your Rolls Royce Dawn key fob in the sink or left it in the rain, it is likely suffering from water damage. While the chip inside is protected by rubber seals prolonged exposure to pure tap water or salty ocean water can cause it to cease functioning properly.

Over time the moisture in the air can cause corrosion, resulting in faulty circuitry which can result in problems with the vehicle's security and ignition systems. It also can interfere with signal transmission, which can cause the remote keyless system to fail. The key fob may lock your car or activate the immobiliser, leaving you stranded.

To avoid this occurring, take off the key fob and wipe it clean with a damp cloth to dry out any moisture that remains. You can also place the key in an airtight container with uncooked rice or silica gel packets to help soak up any moisture. After drying the key should function normally again. If not, the problem is most likely due to the 12 volt battery or the receiver module, which requires reprogramming to fix.

Receiver Module Issues

If you've tried a new cell and the remote key fob does not work, then it might be time to replace the receiver module. This component receives radio frequency signals from your key fob and converts them into commands for the vehicle's electronic system. If the chip inside the module is damaged, it will not be able to communicate with other modules in the vehicle. You'll require a scanner to diagnose the problem. It will be able to show what the computer on the vehicle is telling it.

The battery inside the key fob of your Dawn has metal clips that hold it in place and complete the circuit. The clips may corrode and render the battery contacts ineffective. When replacing the battery, ensure that it's the exact same size and voltage as the original. It could cause damage to the chip inside the key fob.

Water damage may be the cause for the key fob suddenly stopped working. The key fob could be damaged by water if it is dropped into water or soaked in soapy water. It is possible to clean the keyfob with electronic cleaners or isopropyl ethanol, but you will need to replace the chip if it is fried.

Signal Interference

Sometimes, your Dawn key fob will stop working due to signal interference. Interference can be caused by objects that are near your vehicle or weather conditions, or transmitters using the same frequency band. A faulty receiver module can also cause interference. If you are unable to resolve your problem by cutting down on the amount of interference, try using an amplifier for signal or a range extender.

It's important to replace the button cell battery on your Dawn key fob if it's drained. To ensure compatibility with your vehicle, the battery should have the same size and voltage as the original. If your key fob begins to work intermittently, it could indicate the chip is fried.

If you have tried all the above and your key doesn't seem to be unlocking or lock, then it's time to contact an expert locksmith. A reputable locksmith can assist you with all of your Rolls Royce key fob and key programming requirements. This includes reprogramming or replacing. They'll be able to offer a quote for the work that is needed. Be sure to ask the locksmith about their rates and credentials before hiring them.

Dead 12 Volt Battery

The 12 volt battery inside your rolls royce car key Royce Dawn is responsible to provide high electrical current, not only to start the engine but also to provide power to all accessories and on-board computers. If this battery is dead, or the current flow to the engine is interrupted due to corrosion of the battery's terminals or ground connection, all on-board electronics including the remote keyless system will cease to function.

To check the condition of your Dawn battery, you can perform the test of conductivity using a multimeter. To do this remove the negative cable from the battery, and then apply one probe of the multimeter to the ground wire of the battery and the other probe to any exposed metal part of your vehicle's engine, chassis or body. The reading should be in the vicinity of zero ohms.

If the results are not satisfactory, you can replace the battery with a new one of the same size, voltage and specifications. Make sure you fully charge the replacement battery before using it. The most common reason for a faulty battery is internal degeneration due to the aging process. However, it could also be a result of an unnatural draw or if your vehicle has been parked for a long time.