Why We Love Rolls Royce Dawn Key (And You Should Too!) How to Fix Rolls Royce Dawn Key Fob Problems

Few cars can elicit the kind of awe-inspiring gasp that the Rolls-Royce Dawn can. Even with the cloth roof down, it's still an impressive car.

It comes with all the standard devices such as motorized doors that can be shut by pressing the button. Umbrellas are concealed within the door's openings. It is equipped with an incredibly smooth V12 engine that can be driven in almost silence.

Dead Coin Battery

A dead coin battery is the most frequent cause of a key fob that isn't locking or unlocking the doors. It is also the easiest to fix since it can be replaced in just a few minutes. To avoid the possibility of a defective coin battery, always choose a replacement battery with identical in size, voltage and specifications as the original one. Also, don't use a battery that has been exposed to clean water (rain or clean tap water or even soda) as this may harm the internal chip. If the key fob still does not work you can try reprogramming it using the original key or visit an authorized dealer.

Water damage, Receiver Module issues, Signal Interference and a defective electronic chip are a few other reasons that the key fob might not work.

Poor Battery Contact

The button cell battery inside the key fob of your Rolls Royce Dawn may lose its charge. Replacing the battery is a quick and easy fix. Be sure you replace it with a new battery with the same size and voltage. Talk to an employee at the auto parts store if are unsure what type to purchase.


Corrosion on the battery terminals of a Rolls Royce Dawn can also prevent it from beginning. This is a problem that is seen in older batteries, especially in the event that they haven't been fully charged for a long amount of time. To ensure that your battery's terminals are corrosion free, you can use a multimeter to check the conductivity. Set the meter on the ohms scale, and then place one of the probes against the negative terminal of your Dawn. Then, you can connect the other probe to a bare metal part of the chassis or engine. The reading should be close to zero ohms.

Another sign of a weak battery in your Dawn is clicking noise when you try to start the engine. This is due to the fact that the starter solenoid and accessories require high electric current, while the engine requires a lower current to work - this means that the battery cannot provide enough charge.

Water Damage

Damage to your water pipes is likely to occur if you accidentally drop your Rolls Royce Dawn Key Fob in the sink, or leave it in the rain. While the chip inside is protected by rubber seals, prolonged exposure to clean tap water or salty ocean water can cause it to stop working properly.

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

To avoid this happening, remove the key fob and wipe it with a damp cloth to dry any moisture that remains. You can also place the key in an airtight container with uncooked silica gel or rice packets to absorb any residual moisture. After drying the key should function normally again. If not, the issue is likely to be with the 12 volt battery or receiver module, which needs changing the program to fix it.

Receiver Module Issues

If you've already tried a different battery, but the remote key fob isn't working, it might be time to replace the receiver module. This is the part that receives the radio frequency signals from the key fob and transforms them into commands for your vehicle's electronics. If the chip inside the module is damaged, the module will not be able communicate with the other modules of the vehicle. To diagnose the problem you'll require an OBD scanner that will reveal what the onboard computer is telling it to do.

The battery in the key fob of your Dawn has metal retaining clips that keep it in place and complete the circuit. These clips are susceptible to corroding and render the battery's contact ineffective. When replacing the battery, make sure 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 of a key fob that suddenly stopped working. The key fob can be damaged by water if dropped in water or soaked in soapy water. It is possible to clean the keyfob by using electronic cleaners or isopropylethanol but you will have to replace the chip if it is fried.

Signal Interference

Signal interference could cause your Dawn keyfob to cease functioning. rolls-royce phantom key price TheKeyLab could be caused by objects that are within the vicinity of your car, weather conditions and transmitters that operate on the same frequency band. The interference can result from a defective receiver module. If you're unable to solve your issue by reducing the amount of interference, you could try using an amplifier or range extender.

If the battery for the button cell is completely depleted, it's time to replace it. To ensure compatibility with your vehicle, the battery must have the same voltage and size as the original. If your key fob ceases to malfunction intermittently, it could mean the chip is fried.

If you've tried the above methods but are still unable to unlock your key or lock, it's likely time to call an experienced locksmith. A reputable locksmith will assist you with all of your Rolls Royce key fob and key programming needs. This includes reprogramming and replacement. They can provide you with a price estimate for the work needed. Be sure to ask the locksmith about their fees and credentials before hiring them.

Dead 12 Volt Battery

The 12 volt Battery in your Rolls Royce Dawn provides high current to start the engine as well as for all onboard computers and accessories. If the battery is dead or the flow of current to the engine is disrupted due to corrosion on the battery terminals or ground connection, all electronics onboard including the remote keyless system will stop working.

You can use a multimeter to check the conductivity of your Dawn battery. To accomplish this remove the negative cable from the battery, and then connect one probe of the multimeter to the ground wire of the battery and the other probe to any exposed metal component of your vehicle's engine, chassis or body. The reading should be near zero in ohms.

If the results are not satisfactory you can replace the battery with a new one with the same voltage, size and specification. Make sure that you fully charge the new battery before using it. A common cause for an unsatisfactory battery is internal degradation resulting from the effects of aging however it could also be due to an excessive draw or if the vehicle was parked for long periods of time.