It’s a scenario many car owners dread, but happens more often than you think: discovering your car key fob has taken an unexpected swim in the washing machine. Maybe it was left in a pocket, or perhaps it slipped into a puddle – however it happened, a wet car key fob can be a stressful discovery. But don’t panic! Before you rush to conclusions about needing a costly replacement, there are steps you can take to potentially salvage your waterlogged car key fob.
Having a spare car key is always a smart move, especially in situations like this. Whether or not you manage to revive your wet fob, a spare key will be invaluable while you’re dealing with the drying process. Even if your primary fob eventually works again, you’ll need a backup during the crucial drying time.
Steps to Dry Out Your Wet Car Key Fob
Water and electronics are definitely not friends. When moisture infiltrates your car key fob, quick action is key to minimizing potential damage. For this guide, we’ll focus on the most common culprit – water – but these steps are also applicable if your fob has been exposed to other liquids.
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Initial Drying: The first step is to act fast and absorb as much surface water as possible. Grab a paper towel or tissue – anything absorbent you have readily available. Orient the key fob with the buttons facing downwards to encourage any trapped water to escape. Gently shake the fob to dislodge water droplets from inside, and then thoroughly dry the exterior casing and around all the buttons.
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Battery Removal (If Possible): If you’re comfortable doing so, removing the battery is highly recommended. Most car key fobs can be carefully opened using a small screwdriver or a similar tool. Car key fob batteries are usually small, silver, disc-shaped batteries, similar to those found in watches. They are typically easy to pop out. If you’re hesitant to open the fob, you can still proceed with the drying process, but removing the battery offers an extra layer of protection. Crucially, if you do remove the battery, don’t replace it until you are absolutely certain the fob is completely dry.
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Thorough Drying: Now comes the waiting game – and proper drying is essential. While some suggest using uncooked rice, it’s not the ideal solution. Rice starch can actually introduce contaminants to the fob’s delicate internal components. The most effective and safest method is simply time and a warm, dry environment. Leave your key fob in a warm, dry room for a couple of days to allow all moisture to evaporate naturally.
Avoid the temptation to use heat sources like radiators or hairdryers! Excessive heat can damage the sensitive electronics inside the fob. Patience is key here. To slightly expedite the drying process, you can place the fob on a high shelf in the room. Warm air rises, so the higher location will generally be slightly warmer and drier. After waiting at least 48 hours, or when you are confident the fob is completely dry, try reinserting the battery (or a new one if you removed the old one) and test if the key fob functions as normal.
If your car key fob springs back to life, congratulations! You’ve successfully rescued it. However, if it remains unresponsive, don’t worry. Keys 4 Cars offers a convenient and cost-effective replacement service. We are often faster and more affordable than dealerships, and our mobile service means we can come directly to you, saving you the hassle of traveling for a replacement.
