How to Update a Sat Nav Guide + Video
Upgrade Your GPS Sat Nav
Sat navs are incredibly useful in-car devices, guiding drivers to their destinations with clear instructions and helpful visuals when needed. But what happens when a new road is built that could get you there quicker? Or if the new housing estate you’re trying to find is still showing as a field on your device?
Thanks to constantly changing road networks and infrastructure, it’s important to update your sat nav from time to time to avoid being sent down roads that no longer exist or missing new routes and motorway junctions.
Road layouts, speed limits and points of interest are updated regularly, meaning outdated maps can lead to longer journeys or incorrect routing.
Here’s a quick guide to keeping your sat nav up to date.
What is a sat nav update?
A sat nav update doesn’t change the device physically; instead, it updates the software and maps stored on it.
Like a smartphone or computer, sat navs run on an operating system that:
- Provides the user interface.
- Calculates routes and distances.
- Connects to GPS satellites.
This is the software that’s updated.
When roads change or new routes are introduced, the maps stored on your sat nav can become outdated. Manufacturers update these maps within new software packages, which are then made available to users. Updates can also include changes to:
- Speed limits.
- Traffic systems.
- Points of interest like petrol stations or EV chargers.
When should I update my sat nav?
As a general rule, you should update your sat nav every 3–6 months. Even if you don’t travel far, regular updates are still important as road networks can change quickly.
Other key reasons to update your sat nav include:
- Software improvements.
- Bug fixes.
- New features.
Many manufacturers release updates multiple times per year. It’s also best practice to check for updates before long journeys or when travelling to unfamiliar areas.
Types of sat nav updates available
Map Updates
Map updates need to be downloaded from the manufacturer’s website. These will bring you up to speed with new road layouts, routes and destinations.
Additional Maps
Useful if you’re travelling abroad, as they can allow you to add new countries or regions to your device.
Software Updates
Improve performance, fix bugs, and may introduce new features or interface improvements.
How do I update my sat nav?
Before you start, make sure your sat nav is registered on the manufacturer’s website. You’ll usually need:
- Your device serial number.
- Your name and address.
Once registered:
- Visit the manufacturer’s website.
- Download any required software (e.g. PC or Mac programs).
- Check for available updates.
- Connect your sat nav to your computer.
- Download and install updates.
Depending on the size of the update, this can take anywhere from a few minutes to an hour.
Many newer sat nav models now feature:
- Wi-Fi connectivity.
- Automatic updates.
If your device supports this, simply connect it to your home Wi-Fi network and follow the on-screen instructions. Some devices may require you to manually confirm updates in the settings menu.
What will happen if I don’t update my sat nav?
Nothing serious will happen and your sat nav will still function. However, you may later notice that:
- Routes are outdated.
- New roads are missing.
- Journey times are inaccurate.
Outdated sat navs can also lack updated speed limits or road restrictions, which could impact safety and efficiency.
When is it time to upgrade your sat nav?
If your sat nav is starting to show its age, it may be worth upgrading.
Newer models often include:
- Automatic or wireless updates.
- Live traffic information.
- Improved route planning.
- Larger, clearer displays.
Older devices may even eventually stop receiving updates due to hardware limitations, meaning map accuracy will continue to decline over time.
If you’re thinking about upgrading your sat nav to a new model, start with our sat nav buyer’s guide to find the right one for you.
04/26