RV GPS: How It Works & How to Choose

RV's aren't just big cars

Most smartphones and car GPS apps only care about one thing: the fastest route. They don’t account for low-clearance bridges, weight-restricted roads, narrow lanes, steep grades, and sharp turns that are no problem for most cars. However, they can be terrifying in a 40-foot motorhome. An RV GPS is designed to route you safely, not just quickly.

RV GPS uses a specialized mapping database that includes bridge heights, road restrictions, and RV-unfriendly routes. This mapping was first utilized for truck-style routing, but it’s been optimized for RVs. The RV GPS lets you input your motorhome's height, length, width, and weight. Some even let you enter the number of axles you have. Once entered, the GPS avoids roads, bridges, and tunnels that don’t meet your RV’s requirements. Some even alert you well before a potential issue, giving you time to change lanes or reroute calmly.

RV-specific travel guidance

Just like your phone’s GPS can tell you how far the nearest gas station or restaurant is, many RV GPS units include the locations of campgrounds, RV parks, dump stations, fuel stops with RV access, and rest areas. This is especially handy when you’re traveling in unfamiliar areas or boondocking.

Smartphone GPS apps like Google Maps, Apple Maps, and Waze are free, easy to use, and great for traffic updates. But they don’t account for RV height and weight. They could route you into unsafe situations and rely heavily on cellular service.

RV-specific GPS units work without cell service. They have RV-specific routing. They usually have larger screens designed for dash mounting, as well as safety alerts for grades, curves, and clearances. However, they also come with upfront costs and require occasional map updates.

GPS options available

You have a few different options when it comes to RV GPS units. Brands like Garmin RV series and Rand McNally are purpose-built for RV travel. These are great for motorhomes, fifth wheels, and full-time RVers who want maximum peace of mind. 

Many newer Class A and Class C motorhomes include navigation tied into the dash system. This works for drivers who want a clean, factory-installed setup with minimal accessories. There are also apps like RV Life, CoPilot RV, and others that allow RV-specific routing on your phone or tablet. This is best for travelers who prefer flexibility and don’t want another device on the dash.

Choose the right RV GPS for your needs

When choosing the right RV GPS for you, ask yourself these questions:

What are you driving? 

If you are in a Class A diesel pusher, go ahead and go with a dedicated RV GPS. In a sprinter van or small Class C, an RV GPS app may be enough. If you're towing a fifth wheel, make sure the system allows combined length and weight.

How do you travel?

If you are full-timing or taking cross-country trips, a dedicated unit is recommended. For weekend trips and familiar routes, app-based solutions may work. And if you boondock or travel through remote areas, offline navigation is critical.

Truth be told…Many experienced RVers use both an RV GPS for safety and a phone app for traffic and last-minute detours.

An RV GPS system isn’t about convenience; it’s about confidence

Knowing your route is safe for your RV means less stress, fewer surprises, and a much more enjoyable travel day. Whether you choose a dedicated RV GPS, an app, or a combination of both, the key is using a system that understands your rig, not just the road.

If you’re shopping for an RV or upgrading your current setup, an RV GPS is one of those tools you’ll appreciate every single mile.

Safe travels—and happy camping!