How Off-Road Modes Help Your Truck Conquer Sand, Mud, and Rocks
These settings will help you remain in control of your 4x4.
Ford | Jeep | Ram
Practically every new four-wheel-drive truck and SUV on the market has at least one driving mode to make off-road travel easier. Here's a breakdown of what the most common settings do.
The most basic off-roading modes tend to soften throttle response, so the driver can better modulate acceleration and prevent the wheels from digging into or slipping on loose ground. In an automatic-equipped vehicle, the mode adjusts the gearbox’s shift schedule so that the transmission favors the lower gears and limits momentum-sapping upshifts. This keeps the engine in its powerband and helps to maximize engine-braking.
The mode may also reduce electronic traction-control intervention, so that if wheelspin occurs, the vehicle’s brakes don’t clamp down and arrest forward movement. This places the onus on the four-wheel-drive system to manage grip and direct torque to whichever wheels have the most traction.
Often bundled, the Sand and Mud modes help drivers keep momentum on sandy and/or muddy surfaces. They typically dial back traction control so that the wheels can spin, and they tell the transmission to stick to the lower gears, which offer greater multiplication of engine torque than high ones. More sophisticated four-wheel-drive systems may also vector torque from one side of the vehicle to the other to help improve traction when these modes are active.
Rock Crawl Mode
Rock crawling—wherein a vehicle climbs over boulders—requires tremendous dexterity, precise speed control, and the additional torque multiplication offered by a low-range, four-wheel-drive transfer case. A dedicated mode for this activity usually locks a vehicle's differentials to help maintain steady torque distribution across the drive wheels, and it engages the lowest gearing of the 4x4 system. On some models, Rock Crawl mode may raise the suspension for better clearance and disconnect the front anti-roll bar to improve wheel articulation.
Intended to maximize performance during high-speed desert driving, Baja mode is specific to hardcore 4x4s, such as the Ford F-150 Raptor and certain Broncos and the Ram 1500 TRX. It combines the linear throttle response of a standard off-road mode with the 4Hi four-wheel-drive setting and a reduced level of stability control. In the Ram, Baja mode also engages the vehicle’s most aggressive damper setting and sends 75% of the engine’s torque to the rear.