Full-time four-wheel drive is standard on the Titan XD. Full-time four-wheel drive gives added traction for safety in all conditions, not just off-road, like the only system available on the Tundra. Four-wheel drive of any type costs extra on the Tundra.
The Titan XD has a standard blind spot warning system which uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Tundra’s blind spot costs extra.
To help make backing out of a parking space safer, the Titan XD has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Rear cross-path warning costs extra on the Tundra and isn't available on the not available.
The Titan XD’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Tundra doesn’t offer a driver alert monitor.
Both the Titan XD and the Tundra have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, lane departure warning systems, rearview cameras, available daytime running lights and around view monitors.

