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Key technical features include the direct injection gasoline system, cylinder heads with integrated exhaust manifolds, a variable displacement oil pump, variable timing control and a variable tumble control valve. The engine is assembled at Nissan"s advanced engine facility in Decherd, Tenn., alongside the full-size TITAN pickup"s 5.6-liter Endurance® V8.

The 9-speed automatic transmission is similar to the one introduced on the 2020 TITAN and is designed to maximize powertrain efficiency and provide enhanced acceleration feel. With enhancements such as an expanded lockup area, a new high-response electro-hydraulic system, long input shaft and a 99 percent larger gear range, the transmission offers quick, crisp and direct shift response throughout the entire gear range. The 9-speed automatic transmission is also noticeably quiet due to a centrifugal pendulum absorber.

Frontier 4WD models include a shift-on-the-fly 4-wheel drive system with 2WD/4H/4LO modes operated by an electronically controlled part-time transfer case. Frontier 4WD models are available with 4-wheel limited-slip system, which helps transfer power to the drive wheels with more grip on low traction surfaces.

The available Hill Descent Control feature allows slow hill descent without the constant application of the brake pedal. Hill Descent Control must be engaged by the driver (via a switch) and is available only when the transfer case is engaged in 4H or 4LO (it works in both forward and reverse). It can be activated at speeds up to 21 mph in 4H and 15 mph in 4LO.

Hill Start Assist can allow the driver to stop on an incline. The system is designed to release the brake pedal and not roll back for up to two seconds while the driver moves his or her foot to the accelerator for a smooth, controlled start. HSA operates in 4WD models in 2WD, 4H and 4LO. Hill Descent Control and Hill Start Assist are standard on all 4WD models. A 2-Wheel Brake Limited Slip system is standard on all 2WD models.

Other Frontier driveline components include engine-speed-sensitive power-assisted rack-and-pinion steering and standard 4-wheel disc brakes with Anti-lock Braking System.

The 2021 Frontier offers a long list of standard features, including push button start, leather shift knob, manual tilt steering, power door locks and power windows with driver side auto-down. Also standard on the Frontier S grade are 16-inch styled steel wheels with 65/70R16 tires. Frontier SV again offers 16-inch aluminum-alloy wheels.