Transmissions

5-Speed Manual Transmission
A lightweight, compact 5-speed manual transmission is available with either the 177- or 190-horsepower Accord four-cylinder engine. Housed in a rigid die-cast aluminum case, the transmission uses multi-cone synchronizers on first through fourth gears that contribute to a smooth, fluid shift feel. A single plate clutch with a diaphragm-type spring provides smooth, progressive engagement combined with low pedal effort.

Close-Ratio 6-Speed Manual Transmission
While most Accord V-6 models have a 5-speed automatic transmission, the EX-L V-6 Coupe is also available with a close-ratio 6-speed manual transmission. This short-throw unit is designed to take advantage of the high power and torque of the new Accord V-6 engine and give enthusiast drivers maximum control.

Substantially lighter than the automatic transmission, the 6-speed manual features a high-pressure die-cast aluminum-alloy transmission housing to save weight. High-strength steel gears are used, and the shafts are hollow, netting a further reduction in weight.

Closely spaced ratios help provide stronger acceleration by keeping engine revs up closer to the engine's horsepower peak. A reverse lockout feature prevents the transmission from accidentally being shifted into reverse while the car is moving forward.

The Accord's manual transmission is matched with a compact clutch unit that is self-adjusting for consistent pedal stroke and load throughout its service life. A dual-mass flywheel cuts down the transfer of engine vibration into the cabin and provides increased comfort during shifting and helps to reduce noise.

5-Speed Automatic Transmission
Accord four-cylinder and V-6 models are available with 5-speed automatic transmissions with Grade Logic Control. Four-cylinder engines have a compact three-shaft transmission design that is engineered for smooth operation and fuel efficiency. To accommodate the large displacement and high power output of the Accord V-6 engine, a four-shaft, 5-speed automatic transmission related to the transmission used in the Honda Odyssey is used.

Accord's Powertrain Control Module (PCM) manages overall powertrain operation, and provides precise management of the interaction between automatic transmission and engine. This integrated control strategy makes for smoother shifts with reduced shift shock. VCM engines are equipped with a long torsional control damper to helps enhance overall transmission smoothness.

Different transmission gear ratios are used for the 177-horsepower and 190-horsepower four-cylinder engines. To take full advantage of the 190-horsepower engine's added high-rpm power, its 5-speed automatic transmission has lower second-, third- and fourth-gear ratios (higher numerically). This provides an added boost to acceleration and responsiveness. The first- and the fifth-gear ratios are common among all four-cylinder engines, resulting in an efficient and quiet cruising rpm at higher speeds.

Grade Logic Control
To reduce gear "hunting" and unnecessary shifting, Grade Logic Control and Shift Hold Control systems are integrated into the shift programming of Accord automatic transmissions. Grade Logic Control alters the 5-speed automatic's shift schedule, reducing shift frequency while traveling uphill or downhill. Using inputs monitoring throttle position, vehicle speed and acceleration/deceleration, Grade Logic compares the operating parameters with a digital map stored in the transmission computer. When the system determines the Accord is on a hill, the shift schedule is adjusted to automatically hold the transmission in a lower gear for better climbing power or increased downhill engine braking.

Shift Hold Control
Shift Hold Control prevents upshifts to higher gears (fourth and fifth) in repeated winding-road situations where the throttle is quickly released and the brakes are applied. This reduces disturbance to the chassis when entering a corner, and ensures strong power is available without a downshift. Shift Hold Control improves throttle responsiveness and reduces unnecessary shifting on curving roads.