2020 Nissan Gt-R

The GR6 dual-clutch automated manual transmission can develop shuddering, harsh shifts, and eventual clutch pack failure. Aggressive launches and track use accelerate wear. Symptoms include vibration during low-speed maneuvers, jerky gear changes, a rattling noise at idle, and transmission warning lights. The transmission is extremely expensive to repair.

Perform a transmission fluid change with the correct Nissan R35 ATF at recommended intervals (every 18,000 miles or more frequently for track use). TSB NTB13-076 addresses certain transmission judder concerns with a TCM software update. If clutch packs are worn, they must be replaced by a GT-R certified technician. Some owners upgrade to aftermarket clutch packs (Dodson, ShepTrans) for improved durability.

Repeated use of the GT-R's launch control system places extreme stress on the transmission, transfer case, and driveline components, accelerating wear of clutch packs, differentials, and axle components. Nissan's warranty explicitly excludes damage from repeated launch control use, leaving owners responsible for expensive repairs.

Limit launch control use, particularly at high RPM settings. Have the transmission fluid and transfer case fluid changed at shorter intervals if launch control has been used frequently. Inspect the front and rear differentials for wear. Upgraded clutch packs and driveline components are available for owners who use launch control regularly.

The HVAC blend door actuators can fail, causing the climate control system to blow only hot or only cold air regardless of the temperature setting. A clicking or tapping noise behind the dashboard when adjusting temperature is the hallmark symptom. The GT-R's complex dual-zone climate system uses multiple actuators.

Replace the failed blend door actuator. The GT-R has multiple actuators controlling different zones, so diagnose which one has failed before beginning the repair. Access typically requires partial dashboard disassembly, which adds to labor time. Use OEM actuators for reliability.

The twin turbochargers can develop a wastegate rattle at idle, producing a metallic chattering sound from the engine bay. This is caused by wear in the wastegate actuator arm and flapper valve. While primarily a noise nuisance, severe wastegate wear can eventually affect boost control and lead to boost creep or underperformance.

Inspect the wastegate actuator arms for play. Mild rattle can be addressed by adjusting or shimming the wastegate actuator. Severe cases require turbocharger replacement or rebuilding with new wastegate components. Many GT-R specialists offer wastegate actuator upgrades as part of a turbo rebuild service.

The wheel bearings, particularly on the rear axle, can wear prematurely due to the extreme loads from the AWD system and high-performance driving. Symptoms include a humming or growling noise that increases with speed, play in the wheel when jacked up, and uneven tire wear. Track-driven GT-Rs are especially susceptible.

Replace the wheel bearing and hub assembly on the affected corner. The GT-R uses press-in bearings integrated into the hub assembly, making it a straightforward but precision-critical repair. Use OEM Nissan bearings or equivalent quality units. Have the alignment checked after replacement.