2013 Nissan GT-R Owner's Manual - Page 32

1588F (708C), drive the vehicle until it reaches normal operating temperature. If the temperature is higher than 2308F (1108C), perform cooldown driving procedure. ( "Cool down" page GTR-13) When the temperature of the engine coolant is between 1588F (708C) and 2308F (1108C), the engine output returns to normal. NOISES ARE HEARD WHILE DRIVING . The GT-R brake pads use material that provides a high amount of braking power even in high temperatures. This material can cause an intermittent screeching noise just before the vehicle comes to a stop when the brakes are gently applied. The noise decreases as the brake pads wear. However, the additional brake pad break-in or replacing the cross spring may decrease the noise. Contact a GT-R certified NISSAN dealer. A screeching noise may be heard when the brake pedal is depressed: - When driving the vehicle for the first time in the morning, - After leaving the vehicle parked for extended periods of time, or - When the vehicle is damp following rain showers or washing the vehicle. These sounds are normal. The noise is caused when the brake pads absorb moisture, and the noise stops after the brake is applied several times. A screeching noise may also be heard when the brake pedal is depressed: - When repeatedly applying gentle braking, especially on a curve at a low speed, or - When the brake rotors have circular scores with the brake temperature high. WARNING Follow the instructions below when parking the vehicle to help prevent the brake rotor and brake pads from rusting together. Failure to follow the instructions could cause the rotor and pads to rust together. If the rotor and pads rust together, there may be a popping noise and some vibration when the vehicle is driven, a wheel may not roll correctly, or the brake pads could be damaged. If the pads are damaged, this may reduce the effectiveness of the brake system which could cause a collision, serious personal injury or death. . The GT-R uses brake pad materials that have high metallic content. The brake pad material helps maintain braking performance in a wide range of weather and driving conditions. GT-R Overview GTR-25 DISTORTION OF REAR SPOILER When the vehicle is parked in direct sunlight on a hot day, the center of the rear spoiler may become distorted. This is normal. When the surface temperature of the rear spoiler is reduced, the shape of the spoiler should return to normal. . UNEVEN WEAR OF TIRES The GT-R is equipped with high performance, low profile, run-flat tires that are optimized for performance and handling. The life of these tires will be less than those of tires installed on a typical vehicle, and you are likely to experience uneven tire wear and tire noise regardless of the type of tire used. .