2023 Infiniti Qx55
Vehicle Specs & Maintenance Data
The 2023 Infiniti Qx55 maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Infiniti Qx55.
For oil changes, the 2023 Infiniti Qx55 takes 0W-20 Full Synthetic motor oil with a capacity of 4.5 quarts. Brake fluid type is DOT 3, the recommended coolant is Blue Long Life Coolant (OAT), and transmission fluid is Nissan Matic S. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the Infiniti Qx55, torque the lug nuts to 80 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
Owners of the 2023 Infiniti Qx55 have reported 5 common issues including "VC-Turbo Engine Bearing Noise", "CVT Droning Noise at Highway Speed" and "Coupe Roofline Rear Visibility Limitation". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2023 Infiniti Qx55 uses 0W-20 Full Synthetic motor oil (4.5 qt capacity), requires lug nuts torqued to 80 ft-lbs, takes DOT 3 brake fluid.
Manufacturer-recommended maintenance schedule for the 2023 Infiniti Qx55. Always verify intervals against your owner's manual.
Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2023 Infiniti Qx55.
Common problems reported by 2023 Infiniti Qx55 owners, with recommended fixes and estimated repair costs.
VC-Turbo Engine Bearing Noise
The 2.0L variable compression turbo engine produces a metallic knocking or bearing noise, particularly at startup and during the variable compression ratio transitions. The variable compression mechanism's multi-link connecting rods create additional stress points that can develop noise as they wear.
Dealers perform a noise diagnostic to determine if the sound is within specification or indicates bearing wear. Nissan/Infiniti has issued an extended warranty for certain VC-Turbo engine components. Severe cases require engine bearing or short block replacement.
Est. Cost: $0 (extended warranty) / $3,000 - $7,000 (out of warranty)CVT Droning Noise at Highway Speed
The CVT produces a droning or humming noise at sustained highway speeds that is transmitted into the cabin. The noise is more noticeable in the QX55 than in the QX50 due to the coupe-like roofline allowing less insulation. Owners describe it as similar to driving on rough pavement.
A CVT software update can adjust the simulated shift points to reduce sustained RPM at highway speed. Adding sound deadening material in the trunk area and rear wheel wells can help. A CVT fluid exchange with fresh NS-3 fluid may also reduce transmission noise.
Est. Cost: $0 (software update) / $200 - $400 (CVT fluid exchange) / $300 - $600 (sound deadening)Coupe Roofline Rear Visibility Limitation
The sloping coupe roofline severely limits rear visibility, and the small rear window combined with thick C-pillars creates large blind spots. While not a mechanical defect, owners frequently complain that the rear camera and sensors do not fully compensate, making parking and lane changes difficult.
Ensure the 360-degree Around View Monitor is functioning correctly and all four cameras are clean. Aftermarket blind spot mirrors can supplement the electronic system. Adjusting the side mirror positions using the SAE method reduces blind spots.
Est. Cost: $0 (mirror adjustment) / $50 - $150 (aftermarket blind spot mirrors)Infotainment Wireless Connectivity Drops
The infotainment system frequently drops wireless Apple CarPlay and Android Auto connections. Bluetooth audio also disconnects intermittently, reverting to FM radio mid-stream. The system sometimes fails to recognize previously paired phones, requiring the device to be deleted and re-paired.
Update the infotainment firmware to the latest version. Delete all paired devices and re-pair from scratch. An Infiniti software update improves Bluetooth and wireless connectivity stability. Using a USB cable for CarPlay provides a more reliable connection.
Est. Cost: $0 (software update)Excessive Road and Tire Noise
Owners report significantly more road and tire noise than expected for a luxury vehicle. The Continental CrossContact RX tires fitted from the factory become noticeably louder after 10,000-15,000 miles as the tread wears unevenly. The noise is particularly evident on concrete highways.
Rotate tires every 5,000 miles to promote even tread wear. Replacing the factory tires with a quieter touring tire such as the Michelin CrossClimate2 or Continental PureContact LS improves cabin noise levels. Wheel alignment should be checked to prevent uneven wear.
Est. Cost: $100 - $150 (rotation and alignment) / $800 - $1,200 (set of replacement tires)