2018 Infiniti QX50: common problems
The maker issued 26 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 26
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 8 |
| Visibility | 0 | 0 | 5 |
| Exterior lighting | 0 | 0 | 4 |
| Powertrain | 0 | 0 | 4 |
| Structure | 0 | 0 | 3 |
| Fuel system | 0 | 0 | 2 |
| Engine and cooling | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other…
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label =…
- INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- WINDSHIELD CRACKING This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- ABS/VDC CAN DIAGNOSIS INFORMATION This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- WHEEL BEARING COLLISION DAMAGE This bulletin has been amended
See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- DRIVE SHAFT BOOT SERVICE INFORMATION SERVICE INFORMATION If a Drive Shaft (Axle Shaft) Boot on an APPLIED…
DRIVE SHAFT BOOT SERVICE INFORMATION SERVICE INFORMATION If a Drive Shaft (Axle Shaft) Boot on an APPLIED VEHICLE is found to be leaking grease, AND There is no abnormal noise or obvious CV Joint risk due to water…
NHTSA lists 26 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Infiniti QX50?
There are no owner complaints in the NHTSA data for this year; the data comes from 26 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Infiniti QX50?
NHTSA lists 26 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Infiniti QX50 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.