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Service bulletins for the 2019 Infiniti QX50

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

172 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
ITB21-023B2024-01-09. Service bulletin. POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-001E2024-01-09. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT OIL SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-008D2023-04-04. Service bulletin. POWER TRAIN:AXLE HUBS. 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.
ITB22-0412022-12-06. Service bulletin. POWER TRAIN. 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 intrusion and/or complete grease loss, check for REPAIR KIT-DUST BOOT (cv Joint Boot Kit) availability. • If there is a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, do NOT replace the axle. Install a new boot kit following the procedure in the ESM. o Refer to the ESM: TRANSMISSION & DRIVELINE > FRONT AXLE > REMOVAL AND INSTALLATION > FRONT DRIVE SHAFT BOOT o If the complete axle (drive shaft) is replaced when only a new boot is required, the over-repair may be charged back to the retailer. • If there is NOT a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, refer to the ESM for further diagnostic information. IMPORTANT: When servicing vehicles with staked axle nuts, refer to ITB21-002 to prevent Drive Shaft thread damage.
ITB12-072I2022-12-06. Service bulletin. POWER TRAIN. ABNORMAL NOISE, VIBRATION AND/OR BINDING FEELING FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-008C2022-10-07. Service bulletin. POWER TRAIN. 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.
ITB12-072H2022-08-26. Service bulletin. POWER TRAIN. INFINITI AWD MODELS; ABNORMAL NOISE, VIBRATION AND/OR JUDDER FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-023A2022-08-26. Service bulletin. POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-001D2022-08-26. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT OIL SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB12-072G2022-05-20. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; EQUIPMENT:MECHANICAL. INFINITI AWD MODELS; ABNORMAL NOISE, VIBRATION AND/OR JUDDER FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-001C2022-03-12. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0232021-11-08. Service bulletin. POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL SERVICE INFORMATION When removing the front passenger (RH) side drive shaft on an applied vehicle for any reason, transfer assembly drive shaft oil seal and dust cover seal replacement is required. Refer to the SERVICE PROCEDURE in this bulletin.
ITB13-008B2021-07-10. Service bulletin. POWER TRAIN. 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.
ITB17-001B2021-06-09. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0022021-03-06. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. PREVENT FRONT AXLE THREAD DAMAGE DURING AXLE NUT REMOVAL SERVICE INFORMATION If an Applied Vehicle needs to have a front axle nut removed, for any reason, the staking of the nut into the axle keyway must first be removed. The essential tool (part number # J-52982, Figure 1) required to remove the nut staking, is called out as a “Cape Chisel” in the Electronic Service Manual (ESM), and must be used to prevent thread damage to the axle (see Figure 2 on page 2). • The Cape Chisel arrived at dealers in December of 2020. • Damaged threads, due to improper removal of the stake placed in the nut, will not be covered by warranty. For information on using the Cape Chisel, refer to the Electronic Service Manual (ESM): Section TRANSMISSION & DRIVELINE > FRONT AXLE > REMOVAL AND INSTALLATION > FRONT DRIVE SHAFT > LH/RH.
ITB20-0302021-01-09. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. 2019-2020 QX50; CVT FLUID COOLER HOSE LEAK IF YOU CONFIRM CVT fluid is leaking from the upper CVT fluid cooler hose, at the CVT cooler. Or The upper CVT fluid cooler hose has become detached while driving. NOTE: If CVT fluid is leaking from any other location, this bulletin does not apply. Refer to the ESM for further diagnostic and repair information. ACTION Follow the service procedure in this bulletin to replace the upper CVT fluid cooler hose and clamps. • Do NOT follow the procedure in the ESM for CVT fluid cooler hose replacement. • Do NOT reconnect the original upper CVT fluid cooler hose.
ITB20-0272021-01-09. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). PERMANENT DTC SET IN TCM AND WILL NOT ERASE IF YOU CONFIRM One or more of the following DTCs are stored in the permanent DTC screen (Figure 1): P0715, P0716, P0718, P0730, P0791, P0793, P0794, P1722, P1742, P1745, P17F0, P17F1, P2766 And The DTCs will not erase when following the ESM procedure. NOTE: • If DTCs other than those listed above are stored, this bulletin does not apply. ACTION Replace the TCM.
ITB17-001a2020-04-07. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB18-0342018-12-03. Service bulletin. POWER TRAIN. TRANSMISSION & ENGINE AUTOMATED DATA COLLECTION AND DIAGNOSTIC REPORTING SERVICE INFORMATION To support proper diagnosis and to promote Fixed-Right-First-Time ? Infiniti may review CONSULT-III plus (CIII plus) data relating to vehicle operation and function to help with vehicle diagnosis and diagnostic validation. IMPORTANT: For transmission/engine repair or replacement, retailers are required to connect C-III plus and perform ?Diagnosis (All Systems)?. Performing C-III plus ?Diagnosis (All Systems)? is also required prior to contacting any Infiniti call center (i.e. TECH-LINE, PCC, or WCC) for diagnostic support or claim preauthorization. NOTE: For additional information regarding Automated Vehicle Data Collection, refer to IWBI/18-019. To support Automated Vehicle Data Collection, your C-III plus must have the Diagnosis result reporting function-Setting turned ON. If Diagnosis result reporting function-Setting is OFF: - It may cause dealer consideration for Audit or the Anomalous Repair Control (ARC) program, where applicable. - It may result in a repair being non-warrantable. Refer to the Service Procedure on the next page to confirm your C-III plus ?Diagnosis result reporting function-Setting? is turned ON.
ITB18-0282018-09-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. 2019 QX50; MIL ON WITH DTC P0606 IF YOU CONFIRM The MIL is ON with DTC P0606 (CONTROL MODULE [control module processor]) stored. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM.
ITB13-035c2018-09-17. Service bulletin. EQUIPMENT; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. CVT FLUID LEVEL CHECK SERVICE INFORMATION This bulletin has been amended. The APPLIED VEHICLES and SERVICE INFORMATION sections have been revised. No other changes have been made. Please discard all previous versions of this bulletin.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.