WenmarOpen by Wenmar Pro

Service bulletins for the 2002 Infiniti Q45

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.

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

By type

By component

By trouble code

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

Bulletins, newest first
ITB14021B2021-05-10. Service bulletin. POWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. SERVICE INFORMATION Replacement 5-speed rear wheel drive Automatic Transmission (A/T) assemblies and replacement control valves (valve bodies) now come with blank Transmission Control Modules (TCMs). Blank TCMs come without software and must be programmed (not reprogrammed) and then configured after they are installed. When ordering a replacement A/T or control valve, use the Infiniti electronic parts information systems to obtain the correct software program part number See this bulletin for further detail.
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.
020642003-02-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. REPLACEMENT AUTOMATIC TRANSMISSION REQUESTS NEW STYLE AUTOMATIC TRANSMISSION FLUID FILLER TUBE. *TT
ITB020412002-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING REVERSE TO DRIVE ENGAGEMENT DOUBLE THUMP WHEN COLD. *TT
ITB020402002-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES MAY EXHIBIT A DELAYED AUTOMATIC TRANSMISSION 5-2 DOWNSHIFT THAT FEELS LIKE A HESITATION (PERHAPS AT 3/4 TO WIDE OPEN THROTTLE) AND BETWEEN 40 - 60 MPH. *TT
ITB020172002-07-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SUBJECT REGRDING TRANSMISSION CONTROL MODULE (TCM) INITIALIZATION AFTER TRANSMISSION REPLACEMENT. *TT
ITB010742002-03-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). ON SOME VEHICLES, THE TRANSMISSION MANUAL MODE IS INOPERATIVE, INDICATOR LIGHT SHOWS D INSTEAD OF 4, MANUAL MODE OPERATES NORMALLY AFTER IGNITION IS TURNED OFF AND AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODE P1815 IS STORED. *TT
ITB010312002-03-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES WITH AUTOMATIC TRANSMISSION SHIFTER SELECTOR LEVERS MAY BE DIFFICULT TO SHIFT FROM REVERSE TO DRIVE OR FROM PARK TO REVERSE. *TT
ITB010312001-11-19. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR. SUBJECT REGARDING A/T SHIFT LEVER DIFFICULT TO MOVE. *YD
ITB010102001-07-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE BULLETIN AUTOMATIC TRANSMISSION FLUID REQUIREMENTS. *TT

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