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Service bulletins for the 2014 Infiniti Q50

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.

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

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Only bulletins with component: Steering are shown. Show all

Bulletins, newest first
ITB13033A2021-05-10. Service bulletin. LANE DEPARTURE; POWER TRAIN; AIR BAGS; STEERING; WHEELS. SERVICE INFORMATION: At engine start up, if a low 12 volt battery condition (approximately 8 volts) occurs with an Applied Vehicle, the following conditions may happen: * The Power Steering Warning Light is, or may have been ON. * DTC codes C13EB (DAST1, DAST2) and C13E9 (DAST1) may be stored as current or past. * Power steering will go to EPS mode (reduced power assist). Additionally, * The steering wheel may be off-center when starting to drive. Please see this bulletin for futher details.
ITB00024F2021-05-10. Service bulletin. STEERING; SUSPENSION; SERVICE BRAKES. SERVICE INFORMATION - This bulletin is to assist you in responding to customer questions about brake operation, and provides diagnostic and repair information for each item listed, if any should occur. - Most brake issues fall into the following categories: a. Brake Noise: A squeak, squeal, clunk, or groan that occurs when the brakes are applied or released. b. Brake Judder: A vibration that can be felt in the vehicle, steering wheel, or brake pedal when the brakes are applied. c. Pedal Feel: The effort needed to operate the brakes is too high or too low. SERVICE PROCEDURE 1. Verify the condition by road testing the vehicle with the customer. 2. Determine the specific brake issue based on the description in the Service Information above. 3. Follow the appropriate repair procedure(s), listed on the following pages, for your specific issue. See this bulletin for further details.
ITB04038A2021-05-10. Service bulletin. SERVICE BRAKES; STEERING; WHEELS. If YOU CONFIRM: A vehicle needs to have the brake rotors resurfaced (front or rear). ACTION: Use the ProCut PFM Series on-car brake lathe to perform brake rotor resurfacing and follow the tips listed in this bulletin. - The ProCut PFM Series brake lathe has been chosen as the approved tool for rotor resurfacing. - The ProCut PFM Series brake lathe can be ordered from TECH-MATE at 1-800-662-2001. - ProCut technical support or service can be obtained by calling 1-800-543-6618. NOTE: Brake rotors may need to be resurfaced during routine brake repair or for brake "judder" incidents. - Brake judder: A brake pedal pulsation and/or steering wheel shimmy when braking that occurs when there is too much thickness variation of the brake rotors (see ITB00-024). See this bulletin for further detail.
ITB18-0212018-06-18. Service bulletin. STEERING; ELECTRICAL SYSTEM. DAST CALIBRATION (MODE1) INCOMPLETE OR C13E9-00/C13EB-00 UNABLE TO ERASE This bulletin applies only to vehicles equipped with Direct Adaptive Steering (DAST). SERVICE INFORMATION This bulletin has information for two services for which a technician may need additional help: - While performing DAST CALIBRATION (MODE1), the calibration may stop or will not start. - DTC C13E9-00 (BOOTING ANGLE PROCESSING) and C13EB-00 (BOOTING ANGLE PROCESSING) are stored and cannot be erased. The above conditions may indicate that DAST CALIBRATION (MODE1) was not performed correctly or was not completed correctly. Use the SERVICE PROCEDURE in this bulletin as an aid to correctly perform and complete DAST CALIBRATION MODE 1. NOTE: - The SERVICE PROCEDURE in this bulletin does not contain all of the required steps. - The Electronic Service Manual (ESM) must be used together with this bulletin. - This bulletin contains additional clarification as an aid to perform DAST CALIBRATION MODE 1.
ITB-14-0072014-02-21. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; ELECTRICAL SYSTEM:SOFTWARE. INFINITI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. REPROGRAMMING AND RECALIBRATING THE DIRECT ADAPTIVE STEERING (DAST) ON CERTAIN VEHICLES. MODEL 2014 Q50, Q50 HYBRID. *PE UPDATED 2/24/14. *PE
ITB-14-0082014-02-21. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; ELECTRICAL SYSTEM:SOFTWARE. INFINITI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN MODEL VEHICLES WILL HAVE DIRECT ADAPTIVE STEERING SYSTEM (DAST) CONTROL MODULES, REPLACED, REPROGRAMMED AND RECALIBRATED. MODEL 2014 Q50 HYBRID. *PE UPDATED 2/24/14. *PE
ITB-14-0062014-02-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING:AUTOMATED/ADAPTIVE STEERING. INFINITI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE DIRECT ADAPTIVE STEERING (DAST), IS BEING REPROGRAMMED. MODEL 2014 Q50, Q50 HYBRID. *PE UPDATED 2/24/14. *PE
ITB-14-0092014-02-21. Service bulletin. STEERING:AUTOMATED/ADAPTIVE STEERING; ELECTRICAL SYSTEM:SOFTWARE. INFINITI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE DIRECT ADAPTIVE STEERING SYSTEM (DAST) CONTROL MODULES, ON CERTAIN VEHICLES, ARE BEING REPLACED, REPROGRAMMED AND RECALIBRATED. MODEL 2014 Q50. *PE UPDATED 2/24/14. *PE
ITB-13-0462013-12-26. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM. INFINITI: INFORMATION PROVIDED REGARDING THE LOW POWER ASSIST FOR POWER STEERING REPAIR, ON SOME VEHICLES. MODEL 2014 Q50. *PE

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