# Service bulletin 121712 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. - Type: Service bulletin - NHTSA id: 10162396 - Published by NHTSA: 2019\-07\-10 - Manufacturer's number: 121712 - Manufacturer's date: 2019\-07\-09 - NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING ## NHTSA's summary N52T / N55 with 8HP45: Delay in Engine Response. A customer may complain of a delay in engine response after decelerating at low road speeds and then reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission downshifting. This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient. Unfavorable EGS and DME software ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162396-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162396-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Engine, Transmission and driveline, Automatic transmission, Transmission control module ## Vehicles listed - 2011 BMW 528I - 2011 to 2013 BMW 535I - 2010 to 2012 BMW 535I GRAN TURISMO - 2012 to 2013 BMW ACTIVE HYBRID 5 - 2011 to 2013 BMW X3 - 2011 to 2013 BMW X5 - 2011 to 2013 BMW X6 ## Recalls for the same vehicles and component - [12V019000](/recalls/nhtsa/12V019000.md), 2012-01-23: POWER TRAIN:AUTOMATIC TRANSMISSION ## Other bulletins for the same vehicles and component - [120113](/bulletins/10150159.md), 2018-12-03, Service bulletin: ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. MN16 Engine: FC 2D9B Knock Sensor, Signal Is Stored in the DME. Certain areas of the US experience extremely cold climate conditions during the winter months, which can cause the Service Engine Soon lamp to illuminate while the engine temperature is increasing to full operating temperature. The following fault may be stored in the DME: ??FC 2D9B Knock Sensor, Signal CAUSE Unfavorable DME knock sensor diagnostic at outside ambient temperatures below \-5° C - [B240712](/bulletins/10147240.md), 2018-11-05, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. "This Service Information bulletin supersedes SI B24 07 12 dated November 2012 SUBJECT Hybrid Automatic Transmission: Fluid Maintenance Service Interval. INFORMATION Only properly trained personnel, who have passed all applicable technical training courses, should perform any maintenance or repairs on any Hybrid or Electric Vehicle. Work performed by unqualified persons may result in severe injury or damage to the vehicle. Additional information may be found in REP 61 00... Observe safety instructions when handling electric vehicles. This requirement is due to the hybrid\-specific components that are contained in the transmission. Refer to Repair Instruction 00 00 630, ""Automatic transmission fluid service \(GA8P70Z\) N55 hybrid,"" for the proper servicing procedure. Refer to SI B00 09 12 for BMW Maintenance Program claim\-related information." - [SIB\-12\-01\-13](/bulletins/10052077.md), 2013-05-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: DUE TO UNFAVORABLE DME/EGS SOFTWARE, THE TRANSMISSION CAN SPORADICALLY GO INTO PARK OR NEUTRAL. THIS OCCURS AFTER AN MSA ENGINE START. ALSO INCLUDED MODEL M6 MODEL YEAR 2012. \*JS UPDATED 2/11/14. \*PE UPDATED 08/05/2014 \*JS - [SIB270212](/bulletins/10051459.md), 2013-03-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: DSC WARNING LIGHT IS ON. THE WARNING LAMPS FOR DSC, ABS AND BRAKE WARNING ILLUMINATED. THERE MAY ALSO BE A WARNING IN THE CONTROL DISPLAY FOR CHASSIS CONTROL SYSTEM FAILURE. \*JS - [SIB\-24\-02\-11](/bulletins/10040172.md), 2011-08-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: A SOFTWARE PROBLEM IS CAUSING THE TRANSMISSION TO ENTER SAFETY MODE WITH THE TRANSMISSION LIGHT ON. THERE IS A STORED TROUBLE CODE. \*RM - [SIB\-24\-01\-11](/bulletins/10040171.md), 2011-08-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: TRANSMISSION OIL IS LEAKING BECAUSE OF A SEALING COVER LOCATED ON TRANSMISSION. \*RM - [SIB\-24\-01\-10](/bulletins/10037934.md), 2011-06-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: THE EMERGENCY PARK RELEASE CABLE HAS BEEN REMOVED IN THESE MODELS AND THERE IS A PROCEDURE TO DISENGAGE THE PARK LOCK. 2011 E70/E71. UPDATED ON 06/08/2011. \*KB UPDATED ON 06/21/2011. \*RM - [SIB\-24\-02\-10](/bulletins/10037071.md), 2011-05-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. THE TRANSMISSION WARNING LIGHT IS ON AND THE VEHICLE WILL NOT MOVE FORWARD OR BACKWARDS. ENGINE SPEED ONLY INCREASES WHILE IN NEUTRAL OR PARK. \*RM UPDATED ON 5/1/2012. \*KB - [SIB\-24\-01\-08](/bulletins/10035010.md), 2011-02-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW VEHICLE: TRANSMISSION WARNING LIGHT IS ILLUMINATED AND THE TRANSMISSION ENTERS FAILSAFE MODE. FAULT CODE 4F81 \(RATIO MONITORING, CLUTCH A\), IN SOME CASES COMBINED WITH THE SUBSEQUENT FAULTS 507B/507C \(PARKING GEAR SENSOR IMPLAUSIBLE SIGNAL\) OR 507D \(PARKING GEAR INCORRECTLY DISENGAGED\), ARE STORED IN THE EGS CONTROL MODULE. E60, E51, E65, E66, E70, E90, E91, E92, E93. NO MODEL YEARS LISTED. \*PE JSON: [/v1/bulletins/10162396](/v1/bulletins/10162396) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20121712&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10162396&vehicle=Service%20bulletin%20121712)