Service bulletin SB-18-050-11

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10042853
Published by NHTSA	2012-01-19
Manufacturer's number	SB-18-050-11
Manufacturer's date	2011-11-10
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

GENERAL MOTORS: ON SOME 2012 VEHICLES, THE POWERTRAIN CONTROL MODULE (PCM) HAD BEEN SELECTIVELY ERASED AND REPROGRAMMED WITH THE NEW SOFTWARE. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

Vehicles listed
DODGE DURANGO	2012
JEEP GRAND CHEROKEE	2012

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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08-053-12	2022-07-25. Service bulletin. Flash: RHR, RHW Or RHP Radio Software Enhancements This bulletin involves upgrading the software on the RHR, RHW or RHP Radio. The customer may experience one or more of the following conditions. Erratic alternate frequency switching (International only). Bluetooth phone muting during European traffic announcement (International only). Lost channel presets, home addresses, address book entries & Travel Link favorites. Not able to change default country and state then route. Unable to load .jpeg files onto hard drive to display on touch screen. Vehicle with Start/Stop feature, the screen will go black when the engine turns off at a stop. (International only). Incomplete Travel Link temperature displayed when the temperature is over 100F. Example, if the temperature is 107F the screen will display 07. (Domestic U.S. only). Cancel key inoperative after pressing the international button. iPhone4 dial not possible after second call. Missing Travel Link buttons from SAT menu (Domestic U.S. only). Devices button disabled in VES menu. Unable to route to a recent route after a map update. Remove Travel Link disclaimer popup (Domestic U.S. only). Duplicate phone numbers in popup after pressing the international button. During active call and on hold, DIAL button should be displayed (not ?TONE? button). International button not visible. Point of interest (POI) Search enhancements. When video in remote DVD player is stopped devices button wrongly labeled as DVD. Access Travel Link immediately after radio no update when staying on TL screen. iPod, track selection enhancements.
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21-005-13	2021-03-15. Service bulletin. FLASH: MIL Illumination For P0730 - Incorrect Gear Ratio This bulletin involves updating the Transmission Control Module (TCM) software. Customers may indicate that the MIL is illuminated and/or the transmission went into limp-in. Upon further investigation, Diagnostic Trouble Code (DTC) P0730 - Incorrect Gear Ratio is either active or stored in the PCM?s memory.
18-035-14	2018-06-18. Service bulletin. Flash: Surge, Shudder or Pulsation at Highway Speeds This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.This is an optional software update that should only be used in situations where the customer is specifically complaining of the condition described below. A small number of customers may experience a surge, shudder or pulsation type sensation when driving on smooth road surfaces at highway speeds of 40-80 mph (64-129 km/h). Some customers may also describe the sensation similar to that of a fish biting on a fishing line.This is an optional software update that should only be used in situations where the customer is specifically complaining of the above condition. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this SB contains the verbiage ?REFERENCE SB 18-035-14. THIS FLASH TO BE USED ONLY FOR SHUDDER COMPLAINTS?. The other file is the standard software that does not contain improvements for this complaint. If for some reason the customer finds this shudder improvement objectionable, the PCM software may be returned/reflashed to the standard version.If the customer complains of the above condition, perform the Repair Procedure.
08-110-14	2018-06-11. Service bulletin. Flash: Unresponsive Remote Entry Transmitter Integrated Key Frequency Operated Button (FOB) This bulletin involves updating the Passive Entry Module (PEM) with new software. Customers may experience an unresponsive remote entry transmitter integrated key FOB.
08-011-13	2018-05-14. Service bulletin. Flash: Power Folding Mirrors Unfold While Cranking This bulletin involves flash reprogramming the Left and Right Front Door Modules (DMFL/DMFR) with new software. The power folding mirrors may unfold while cranking the engine.
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08-017-13	2018-02-21. Service bulletin. Flash: Vehicle Theft Alarm Intermittently Sounds This bulletin involves reprogramming the Intrusion module with new software and adding double sided tape to secure the module. The customer may experience the theft alarm siren turning on for no reason.This could be caused by the overhead console not retaining the intrusion module in place as well as it should. With the module not properly secured and with temperature changes, the wiring stiffens and relaxes moving the module. This set?s off the alarm. Reprogramming the module is to improve sensor stability that makes it less sensitive to movement. Adding tape to the module prevents movement.