# Service bulletin TSBENG168

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: 10109865
- Published by NHTSA: 2017\-08\-02
- Manufacturer's number: TSBENG168
- Manufacturer's date: 2017\-05\-24
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

## NHTSA's summary

TSB: COMBINATION TSB/SERVICE ACTION: IDLE STABILITY \& SHIFT QUALITY IMPROVEMENT \(SA294\) \- This bulletin provides the procedure to improve the logic of the Electronic Control Unit \(ECU\) and the Transmission Control Unit \(TCU\) on some 2016MY Optima \(JFa\) vehicles, produced from September 3, 2015 through November 22, 2016, which may experience a vibration and/or hesitation when releasing the brake pedal after coming to stop, and/or a shift quality concern, such as a harsh downshift, upshift, and/or shift delay. To correct this concern, apply the improved logic to the ECU and TCU using KDS download as described in this bulletin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10109865-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10109865-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

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

## Vehicles listed

- 2016 KIA OPTIMA

## Other bulletins for the same vehicles and component

- [TSBTRA059\_R4](/bulletins/10136505.md), 2018-05-14, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. TSB \- HCU/TCU UPGRADE ? FOR 100MESH SOLENOID \- EQUIPPED HYBRID TRANSMISSIONS \- This bulletin has been revised to include additional information. This bulletin provides information related to a software upgrade of the Hybrid Control Unit \(HCU\) and the Transmission Control Unit \(TCU\) of some 2011\-2016MY Optima Hybrid \(TF HEV\) after replacement of the transmission with improved 100 mesh solenoids has taken place.
- [TSBTRA072A\_R2](/bulletins/10130105.md), 2018-03-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:STARTER ASSEMBLY. TSB \- SERVICE ACTION: INHIBITOR SWITCH \- REPLACEMENT \(SA317A\) \- This bulletin has been revised to include additional information. \- This bulletin provides the procedure to replace the inhibitor switch on some 2017MY Optima \(JFa\), Sorento \(UMa\), Optima Hybrid \(HEV\), Optima Plug\-in Hybrid \(PHEV\), Sportage \(QL\), Forte \(YD\), and Sedona \(YP\), and some 2016\-2017MY Optima \(JF\) vehicles, equipped with a front wheel drive 6\-speed transmission, which may experience the following concerns: ? Malfunction Indicator Lamp \(MIL\) ON with DTC P0705 \- Transmission Range Sensor \(TRS\) Circuit Malfunction \(active or history\) ? CAN\-related DTCs \(For both Hybrids: CAN DTC C2243\); ? Intermittent no crank/no start ? Erratic or harsh shifting; ? EPB and Hold lights illuminated intermittently; ? ?Key OFF? indicated after placing the selector lever into the ?P? position and depressing the Start/Stop button.Note: When this condition occurs, the ?P? position is not indicated on the instrument cluster.
- [TSBTRA069R1](/bulletins/10116122.md), 2017-08-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. TSB: COMBINATION TSB / SERVICE ACTION: SHIFT QUALITY IMPROVEMENT \(SA292A\) \- This bulletin provides the procedure to improve the logic of the Transmission Control Unit \(TCU\) on some 2016MY Optima \(JFa\) 2.0T, produced from September 11, 2015 through October 6, 2016, 2016MY Sorento \(UMa\) 2.0T, produced from October 23, 2014 through April 18, 2016, Sorento \(UMa\) 2.4L, produced from November 18, 2014 through January 19, 2016, and Sorento \(UMa\) 3.3L vehicles, produced from October 23, 2014 through April 18, 2016, which may experience a shift quality concern, such as a harsh downshift, upshift, and/or shift delay. To correct this concern, apply the improved logic to the TCU using the KDS download as described in this bulletin.
- [PS496](/bulletins/10116104.md), 2017-08-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT ADAPTIVE/MOBILITY. PITSTOP: CUSTOMER TIP: ACCELERATOR PEDAL FUNCTION/DESCRIPTION \- On all K900 \(KH\), Cadenza \(VG, YG\), and Optima \(JF, JFa, JF\-HEV, JF\-PHEV\) vehicles, the accelerator pedal features a small detent with a spring to provide increased resistance to help avoid unnecessary fuel consumption when applying full throttle. When the driver depresses the pedal beyond the resistance where the detent is felt \(above 85% WOT\), the pedal will easily reach WOT and kickdown shift will occur accordingly. For additional information, refer to the individual vehicle?s Owner?s Manual under section ?Driving Your Vehicle? ? Automatic Transmission \(Drive\).

JSON: [/v1/bulletins/10109865](/v1/bulletins/10109865)

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