# Service bulletin 16\-99\-16

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: 10120968
- Published by NHTSA: 2017\-10\-27
- Manufacturer's number: 16\-99\-16
- Manufacturer's date: 2016\-02\-29
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN

## NHTSA's summary

This bulletin announces availability of reprogramming files to optimize transmission control module \(TCM\) operation and address the following customer concerns: ? Engine RPM ?flare? \(sharp RPM increase when CVT ?downshifts?\) when using cruise control on uphill grades ? Cancellation of cruise control as a result of rpm flare \(driver must reset desired vehicle speed\). This new logic changes the cruise control system operation to avoid unexpected cancellation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10120968-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10120968-0001.pdf)

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

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2015 to 2016 SUBARU LEGACY
- 2015 to 2016 SUBARU OUTBACK

## Recalls for the same vehicles and component

- [15V794000](/recalls/nhtsa/15V794000.md), 2015-11-24: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2015555](/recalls/tc/2015555.md), 2015-11-23: Powertrain
- [15V502000](/recalls/nhtsa/15V502000.md), 2015-08-10: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2015358](/recalls/tc/2015358.md), 2015-08-06: Powertrain

## Other bulletins for the same vehicles and component

- [SubaruNet Announcement \(M](/bulletins/11037943.md), 2026-10-05, Other: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
- [18\-244\-26](/bulletins/11037938.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circuit"
- [15\-333\-25R](/bulletins/11037929.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.
- [15\-304\-22R](/bulletins/11037927.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
- [16\-156\-25R](/bulletins/11036810.md), 2026-09-03, Service bulletin: POWER TRAIN. This bulletin announces a design change made to the CVT Control Valve Body. The updated valve body incorporates an enhanced valve sleeve to improve durability. This is an revised version of the original bulletin.
- [15\-308\-23R](/bulletins/11036807.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw \(dark/standby current\) in vehicles experiencing battery drain when the ignition is off, leading to no\-start conditions or frequent jump\-starts.This is an revised version of the original bulletin.
- [15\-304\-22R](/bulletins/11036796.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. \(This is an revised version of the original bulletin.\)
- [Article Locator](/bulletins/11036794.md), 2026-09-03, Other: ELECTRICAL SYSTEM. Techtips newsletter locator index.
- [15\-333\-25R](/bulletins/11036789.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin
- [16\-156\-25R](/bulletins/11034242.md), 2026-07-01, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability. \(This is an revised version of the orignal bulletin.\)

JSON: [/v1/bulletins/10120968](/v1/bulletins/10120968)

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