# Service bulletin 18NA297

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: 10166649
- Published by NHTSA: 2019\-10\-28
- Manufacturer's number: 18NA297
- Manufacturer's date: 2019\-09\-13
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of message displaying shift to park when in park.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166649-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166649-9999.pdf)

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

## Components

Transmission and driveline, Automatic transmission

## Vehicles listed

- 2016 to 2018 CHEVROLET MALIBU
- 2018 CHEVROLET TRAVERSE
- 2016 to 2018 CHEVROLET VOLT
- 2017 to 2018 GMC ACADIA

## Recalls for the same vehicles and component

- [20V668000](/recalls/nhtsa/20V668000.md), 2020-10-29: POWER TRAIN:AUTOMATIC TRANSMISSION
- [16V502000](/recalls/nhtsa/16V502000.md), 2016-07-05: ELECTRICAL SYSTEM:IGNITION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [17\-NA\-066](/bulletins/10239647.md), 2023-07-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
- [PIP5621C](/bulletins/10224285.md), 2022-10-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
- [22\-NA\-107](/bulletins/10213253.md), 2022-06-04, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. This service bulletin provides repair information to correct a customer concern of a Service AWD Message in DIC at Ignition On with DTC C056D Set.
- [18NA358](/bulletins/10212553.md), 2022-05-31, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\). This service bulletin provides a procedure to replace the upper and lower valve body housings to correct customer concerns of launch shudder, 2\-3 Upshift or 3\-2 Downshift concerns.
- [N202307990 launc](/bulletins/10207742.md), 2022-02-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM. Customer Satisfaction Program. Certain vehicles may have a condition related to the high voltage battery which could gradually lose the ability to maintain voltage. If battery concerns are not addressed, the vehicle could enter a reduced propulsion mode while driving, or lose propulsion, or it may not start. Dealers are to update the Hybrid Powertrain Control Module \(HPCM2\). This software update is intended to increase the amount of warning time provided.
- [PIC6448](/bulletins/10204461.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates That Techline connect is Not supporting the progaming of the T6 PIM / HPCM. and advies them to call Techline.
- [06\-00\-89\-031D](/bulletins/10201098.md), 2021-09-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- [990420002L](/bulletins/10200154.md), 2021-08-09, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
- [06\-00\-89\-031D](/bulletins/10190503.md), 2021-04-20, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- [17\-NA\-317](/bulletins/10190246.md), 2021-04-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Transmission Shudder, Low Idle, Stalling after Auto Start , Reduced Engine Power Displayed on Driver Information Center \(DIC\), Malfunction Indicator Lamp \(MIL\) Illuminated \- DTCs P034B, P0506, P0011, P0014, P0021 and/or P0024 Set Some customers may comment on the following conditions: • MIL is illuminated • Transmission shudder • Low idle • Stall after auto start • Reduced Engine Power displayed on DIC The technician may find one or more of the following DTCs set: • P034B • P0506 • P0011 • P0014 • P0021 • P0024 Cause This condition may be caused by the Crankshaft Position Sensor \(CPS\) circuit picking up EMI interference from unrelated control circuit in the same harness. Correction Replace the crank sensor portion of engine harness with a twisted pair jumper harness between the crank sensor and ECM connector.

JSON: [/v1/bulletins/10166649](/v1/bulletins/10166649)

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