# Service bulletin 030730001

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: 10000943
- Published by NHTSA: 2003\-04\-05
- Manufacturer's number: 030730001
- Manufacturer's date: 2005\-03\-01
- Replaces: 030730001A
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION

## NHTSA's summary

TRANSMISSION SLIPPING OR TORQUE CONVERTER CLUTCH \(TCC\) INOPERATIVE WITH NO SERVICE ENGINE SOON \(SES\) LIGHT DISPLAYED AND NO DIAGNOSTIC TROUBLE CODE \(DTC\) P1870. \*TT UPDATE. \*TT

## 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

Transmission and driveline, Automatic transmission

## Trouble codes named

P1870

## Vehicles listed

- 2003 CHEVROLET TRAILBLAZER
- 2003 GMC ENVOY
- 2003 OLDSMOBILE BRAVADA

## Recalls for the same vehicles and component

- [03V075000](/recalls/nhtsa/03V075000.md), 2003-03-06: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [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
- [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
- [PIP3366C](/bulletins/10143757.md), 2018-08-20, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low \(4LO\) range. Dealers technician\&\#39;s are advised this condition should be deemed a normal characteristic of 4WD low operation.
- [02\-07\-30\-052J](/bulletins/10113664.md), 2017-08-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J\-45096 TransFlow®.
- [PIT\-4722](/bulletins/10026804.md), 2008-12-18, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000\-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. \*PE
- [3061](/bulletins/10023773.md), 2008-01-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). DTC C0327 WITH OR WITHOUT ADDITIONAL DTC'S SETTING. WITH FOUR WHEEL DRIVE \(4WD\) ONLY. \*NJ
- [3136](/bulletins/10021019.md), 2007-02-22, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION. SLIP CONDITION IN 2ND, 3RD, OR 4TH. DAMAGED 2\-4 OR 3\-4 CLUTCH. \*KB UPDATED 10/31/07. \*NJ
- [050730031](/bulletins/10018721.md), 2006-01-11, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60\-E AUTOMATIC TRANSMISSION TORQUE CONVERTER CLUTCH \(TCC\) SHUDDER, WATER IN TRANSMISSION \(REPAIR TRANSMISSION AND REPLACE TRANSMISSION FILLER TUBE, LEVEL INDICATOR AND SEAL\). \*AK
- [3516](/bulletins/10017393.md), 2005-11-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. VIBRATION FELT AND HEARD AT LOW RPM DURING PARKING LOT MANEUVERS. \*TT
- [11202003](/bulletins/10013261.md), 2005-04-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE NOISE UNDERNEATH THE VEHICLE OR AN AUTOMATIC TRANSMISSION FLUID LEAK. \*EH

JSON: [/v1/bulletins/10000943](/v1/bulletins/10000943)

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