# Service bulletin 181000

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: 617645
- Published by NHTSA: 2001\-03\-21
- Manufacturer's number: 181000
- Manufacturer's date: 2000\-10\-18
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

ENGINEERING IS INVESTIGATING HARSH ONE\-TWO SHIFT ON THE 4L60E AUTOMATIC TRANSMISSION. THIS INVESTIGATION IS FOCUSED ON HARSH ONE\-TWO SHIFTS ON 2000 MODEL YEAR SILVERADO AND SIERRA EQUIPPED WITH 4L60E AUTOMATIC TRANSMISSION. \*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, Transmission control module

## Vehicles listed

- 2000 CHEVROLET SIERRA
- 2000 CHEVROLET SILVERADO
- 2000 GMC SIERRA
- 2000 GMC SILVERADO

## Other bulletins for the same vehicles and component

- [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.
- [PIP5346](/bulletins/10115081.md), 2017-08-15, Service bulletin: EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; POWER TRAIN. This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission may not be the same as Original equipment manufacturer quick connect verses inverted flare. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
- [PIP5340A](/bulletins/10096073.md), 2017-03-21, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT AFTER A TRANSMISSION OR TORQUE CONVERTER REPLACEMENT THE VEHICLE MAY HAVE A HARSH 1\-2 UPSHIFT AND THE CHECK ENGINE LIGHT OR SERVICE ENGINE SOON INDICATOR IS ILLUMINATED. IF YOU HAVE DUPLICATED THE CUSTOMER’S CONCERN AND FOUND DIAGNOSTIC TROUBLE CODE P0894 OR P1870 SET IN THE TRANSMISSION CONTROL MODULE PLEASE CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER.
- [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
- [3047](/bulletins/10010185.md), 2004-11-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 00\-01 4L80\-E AUTOMATIC TRANSMISSION MAY EXPERIENCE A HARSH TCC APPLY AND/OR DIAGNOSTIC TROUBLE CODE P1870 OR P074. \*TC
- [3047](/bulletins/10009392.md), 2004-09-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH TCC APPLY AND OR A DIAGNOSTIC TROUBLE CODE P1870. 4L80E AUTOMATIC TRANSMISSION. \*TT
- [030730056](/bulletins/10005566.md), 2004-03-04, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60\-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. \*TT
- [3259C](/bulletins/10005514.md), 2004-03-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 4L80E, 4L85E WHINE NOISE IN FIRST AND SECOND GEAR. \*TT
- [010730038B](/bulletins/10005162.md), 2004-02-10, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. \*TT
- [020730024A](/bulletins/634999.md), 2002-10-11, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. \*TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. \*TT

JSON: [/v1/bulletins/617645](/v1/bulletins/617645)

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