# Service bulletin 3491

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: 10014878
- Published by NHTSA: 2005\-05\-11
- Manufacturer's number: 3491
- NHTSA component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT

## NHTSA's summary

ANTI\-LOCK BRAKING SYSTEM \(ABS\) TELLTALE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE C0550. \*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

Brakes, Anti\-lock brakes

## Trouble codes named

C0550

## Vehicles listed

- 2003 CHEVROLET EXPRESS
- 2003 CHEVROLET SILVERADO
- 2003 GMC SAVANA
- 2003 GMC SIERRA

## Other bulletins for the same vehicles and component

- [PIT3271J](/bulletins/10168960.md), 2019-12-09, Service bulletin: WHEELS; SERVICE BRAKES, AIR:ANTILOCK. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
- [PIT5178](/bulletins/10112585.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK. This Preliminary Information communication provides information to the technician that some vehicles may have an Antilock Braking System/ Traction Control System Malfunction Indicator Lamp are on or other various electrical issues. Technician should inspect the braided ground strap from the engine to the frame.
- [040525002](/bulletins/10022470.md), 2007-08-15, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ABS LIGHT ON, DTC'S C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. \(REGROUND EBCM GROUND\). \*KB
- [4080](/bulletins/10020221.md), 2006-08-19, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. ABS AND TRACTION OFF LIGHTS COMES ON INTERMITTENTLY. \*TT UPDATED 03\-01\-07. \*KB
- [050525002](/bulletins/10017322.md), 2005-11-03, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. DIAGNOSTIC INFORMATION ON ANTILOCK BRAKE SYSTEM \(ABS\) DIAGNOSTIC TROUBLE CODE\(S\) \(DTC\) C0035, C0040, C0050, C0055 AND/OR P0609. \*TT
- [3521](/bulletins/10016711.md), 2005-09-28, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ANTI\-LOCK BRAKING SYSTEM \(ABS\) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE \(DTC\) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. \*TT 1998\-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID\-SIZED TRUCKS AND UTILITIES. 1998\-2008 ALL CHEVROLET, GMC, AND CADILLAC FULL SIZED TRUCKS AND UTILITIES. \*KB UPDATED ON 09/20/07. \*NJ
- [040525005A](/bulletins/10012587.md), 2005-03-08, Service bulletin: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ANTILOCK BRAKE SYSTEM LIGHT ON SERVICE BRAKE SYSTEM MESSAGE ON DRIVER INFORMATION CENTER. \*EH UPDATED \*EH
- [10162002](/bulletins/10009486.md), 2004-10-01, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. NOISE IN THE BRAKE PEDAL AFTER THE VEHICLE COMES TO A COMPLETE STOP MOST LIKELY OCCUR AFTER A HARD NON ABS STOP ON DRY PAVEMENT. \*TT
- [040525002B](/bulletins/10008659.md), 2004-08-13, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. ANTI\-LOCK BRAKE SYSTEM \(ABS\) LIGHT ON, DIAGNOSTIC TROUBLE CODES \(DTCS\) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. \*TT UPDATE. \*TT
- [01640](/bulletins/10007171.md), 2004-06-03, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. ELECTRONIC BRAKE CONTROL MODULE PART RESTRICTION.\*MR \*MJ

JSON: [/v1/bulletins/10014878](/v1/bulletins/10014878)

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