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Service bulletin 990604036

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id608394
Published by NHTSA1999-11-26
Manufacturer's number990604036
Manufacturer's date1999-09-01
NHTSA componentVEHICLE SPEED CONTROL:LINKAGES

NHTSA's summary

SUBJECT ON VARIOUS DRIVEABILITY CONCERNS-SES OR OIL LEVEL LAMP ILLUMINATES, SPARK KNOCK, EXHAUST POPPING. *MJS

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

Throttle and cruise control

Vehicles listed
CHEVROLET C SERIES1999
CHEVROLET K SERIES1999
CHEVROLET SIERRA1999
CHEVROLET SILVERADO1999
GMC C SERIES1999
GMC K SERIES1999
GMC SIERRA1999
GMC SILVERADO1999

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
020604054A2003-04-04. Service bulletin. INCREASED ACCELERATOR PEDAL EFFORT. *TT
000604007B2001-05-17. Service bulletin. EXPERIENCING INCREASED ACCELERATOR PEDAL EFFORT. *TT
0006040072000-06-12. Service bulletin. SOME CUSTOMERS MAY COMMENT ON A HIGHER THAN EXPECTED ACCELERATOR PEDAL EFFORT FROM THE IDLE POSITION, C/K SERIES PICK UPS (SILVERADO AND SIERRA). *MJS