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Service bulletin 4383P

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 id10021939
Published by NHTSA2007-06-27
Manufacturer's number4383P
NHTSA componentSERVICE BRAKES, ELECTRIC

NHTSA's summary

PART RESTRICTION ON THE ELECTRONIC BRAKE CONTROL MODULE. *KB

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

Vehicles listed
CADILLAC ESCALADE2007
CHEVROLET AVALANCHE 15002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2007
GMC SIERRA 15002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002007 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2007

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
PIT5120A2023-12-26. Service bulletin. Stabilitrak/Traction Control OFF With Red Brake Warning Lamp
PIT4729E2023-12-26. Service bulletin. Adding Integrated Trailer Brake Controller RPO JL1.
PIT5161B2023-12-11. Service bulletin. Bump Feel Or Clunk Noise After A Stop.
130522001B2023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
130522001A2023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
1305220012023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
PIT4729E2023-11-20. Service bulletin. Adding Integrated Trailer Brake Controller RPO JL1.
23-NA-1442023-09-15. Service bulletin. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
PIT3665L2022-11-21. Service bulletin. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
15-00-89-004E2022-10-11. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.