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Service bulletin 01863

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 id10006616
Published by NHTSA2004-05-07
Manufacturer's number01863
Manufacturer's date2004-01-01
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE MANEUVERS. *MR

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

Steering, Power steering

Vehicles listed
AM GENERAL HUMMER2003
CADILLAC ESCALADE2003, 2004
CADILLAC ESCALADE ESV2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2003, 2004
CHEVROLET EXPRESS2003, 2004
CHEVROLET SILVERADO2003, 2004
CHEVROLET SUBURBAN2003, 2004
CHEVROLET TAHOE2003, 2004
GMC SAVANA2003, 2004
GMC SIERRA2003, 2004
GMC SIERRA DENALI2004 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2003, 2004
GMC YUKON DENALI2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2003, 2004
GMC YUKON XL DENALI2003 (the catalog's model; the bulletin names a series or trim of it)

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
05-02-32-008F2018-06-11. Service bulletin. This technical bulletin provides a procedure to replace the power steering pump and line to correct the customers concern of lack of steering assit when stopped or parking lot manuvers.
05-02-32-008F2018-05-29. Service bulletin. This technical bulletin provides a procedure to replace the power steering pump and line to correct the customers concern of lack of steering assit when stopped or parking lot manuvers.
PIT4208D2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have a power steering pump whine noise. Technician will need to flush and refill the power steering system with Lucas Power Steering Fluid with Conditioners. Technician will replace the power steering pump with the latest design if the fluid is not available.
0502320082007-09-19. Service bulletin. GEAR BOX POWER STEERING PUMP, P/S PERFORMANCE CONCERNS. *NJ UPDATED ON 6/30/2011. *KB
33862005-04-21. Service bulletin. LACK OF STEERING ASSIST OR SHUDDER DURING PARKING LOT TYPE MANEUVERS. *TT
00823A2004-07-19. Service bulletin. POWER STEERING FLUID LEAKING AT HYDRAULIC BRAKE BOOSTER. *TT