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Service bulletin SU00503

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 id10003566
Published by NHTSA2003-10-24
Manufacturer's numberSU00503
Manufacturer's date2003-08-28
NHTSA componentSUSPENSION:FRONT

NHTSA's summary

SQUEAK NOISE FROM THE LOWER FRONT AREA OF THE VEHICLE OVER SHARP IMPACT TYPE BUMPS. *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

Suspension

Vehicles listed
TOYOTA 4 RUNNER2003

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
T-SB-0391-08 Obs2020-08-03. Service bulletin. TSB: OBSOLETE NOTICE June 23, 2020: This bulletin is now obsolete. Please see T-SB-0063-20.
30E TI 4Runner 02018-12-17. Service bulletin. Technical Instructions: NOTE: If the Suspension Clip Kit is no longer available, dealers may order and install the right and left pneumatic cylinder assemblies. Reference the parts catalog for the correct part number.
30E Dealer Packa2018-12-17. Service bulletin. Dealer Package: NOTE: If the Suspension Clip Kit is no longer available, dealers may order and install the right and left pneumatic cylinder assemblies. Reference the parts catalog for the correct part number.
001052005-09-26. Service bulletin. MALFUNCTION INDICATOR LAMP ON OR MALFUNCTION INDICATOR LAMP LIGHT FLASHING WITH DIAGNOSTIC TROUBLE CODE C1735 STORED IN MEMORY. VEHICLE HEIGHT CONTROL SYSTEM: C1735 EXHAUST SOLENOID VALVE CIRCUIT. *TT
030102004-02-24. Service bulletin. REAR AIR SUSPENSION MODIFICATION. SPECIAL SERVICE CAMPAIGN 30E. *TT