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Service bulletins for the 2003 Toyota 4Runner

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.

245 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
ZG7_Toyota POL172018-07-16. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. Warranty Policy Bulletin: Toyota has received reports of customer concerns where the vehicles rear hatch glass broke during defroster operation.
T-SB-0189-172018-04-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. TSB: Some 2003 ? 2009 model year 4Runner vehicles may exhibit back door glass "broken" without external impact. This condition may be associated with rear window defogger usage before glass breakage. Updated rear glass has been developed to address this condition.
T-SB-0083-13 Rev2017-08-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: The procedure in this bulletin is a general guideline on how to properly diagnose the air conditioning system after a component failure. Refer to the applicable Repair Manual for vehicle specific repair procedures and parts.
T-SB-0083-13 Rev2017-08-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: The procedure in this bulletin is a general guideline on how to properly diagnose the air conditioning system after a component failure. Refer to the applicable Repair Manual for vehicle specific repair procedures and parts.
ER10_Remail_Deal2017-08-01. Service bulletin. SEAT BELTS: REAR/OTHER:BUCKLE ASSEMBLY; EQUIPMENT; SEAT BELTS; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Letter: Safety Recall completion is important not only in satisfying government requirements but also is an integral part of our commitment to meet customer expectations of Toyota products. Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed. We request your assistance in completing the applicable campaign repairs as owners receive the Follow-Up Notice and contact your dealership. Please note the follow-up activity may cause an increase in your current campaign owner appointments. Toyota will continue with additional follow-up activities in the months to come. Please take this into consideration when analyzing your manpower requirements.
ER10_Remail_Regi2017-08-01. Service bulletin. EQUIPMENT; SEAT BELTS; EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Region Letter: Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed.
002072007-06-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC BLOWER MOTOR ICE BUILD UP. *KB
004052005-11-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. THE BLOWER MOTOR SPEED DOES NOT MATCH THE HVAC DISPLAY INDICATION. *TT
011052005-07-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. COUNTERMEASURES TO THE AIR CONDITIONER (A/C) MAGNETIC CLUTCH RELAY FOR A/C LIGHT FLASHING (INOPERATIVE A/C) ISSUES ON SOME VEHICLES EQUIPPED WITH A MAGNETIC CLUTCH COMPRESSOR. *TT
AC003032003-10-24. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC BLOWER MOTOR ICE BUILD-ICE. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.