Toyota reports that the a/c control head on some 2003-09 4Runner SUVs may flicker or dim during vehicle operation.
In some cases, the panel may actually go out altogether, only to mysteriously return a few minutes later. The Japanese carmaker attributes the trouble to the two bulbs that provide the illumination for the control head.
Installing upgraded bulbs, Part No. 90010-09017, should eliminate the annoyance.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].