Service bulletins for the 2005 Chevrolet Optra
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.
278 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 050604009 | 2005-11-30. Service bulletin. ENGINE AND ENGINE COOLING. HIGH/ROUGH IDLE, STALL. *TT |
|---|---|
| 050730020 | 2005-11-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION 4-3 SHIFT MALFUNCTION OR 4-3 HARSH DOWNSHIFT. *TT |
| 040089007 | 2005-03-11. Service bulletin. UNKNOWN OR OTHER. LOCATING RADIO, KEY AND IMMOBILIZER CODES. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.