2004 Optima AH-28 Recalls, Complaints & Specs
2 safety recalls list the 2004 Optima AH-28. Check your own VIN below.
2 safety recalls for the 2004 Optima AH-28
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Fuel pump (fuel system)
On certain transit vehicles and trolleys equipped with cummins isb-02 diesel engines built with emc controlled fuel lift pumps. Erratic voltage supply to the fuel lift pump causes premature electric brush wear internal to the fuel lift pump. This premature wear could result in fuel lift pump failure and in some cases may cause an engine…
Remedy: Cummins, in conjunction with optima bus, will notify owners and repair the engines by emc recalibration and replacement of the fuel lift pump at no charge to the customer. Owners may contact cummins assistance center…
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Engine and engine cooling
On certain transit buses equipped with webasto heaters, the burner tubes are made of material that does not meet specifications and could fail prematurely.
Remedy: Webasto dealers will replace the suspected defective parts free of charge. Owners may contact optima at 316-779-7700 or webasto at 810-593-6000.
No owner complaints on file
NHTSA has no owner complaints on file for the 2004 Optima AH-28. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.
Compare Optima AH-28 model years
Recall and complaint counts for every Optima AH-28 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 1998 Optima AH-28 | 1 | 0 |
| 1999 Optima AH-28 | 1 | 0 |
| 2000 Optima AH-28 | 1 | 0 |
| 2001 Optima AH-28 | 1 | 0 |
| 2002 Optima AH-28 | 1 | 0 |
| 2003 Optima AH-28 | 1 | 0 |
| 2004 Optima AH-28 | 2 | 0 |
| 2005 Optima AH-28 | 1 | 0 |
Checking a specific 2004 Optima AH-28
How do I know if my 2004 Optima AH-28 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 2 campaigns currently list the 2004 Optima AH-28; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Optima dealer with your VIN and the NHTSA campaign number (for example 05V108000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Optima models
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.