AI Damage2006 Kenworth T800: common problems
Owners of the 2006 Kenworth T800 filed 4 complaints with NHTSA, most often about electrical system and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 4
What fails most often
- 1 Electrical system 75% of all complaints
- 2 Service brakes 25% of all complaints
- Electrical system: 3 complaints (75% of all).
- Service brakes: 1 complaints (25% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 3 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Tl* the contact owns a 2006 kenworth t800. The contact stated that the brakes would not function properly unless excessive pressure was applied to the brake pedal. The vehicle was taken to an independent repair shop where the technicians stated that all of the brakes were performing below specifications.
Booster cable routing and cable mounting on 2002 kenworth found to be cause of fire.
Booster cable routing and cable mounting on 2006 kenworth found to be cause of fire.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 15,521 of 36,656 model years in the NHTSA data (top 42% most complained about).
On average one model year of the T800 has 1 complaints (28 years in the data). This year has 4, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Kenworth T800?
Owner complaints to NHTSA most often mention: electrical system, service brakes. Total complaints: 4. The most frequent symptoms in complaint texts: smoke, burning smell, fire (75%).
How many service bulletins (TSB) were issued for the 2006 Kenworth T800?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2006 Kenworth T800 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2006 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.