The service and repair manual for the 2003 Buick Century — the 3.1L V6 engine, 1 trim. Matched to this exact model year, so the specifications and sequences are the ones Buick published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2003 |
|---|---|
| Engines | 3.1L V6 — OHV |
| Trims | Custom Sedan 4-Door |
| Federal record | 1 recall · 170 complaints · 199 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2003 Century manual
03 / ContentsSections in the manual
- Quick Lookups 388
- Engine Performance 2,359
- Accessories & Equipment 2,945
- General Information 2,060
- Body & Frame 1,528
- Heating, Ventilation & A/C (HVAC) 391
- Brakes 598
- Restraints 539
- Drivelines & Axles 515
- Steering 207
- Electrical 1,423
- Suspension 183
- Engine Mechanical 486
- Transmission 609
- High Side 195
- Low Side 42
04 / Known issuesRecalls on federal record for the 2003 Century
- Steering · 09E005000A broken steering knuckle could result in loss of steering control and a possible crash without warn.
Owners have filed 170 complaints and Buick has issued 199 technical service bulletins for the 2003 Century. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2003 Century manual
Is this manual specific to the 2003 Century?
Yes. It is the OEM manual matched to the 2003 model year, covering the 3.1L V6 across the Custom Sedan 4-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 2003 Century problems does it help with?
1 recall is on federal record for the 2003 Century, covering steering. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Buick dealers.
Does it include 2003 Century wiring diagrams?
Yes — the complete wiring diagrams for the 2003 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther Century years and 2003 Buick models
2005 Century · 2004 Century · 2002 Century · 2001 Century · 2000 Century · 1999 Century · 1998 Century · 1997 Century · all 24 years
2003 Buick LeSabre · 2003 Buick Park Avenue · 2003 Buick Regal · 2003 Buick Rendezvous · every 2003 model