The following cheat codes are for Colin McRae Rally 3 on PC, PlayStation 2, and Xbox.
| UNLOCK CODES (CODE GROUP 0976) |
| Go to Options then Secrets. The following codes require a special access code: |
| All cars unlocked | MKCLLB |
| All difficulties unlocked | WSNXZU |
| All parts unlocked | FHPCNU |
| All tracks unlocked | ODIATU |
| Baja Buggy | NQFIPE |
| Battle Tank | LHZWOH |
| Hovercraft | IURUOT |
| Jet | GOBUUR |
| RC Cars (Remote Control) | WWBDBU |
| Super Focus | OQJZZY |
| UNLOCK CODES (CODE GROUP 1154) |
| Go to Options then Secrets. The following codes require a special access code: |
| All cars unlocked | WWACNU |
| All difficulties unlocked | AUNAMA |
| All parts unlocked | UZVLLB |
| All tracks unlocked | XWUDBU |
| Baja Buggy | PHOUOT |
| Battle Tank | ZIIUUR |
| Hovercraft | MHXIPE |
| Jet | LOWWOH |
| RC Cars (Remote Control) | AQVATU |
| Super Focus | UYNFVA |
| UNLOCK CODES (CODE GROUP 1432) |
| Go to Options then Secrets. The following codes require a special access code: |
| All cars unlocked | FMGUOT |
| All difficulties unlocked | UXNKFB |
| All parts unlocked | KEZIPE |
| All tracks unlocked | RVNUUR |
| Baja Buggy | VURCNU |
| Battle Tank | ZSSDBU |
| Hovercraft | NXDLLB |
| Jet | YJBATU |
| RC Cars (Remote Control) | GBPWOH |
| Super Focus | LPGXUE |
| UNLOCK CODES (CODE GROUP 1866) |
| Go to Options then Secrets. The following codes require a special access code: |
| All cars unlocked | OQJHOK |
| All parts unlocked | FHPIWQ |
| All tracks unlocked | ODIFCS |
| Battle Tank | LWXEIF |
| Hovercraft | BKQBAU |
| Jet | RUGSSH |
| RC Cars (Remote Control) | PFKCXQ |
| Super Focus | WSNBSB |
| UNLOCK CODES (CODE GROUP 2757) |
| Go to Options then Secrets. The following codes require a special access code: |
| All cars unlocked | NAWTBK |
| All parts unlocked | AUNYYI |
| All tracks unlocked | URNJYM |
| Baja Buggy | AERIWQ |
| Battle Tank | WFDUQO |
| Hovercraft | FHIAVO |
| Jet | NPDFCS |
| RC Cars (Remote Control) | IXEIVZ |
| Super Focus | XWUSDO |