2001 INFINITI Q45 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- T Sedan 4-Door
- Base Sedan 4-Door
Engines covered
- 4.1L 4130CC V8 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 17 INCH ALLOY WHEELS, THE WHEELS MAY HAVE A CASTING DEFECT FROM WHICH CRACKS COULD PROPAGATE AS THE VEHICLE IS BEING DRIVEN.
IF A SUFFICIENT NUMBER OF CRACKS DEVELOP, THE WHEEL COULD FAIL AND SEPARATE FROM THE MOUNTING HUB, I
DEALERS WILL REPLACE THESE WHEELS. OWNER NOTIFICATION BEGAN APRIL 28, 2003. OWNERS WHO TAKE THEIR
INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WHEEL BEARING COLLISION DAMAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Showing the 8 most recent of 27 technical service bulletins on file with NHTSA.
WHEN THE CONSUMER PLACED THE VEHICLE IN THE REVERSE GEAR THE VEHICLE ACCELERATED SUDDENLY AND CAUSED AN ACCIDENT. *AK *CB *NLM
The contact owns a 1999 Infiniti Q45. While the vehicle was parked, the contact became aware that the driver's seat belt strap was shredding. The vehicle was taken to the dealer at the manufacturer's
TL* - THE CONTACT STATED THAT DURING 2006 THEY REPLACED THE ALTERNATOR IN HER 2001 INFINITI Q45. THE CONTACT IS CONCERNED BECAUSE SHE WAS INFORMED OF A RECALL IN CANADA FOR A SIMILAR FAILURE. THE CUR
VEHICLE EXPERIENCES A TOTAL ELECTRICAL SHUTDOWN. FIRST OCCASION WAS AFTER A 6 HOUR DRIVE AND SHUT DOWN IN THE PARKING LOT. VEHICLE WAS TRANSPORTED 100 MILES TO NEAREST INFINITY DEALERSHIP, ALTERNATO
CHILD SAFETY SEAT FAILURE, HARNESS ADJUSTER FAILS TO PROPERLY TIGHTEN. *BF *SC *JB
