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Common Problems with 2003 Infiniti Q45

Retrospectively, the 2003 Infiniti Q45 had 17 complaints, and 29% of issues had something to do with ENGINE problems.

What is the most common problem with a 2003 Infiniti Q45?

Based on car owner complaints, the most common issues with the 2003 Infiniti Q45 fall into the category of ENGINE. Below we had classified the complaints into groups by components affected.

ENGINE 5 ELECTRICAL SYSTEM 3 STEERING 3 ELECTRONIC STABILITY CONTROL 2 SEAT BELTS 1 ENGINE AND ENGINE COOLING 1 SERVICE BRAKES, ELECTRIC 1 SERVICE BRAKES 1

Worst 2003 Infiniti Q45 Problems

We have singled out the top-3 most critical reports that involved victims or injuries.

SERVICE BRAKES, ELECTRIC
2003 Infiniti Q45 October 19, 2008 Victims: 1 Mileage: 40100 miles

The brakes in this vehicle malfunctioned and by such caused a very serious accident. the dealer, nissan of the eastside in bellevue wa was supposed to...

STEERING
2003 Infiniti Q45 June 1, 2012 Mileage: 110202 miles

Bought 2003 q 45 in spring 2007, still under warranty. june 2009 at 79,000 miles the engine was replaced (under warranty). 6/30/09, 80,081 miles car p...

ELECTRONIC STABILITY CONTROL
2003 Infiniti Q45 September 22, 2010 Mileage: 111000 miles

My 2003 infiniti q45 repeatedly stalls [so far, 15+ times] and often will not restart [10+ times]. with my family and me in the car, the stalling of t...