TORRANCE, Calif. (April 21, 2004) — Nissan Motor Corp. has extended its front-wheel alignment warranties on 2003 350Z sport coupes to two years in order to solve a “front tire roar” problem said to be caused by uneven front tire wear.
Nissan engineers determined that the tire noise is caused by chassis misalignment, specifically the toe adjustment, the company said. The auto maker issued a technical service bulletin addressing alignment to all its dealers.
Approximately 40,000 vehicle owners will receive the warranty extension on their front-wheel alignments. All 350Zs are equipped with Bridgestone Potenza RE040 tires in 17- and 18-inch sizes.
The car maker advised determining if a vehicle has excessive front tire “roar” or “growl” noise under the following conditions: when braking moderately; at speeds below 30 mph; and on smooth road surfaces. It suggested any consumer inquiries be directed to the company's consumer affairs department at (800) 343-0294.
Nissan will begin contacting vehicle owners at the end of April and is promising to make any necessary replacements of front tires with less than 21,001 miles free of charge.
But AutoWeek, a sister publication of Tire Business, reported there's bad news for 2004 350Z owners who have experienced what they believe are similar tire wear problems: Nissan does not believe the issue affects '04 Zs and said it will not offer the extended warranty coverage to the owners of those vehicles.