DETROIT (June 23, 2004) — General Motors Corp. is cautioning motorists that plus-sized tire and wheel packages could put them and their vehicles at risk.&Copy;
“The $3 billion business of plus-sizing the wheels on your vehicles may be in style, but it can also make your vehicle practically undrivable,” GM said. Increasing tire size by even an inch can affect a vehicle's systems and could affect safety, the company said, noting that while the standard wheel size on most full-size trucks and sport-utility vehicles is 17 inches, some customizers are upgrading tires to as large as 26 inches.
GM said motorists who plus-size their tires should ask that their vehicle's different computers and equipment also be adjusted. The car maker pointed out that some of its nameplates—GMC and Chevrolet—offer their own plus-sized tire/wheel packages that are developed specifically for their vehicles thus not compromising safety or performance “and won't adversely affect the vehicle warranty.”