2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 02-03-10-001E Date: 101101

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 02-03-10-001E Date: 101101

Tire/Wheel - Spare Tire Is Non-Matching To Other Tires

INFORMATION

Bulletin No.: 02-03-10-001E

Date: November 01, 2010

Subject: Spare Tire is a Different Size than Other Tires

Models:

2002-2011 Cadillac Escalade Models

1999-2007 Chevrolet Silverado (Classic)

2000-2011 Chevrolet Suburban, Tahoe

2002-2011 Chevrolet Avalanche

1999-2007 GMC Sierra (Classic)

2001 GMC Sierra C3

2001-2011 GMC Yukon Models

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 335

2002-2011 GMC Sierra Denali

Supercede:

This bulletin is being revised to update the model years. Please discard Corporate Bulletin Number 02-03-10-001D (Section 03 - Suspension).

This bulletin is being issued to supply additional information concerning the spare tire on the above vehicles. You or your customers may have

noticed that the spare tire has a 16-inch diameter steel wheel or 17-inch diameter aluminum wheel while the road tires have a 17-inch, 18-inch,

20-inch or 22-inch diameter aluminum wheel. Although the spare tire has a different wheel diameter and may be a different brand, the rolling

circumference is nearly identical to the road tires. The size difference will not cause a concern because the spare and the other tires will travel the

same distance in one revolution.

This combination of non-matching tires is used most often on full-size trucks. These vehicles use a road tire and wheel combination that may be too

large to conveniently fit the storage compartment space of the vehicle. The customer may not be able to easily remove the spare tire/wheel from the

storage area because of its size and/or weight. A steel spare wheel, rather than an aluminum one, may be used since the spare is stowed under the

vehicle where it is exposed to road and weather elements. A steel wheel is less likely to incur cosmetic damage while in the stowed position for

long periods of time.

Please provide this information to your customers. Also, remind your customers of the importance of following the tire maintenance schedule as

listed in their Owner Manual. Additional tire care information can be found by visiting www.gmtiresafety.com or contacting GM toll-free.