Tires and ABS/ETS
SPARE TIREUsing the compact spare supplied with the vehicle will not affect the operation of Antilock Brake System/Enhanced Traction System (ABS/ETS). The Electronic Brake Traction Control Module (EBTCM) software can compensate for this smaller tire. However, increased stopping distances may occur due to reduced tire tread depth and contact patch on the compact spare tire.
When using the compact spare tire on the front axle the Enhanced Traction System will cycle and limit acceleration for approximately the first 15 seconds of driving after each engine start. After that time the smaller tire will not affect the operation of the ETS.
REPLACEMENT TIRES
Tire size is important for proper performance of the ABS/ETS. Replacement tires should be the same size load range and construction as the original tires. Replace tires in axle sets and only with tires of the same TPC (Tire Performance Criteria) specification number. Use of any other tire size or type may seriously affect the ABS operation. For more information on original equipment and replacement tires.