Instruments - Cruise Control Operation Characteristics
Group: TRANSAXLENumber: 02-40-018-1
Date: OCTOBER, 2002
Model: ALL
Subject
AUTOMATIC TRANSAXLE - CRUISE CONTROL OPERATION
This bulletin updates TSB # 02-40-018 to correct operational information.
DESCRIPTION:
The cruise control module for vehicles equipped with automatic transaxles is designed to prevent "busy shifting" (frequent downshifting and upshifting) when driving in hilly terrain. For this reason, the cruise control module has the following internal logic:
^ If the vehicle speed decreases more than 4 mph below the set speed, the cruise control module will:
^ Command a 4-3 downshift (5-4 downshift for XG300/350)
^ Hold 3rd gear (4th gear for XG300/350) for 20 seconds before allowing an upshift (even after cresting a hill)
NOTE:
The Santa Fe cruise control module will not command a 4-3 downshift above approximately 73 mph.
The cruise control module will disengage cruise control:
^ If vehicle speed is below 25 mph
^ If "Sports Mode" is engaged (XG300/350 only)
^ If the brake pedal is depressed
^ If the gear shift lever is moved to the "N" position while driving
^ If the vehicle speed drops 10 mph below the set speed
^ If the clutch pedal is depressed (manual transaxle only)
If a customer comments about the cruise control operation, please explain the above information to the customer.