Special Application Services
• Allison Transmission™ Vehicles Only: Replace external transmission filter at first engine oil change only.
• Vehicles with Dual Wheels: Check dual wheel nut torque at 160 km/100 mi, 1 600 km/ 1,000 mi and 9 700 km/6,000 mi.
• Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/ 3,000 mi.
• Have underbody flushing service performed once a year.
See also:
Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push to try the call again or try again after driving a few miles into another ce ...
Safety Locks
The rear door safety locks switch is on the instrument panel.
Rear door safety locks prevent passengers from opening the rear doors from inside
the vehicle.
Press to activate the safety locks. ...
Reducing Speed While Using Cruise Control
If the cruise control system is already activated:
• Press and hold the SET– button on the steering wheel until the lower speed desired is reached, then release it.
• To slow down in small amo ...