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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 643 (CRUISE CONTROL SYSTEM)DESCRIPTION AND OPERATIONCRUISE CONTROL DESCRIPTION AND OPERATION (CONVENTIONAL CRUISE CONTROL)CRUISE CONTROL INHIBITED
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Cruise Control Inhibited

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Cruise Control Inhibited
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module (ECM) inhibits the cruise control operation when any of the following conditions exist:

  • A cruise control system DTC has been set.
  • The vehicle speed is less than 40.2 km/h (25 mph).
  • The vehicle speed is too high.
  • The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear.
  • The engine RPM is too low.
  • The engine RPM is too high.
  • The system voltage is not between 9-16 volts.
  • The antilock brake system (ABS) / traction control system (TCS) is active for more than 2 seconds.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.