Envoy 4WD V8-53L VIN M | Cruise Control | System Information | Diagrams
Cruise Control Inhibited
The engine control module (ECM) inhibits the cruise control operation when any of the following conditions exist:
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A cruise control system related DTC has been set.
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The vehicle speed is less than 40 km/h (25 mph).
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The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear.
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The engine RPM is too low.
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The engine RPM is too high.
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The vehicle speed is too high.
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The system voltage is not between 9-16 volts.
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The antilock brake system/traction control system (TCS) is active for more than 2 seconds.