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Transmission not shifting 2014 gmc terrain

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Old Jan 4, 2026 | 09:29 PM
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Default Transmission not shifting 2014 gmc terrain
Transmission not shifting out of first gear, speedometer reads 0 mph. 2014 GMC Terrain. Innova SD35 Diagnostic Tablet LIVE CODE Reader shows zero MPH on Transmission output shaft.
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Old Jan 4, 2026 | 11:37 PM
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Sounds like the output speed sensor has gone bad, or possibly a wiring issue.
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