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What might be the issue with the digital speedometer on my GMC Terrain that's causing it not to work?
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3 answers
★ Top Answer
There are several common reasons why the digital speedometer on a GMC Terrain may stop working. Typically, these issues stem from a faulty gear within the speedometer system, a malfunctioning speed sensor, a defective engine control unit (ECU), or faulty wiring. It is recommended to first check the fuses and wiring before moving on to inspect the speed sensor or ECU since the latter repairs tend to be more costly and labor-intensive. Taking your vehicle to a mechanic or dealership for diagnosis can cost between $100 and $150, depending on the complexity of the issue. If the problem turns out to be the speed sensor or ECU, repair costs can range from $300 to $500, covering both parts and labor.
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The speedometer with the illuminated dash is not currently working.
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There are several typical reasons why the digital speedometer in a GMC Terrain might stop functioning. This issue often arises from a faulty gear within the speedometer system, a malfunctioning speed sensor, or a defective engine control unit (ECU). Another possible cause of the speedometer not working properly could be faulty wiring.
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