Brake pedal may feel hard during cold start at high altitude on Honda Civic

On some models with automatic transmissions, during a cold start at high altitude the brake pedal feels hard. Replacing the power brake booster and updating Powertrain Control Module (PCM) the with a Honda software update is needed for this issue.

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Average mileage: (–)
5 model years affected: 2006, 2007, 2008, 2009, more2010
6 people reported this problem
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