2009 Pontiac G6 Live Canada 104000 Km Speedometer Reads Well Below Speed M

2009 PONTIAC G6
60,000 MILES
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ANONYMOUS
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  • 1 POST
i live in Canada and its 104000 km, My speedometer reads well below the speed I`m going , when the rpm is at 2 I should be going 100km p h but the speedometer reads that P`m only going 80 km? It happened twice now. What could this be?
Nov 25, 2012 at 4:16 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
have you changed tire size or gear ratios? have a dealer run a scan with a tech 2 it may need to be reprogrammed.
Nov 25, 2012 at 4:19 PM
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