 Posted 4/1/2008 9:13:20 AM
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| We started noticing abnormal rear tire wear on ten out of fifteen '07 Impala's at around 8000 miles. sent back to dealer for warranty and they realigned and replaced tires on first one. Second car they did realignment but didn't want to do tires because they had more than 7500 miles on them. Called GM Fleet Rep. who advised that they were aware of problem and that tires would be replaced under warranty. The Bulletin #PIC4689C; Premature Inside Edge Rear Tire Wear on '07/'08 Impala
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Posted 6/11/2008 8:56:27 AM
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| Have had this very same problem, the dealer replaced a bunch of tires and alignments to match the first time. Replaced more tires and alignments the second time, except add "Special Bolts" in rear suspension. Now my local dealership is replacing the 4 "Trailing Arms" and alignments on ALL of my 2007's. Time will tell if this fixes the problem.
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Posted 6/18/2008 10:27:58 AM
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GM has a warranty program that replaces some parts with the right type of bushings this does correct the problem
Bob Martinez
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Posted 3/29/2011 11:24:54 AM
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| We had the same problem, had some cars aligned while still brand new, wrote GM a letter with copy of invioce also showing how far out it was, they did re-imburse us. Some where also covered under warranty and bulletin repair. We had to keep on it to resolve. One problem I've notice is, rear camber angle is very sensitive to trunk load. A few Officers really load it up and the camber should be adjusted with that load, if it is an on going hauling of equipment.
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Posted 6/18/2011 5:47:33 PM
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| We had the same problem on our 2007 Impalas. The first incident, the dealer realigned the rear suspension and then replaced the rear tires at no charge. About a year later, the vehicles were recalled for the exact same problem. The dealer replaced the trailing arms as well as the rear tires if they had uneven wear at no charge.
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