Transmission Failure Problems of GMC Safari

1999 GMC Safari transmission failure. See gm TSB #00-07-30-002 dated 11/2000. 1st-2nd late shift, reverse, 2nd, & 4th gear caused immediate failure. All required transmission service performed by dealer on this vehicle. Root cause is the known sun gear shell failure in the gm 4l60e automatic transmission. Vehicle has 70,511 miles. Filed GMC customer complaint #1-366073225.

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1997 GMC Safari transmission failure. Sun gear shell failure caused no reverse, second or overdrive on this vehicle.

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The contact stated the transmission failed . He contacted the dealership, and had repair work done in may 2005. In September 2005 the transmission failed completely. He contacted the manufacturer, they contacted the dealership. The dealership offered to refund the money for service toward a new transmission, but this repair has not currently been made.

I own a 1999 GMC Safari that had its transmission fail at less than 50,000 miles. It failed before its first scheduled maintenance. I contacted the dealer and was told I was out of the 3/36 warranty period so I was out of luck.

Additionally, upon repair of failed powertrain transmission and after spekaing to another Safari owner who had similair faiure, it is also apparnet that the heat sensor to the transmission failed to evoke the check engine light etc. . But the failure code was stored into the onboard computer system. This potentially hazardous situation may be occurring more frequently. I do not have any way of obtaining any "failure" data so that I can run some regression analysis. But if I can just pick up the phone and call another owner who is selling the same year Safari and within 5minutes share with me the same problems. Well, just do the math! let me know what I can do. Thank you.

The transmission failed and required replacement.

Transmission failed.

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