Three problems related to transmission gear slipping have been reported for the 2008 Buick Enclave. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Buick Enclave based on all problems reported for the 2008 Enclave.
Transmission slippage. Expect wave plate or similar issue. Fortunately will be able to drive in for service. Contacted Buick to see if they will assist with repairs as this seems to be a common issue.
About 3 weeks prior I noticed very subtle clunk when changing gears. Than out of no were the car started slipping gears at around 40mph. The engine would rev high rpm but it wouldn't kick into 5th gear. Only did the it once. Within 1 day it slipped every time 5th gear was engaging, within 2 day of that 3rd gear was slipping every time. Brought it to aamco and was informed of a r/3/5 wave plate clutch disc TSB with this model transmission. Transmission needs a rebuilt to the tune of $2000-2500. Pathetic that a $45k vehicle cant even make to 100k miles. Who says china makes all the crap? gm must employee the chinese.
Driving down the road and the vehicle starts revving. Transmissions slips and then hoes out. Vehicle would not move.