One problem related to transmission gear slipping has been reported for the 2008 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Nissan Titan based on all problems reported for the 2008 Titan.
Driving 55mph and transmission slips all of a sudden. No warning lights - nothing. Next smoke rolls out under hood - pull off road/stop. Look under vehicle and it's covered with transmission fluid. Towed to dealer for repair - said transmission is shot. $5000 to replace. Vehicle has 85,000 miles. Had transmission services last year by Nissan dealer. Hearing problem may be because of radiator. Dealer and Nissan headquarters offered no assistance whatsoever.