There are 1 owner-reported powertrain & transmission complaints for the 2004 GMC Savanain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE VEHICLE IS OUT OF WARRANTY. HOWEVER, IT ONLY HAS 63K PLUS MILES ON THE ODOMETER. THE TRANSMISSION SUDDENLY BECAME ERRATIC. IT WOULD NOT SHIFT TO "D", BUT THE SECOND AND THE FIRST GEAR WORKS FINE. WE WERE TOLD BY GMC CUSTOMER SERVICE TO HAVE IT INSPECTED AND HAVE IT DIAGNOSED BY A GMC DEALER TO FIND OUT THE EXACT CAUSE OF THE PROBLEM. THE RESULTS INDICATED NO PROBLEMS WERE DETECTED OR NO CODES WERE SHOWING UP ON THEIR COMPUTER, GMC THEN TOLD US THAT IT NEEDS A NEW TRANSMISSION. WE COULD NOT AFFORD A NEWLY REBUILT TRANSMISSION.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026