Gmc DENALI transmission problems
13 complaint narratives mention transmission terms.
Key facts
170 owner complaints analyzed
2 distinct recall campaigns
64,000 mi median reported failure mileage
Scope: 1999 to 2015 model years. Data snapshot: . 115 complaints include usable failure mileage.
Transmission and shifting evidence
13 of 170 complaints match this topic (7.6%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 899539 · 2001-11-27 (November 27, 2001)
WHILE DRIVING ABOUT 15 MPH HAD HEARD A LOUD NOISE FROM TRANSMISSION LIKE SOMEBODY HAD STRUCKED VEHICLE AND CONTINUED DRIVING, BUT WHEN GOT IN FRONT OF HOUSE ENGINE STOPPED WORKING, AND NOTICED THAT TRANSMISSION HAD BLOWNOUT. DEALER WOULD LIKE TO FIX VEHICLE, BUT CONSUMER WOULD LIKE TO HAVE MORE INFORMATION ABOUT IT. PLEASE CONSUMER PROVIDE MORE INFORMATION.*AK
Owner-reported narrative. Look up ODI 899539 at NHTSA ↗
Owner report 10140731 · 2005-10-25 (October 25, 2005)
DT: THE CONTACT STATED THE TRANSMISSION SEAL WAS DEFECTIVE AFTER A CERTAIN AMOUNT OF MILES, IT ALLOWED THE COOLING SYSTEM TO LEAK INTO THE TRANSMISSION. WHEN ACCELERATING THE TRANSMISSION WOULD DOWN SHIFT INTO FIRST GEAR, THIS WOULD MAKE THE VEHICLE JUMP. THE TRANSMISSION FAILED AT AN INTERSECTION. WHEN THIS OCCURRED THE VEHICLE HAD TO BE DRIVEN HOME AND TO THE DEALERSHIP IN FIRST GEAR. IT WAS TAKEN TO THE DEALERSHIP WHO DIAGNOSED THE PROBLEM. THE TRANSMISSION SEAL BROKE BECAUSE THE TRANSMISSION WAS DOWN SHIFTING TOO HARD. *AK UPDATED 1…
Owner-reported narrative. 64,300 miles reported. Look up ODI 10140731 at NHTSA ↗
Owner report 10003208 · 2003-01-22 (January 22, 2003)
ENGINE TAPS LOUDLY UPON STARTUP. THIS METALLIC TAPPING OCCURS AFTER OVERNIGHT PARKING AND ALSO IF SITTING FOR AN HOUR OR SO. WHEN DRIVING COLD ENGINE, VALVE CLATTER OCCURS BEFORE EACH SHIFT OF THE AUTOMATIC TRANSMISSION. EMAIL AND TELEPHONE CORRESPONDENCE WITH GM LEFT ME WITH THEIR OFFER TO PROVIDE EXTENDED WARRANTY ON ENGINE, OF WHICH I DECLINED. PART OF THEIR RESPONSE: WE APPRECIATE THE OPPORTUNITY TO REVIEW YOUR CONCERNS WITH YOUR 2002 GMC SIERRA DENALI. WE HAVE EXAMINED REQUEST NUMBER 1-60877406 IN WHICH YOUR ENGINE TAPPING NOISE IS DOCUM…
Owner-reported narrative. 2,000 miles reported. Look up ODI 10003208 at NHTSA ↗
Owner report 10162502 · 2006-07-16 (July 16, 2006)
FAILURE OF TRANSMISSION COOLER, WHICH IS INSIDE THE RADIATOR, CAUSED TRANSMISSION FLUID AND ANTI-FREEZE TO MIX AND FLOW THROUGH ENGINE AND TRANSMISSION. THE TRANSMISSION WAS RUINED AS A RESULT. THE REPAIR INVOLVED REPLACING THE RADIATOR, ALL ENGINE HOSES, REBUILDING THE TRANSMISSION, FLUSHING ENGINE AND REPLACING FLUIDS AT A TOTAL COST OF $3047. THIS VEHICLE HAS HAD EXCEPTIONAL CARE AND ALL MAINTENANCE WAS PERFORMED ON SCHEDULE. THE VEHICLE, A SUV WAS NEVER USED OFF ROAD OR TO PULL A TRAILER, AND HAS 74000 MILES. THERE WAS NO WAY TO PREVENT…
Owner-reported narrative. 74,030 miles reported. Look up ODI 10162502 at NHTSA ↗
Owner report 10168365 · 2006-09-15 (September 15, 2006)
DT*: THE CONTACT STATED WHILE DRIVING 10 MPH ON A CITY STREET, A CLUNKING SOUND WAS HEARD FOLLOWED BY THE TRANSMISSION FAILING TO SHIFT GEARS UPON ACCELERATION. THE VEHICLE WAS TOWED TO A DEALER WHO DETERMINED THE AUTOMATIC TRANSMISSION GEAR TEETH WERE FRACTURED AND WORN. THE DEALER DETERMINED THE GEAR TEETH NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED. UPDATED 10/6/2006 - THE STABILIZER BECAME WORN. *NM
Owner-reported narrative. 77,600 miles reported. Look up ODI 10168365 at NHTSA ↗