NHTSA Complaint #10606839 — 2007 GMC ACADIA

ON HIGHWAY, TRANSMISSION WAS STUCK AND WOULD NOT SHIFT. CHECK ENGINE LIGHT TURNED ON. WAS ATTEMPTING TO MERGE ONTO BUSY HIGHWAY AND DUE TO HIGH ENGINE REVVING AND NOT SHIFTING HAD TO KEEP THE VEHICLE UNDER 45 MPH. MERGING WAS DANGEROUS AND HAD TO DRIVE UNDER VERY BUSY CONDITIONS AND LEAVE THE HIGHWAY QUICKLY. DID SO LUCKILY AND RETURNED HOME SAFELY. ONCE HOME WITH SELF-PURCHASED DIAGNOSTICS TOOL READ ERROR CODES P0017, P0716 AND P0700, SOME PERTAINING TO TIMING CHAIN STRETCH (KNOWN ISSUES ON THIS VEHICLE) AND TRANSMISSION PLATE ISSUES (ALSO KNOWN). GM HAS NEVER CONTACTED ME REGARDING THESE AND I CONSIDER THIS VEHICLE UNSAFE WITH VERY LITTLE WARNING ABOUT WHAT APPEAR TO BE 2 MANUFACTURER-KNOWN (GMC) ISSUES REGARDING TIMING CHAIN STRETCH AND FAULTY TRANSMISSIONS RIGHT AT ABOUT THE TIME POWER TRAIN WARRANTIES EXPIRE. WE ARE JUST OVER THE WARRANTY EXPIRATION OF 100,000 MILES ON POWERTRAIN AND ARE STARING AT SIGNIFICANT EXPENSE AND A CAR WE JUST DON'T TRUST ANYMORE. *TR