NHTSA Complaint #10846233 — 2004 BUICK LESABRE

WITHIN THE PASSED 2 MONTHS I HAVE BEEN EXPERIENCING "HARD SHIFTS". VERY PRONOUNCED JOLT/JERK WHEN ACCELERATING AFTER A FULL STOP OR DECELERATING TO COME TO A STOP. JUST RESEARCHED ON THIS SITE AND FOUND MANY OTHER CONSUMERS WITH 2004 LESABRE'S EXPERIENCING SAME SITUATION. HAS TO DO WITH INFERIOR PRESSURE CONTROL SOLENOID AND/OR SHIFT SOLENOIDS. APPARENTLY GM HAS REFUSED TO RECALL AND REPLACE DUE TO THE COST. CAN CAUSE PREMATURE FAILURE OF TRANSMISSION AND THEY SAY THEY ARE UNDER NO OBLIGATION TO MAKE IT RIGHT!!! ALSO HAVE HAD PROBLEMS WITH SPEEDOMETER AND TACHCOMETER. MY TACH IS FROZEN AT 2 AND SPEEDOMETER STARTED GIVING FALSE READINGS ABOUT 3 YRS. AGO. DID NOT ADDRESS BECAUSE MY MECHANIC TOLD ME ITS VERY COSTLY. I HAVE TO USE MY GARMIN TO TELL ME HOW FAST I AM GOING. HAPPENED FIRST TIME IN EXTREME HEAT TRAVELING ON HIGHWAY. THEN AGAIN WHEN IT W AS RAINING. VERY UNSAFE SITUATION AND AGAIN A VERY COSTLY FIX THAT GM WILL NOT ADDRESS.