REAR LIFT GATE CYLINDERS FOR THE BACK DOOR DO NOT WORK IN COLD - 50 DEGREES OR COOLER WEATHER. THEY DO NOT KEEP THE DOOR UP AND MANY TIMES THE BACK DOOR ALMOST OR DID COME CRASHING DOWN ON MY HEAD. THIS IS NOT A ONE TIME INCIDENT. THIS IS A SAFETY HAZARD WHICH COULD RESULT IN A POSSIBLE CONCUSSION, FRACTURED SKULL OR BROKEN NECK. LUCKILY THE LAST TIME SOMEONE SAW IT ALMOST CRASH ON MY HEAD WHILE UNLOADING GROCERIES THEY PICKED UP THE GATE BEFORE IT HIT MY HEAD. PRIOR INCIDENTS RESULTS IN THE DOOR HITTING MY HEAD.