Q: When it is cold,say below 40, the transmission will not shift into overdrive on 2007 Chevrolet Malibu

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
for about three miles on the highway. Is this a sign of low tranny fluid? I tried to check that but the designers of this car made that kinda hard to do.
(1) Answer
Is the engine reaching proper operating temp. before you are on the highway? Normally cars won't go into overdrive until warmed up past a specific temp. , If your thermostat is opening to soon causing an extended warm-up , that may be delaying the shift. Maybe it would also be good to have the fluid level checked, by a shop , if needed.
Didn't find what you were looking for?