Gear box problem

Tiny
PANDIYAN
  • MEMBER
  • 2005 CHEVROLET OPTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 166,000 MILES
Gear hold light is on and blinking all the time. When gear is in D gear does not shift to various speed.
Monday, March 26th, 2018 AT 8:32 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
That is the emergency mode. It can be caused by multiple issues. The only way to discover what is to use a dealer level scan tool to interrogate the transmission control unit and read what codes or faults are set. It could be as simple as a loose wire or bad sensor, or it could be internal transmission failure. The codes stored will give a map to look for the problem. (Oh, that car is actually a Daewoo Lacetti with GM badges, in case there is a Daewoo dealer nearby)
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Wednesday, March 28th, 2018 AT 9:33 PM

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