GM Service Manual Online
For 1990-2009 cars only

The blind spot mirror is a small convex mirror built into the upper and outer corner of both outside mirrors. It is designed to increase driver visibility and show objects that may be in the vehicle's blind zone.

Driving with the Blind Spot Mirror

The illustration represents how a vehicle appears in the blind spot mirror when a vehicle is approaching the blind zone.


Object Number: 2040394  Size: G2
  1. When the approaching vehicle is a long distance away, the image in the main mirror is small and near the inboard edge of the mirror.
  2. As the vehicle gets closer, the image in the main mirror gets larger and moves outboard.
  3. As the vehicle enters the blind zone, the image transitions from the main mirror to the blind spot mirror.
  4. When the vehicle is completely in the blind zone, the image will only appear in the blind spot mirror and is entirely off the main mirror.

Using the Outside Mirror with the Blind Spot Mirror

  1. Set the main mirror so that the side of your vehicle can just be seen and your blind spot mirror has an unobstructed view.
  2. When checking for traffic or before changing a lane, look at the main driver/passenger side mirror to observe traffic in the adjacent lane, behind your vehicle. Check the blind spot mirror for a vehicle in the blind zone. Then, glance over your shoulder to double check before moving slowly into the adjacent lane.