Lamp Messages
SERVICE LEFT HEADLAMP ASSEMBLY
On some models, this message will be displayed when the left headlamp is out and needs to be serviced. See “LED Lighting” in LED Lighting for more information.
SERVICE RIGHT HEADLAMP ASSEMBLY
On some models, this message will be displayed when the right headlamp is out and needs to be serviced. See “LED Lighting” in LED Lighting for more information.
TURN SIGNAL ON
This message displays and a chime sounds if a turn signal is left on for 1.2 km (3/4 of a mi). Move the turn signal/multifunction lever to the off position.
See also:
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on
a specified government test
course. For example, a tire
graded 150 ...
Power Reclining Seatbacks
To adjust a power seatback,
if equipped:
- Tilt the top of the vertical control
rearward to recline.
- Tilt the top of the vertical control
forward to raise. ...
Turn-by-Turn
This display is used for the OnStar or Navigation System Turn-by-Turn
guidance. See OnStar Overview or the navigation manual, if the vehicle has
navigation, for more information. ...






