Turn and Lane-Change Signals
An arrow on the instrument panel cluster will flash in the direction of the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow starts to flash to signal a lane change. Hold it there until the lane change is complete. If the lever is briefly pressed and released, the turn signal flashes three times.
The lever returns to its starting position when it is released.
If after signaling a turn or a lane change the arrows flash rapidly or do not come on, a signal bulb may be burned out.
Have the bulbs replaced. If the bulb is not burned out, check the fuse; see Fuses on page 10‑38 for more information.
See also:
Exterior
GM says the Yukon Hybrid's exterior changes are intended to make the SUV more
aerodynamic compared with the gas-powered Yukon.
A modified bumper drops the regular Yukon's fog lights for some chunk ...
Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody.
Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...
Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail GMC, the letter should be addressed to:
United States
GMC Customer Assistance ...