See also:

Flash-to-Pass
The flash&-to&-pass feature works with the low beams or Daytime Running Lamps (DRL) on or off. To flash the high beams, pull the turn signal/lane change lever all the way toward you, then ...

When the System Does Not Seem to Work Properly
The following messages may be displayed on the DIC: SERVICE PARK ASSIST: If this message occurs, take the vehicle to your dealer to repair the system. PARK ASST BLOCKED SEE OWNERS MANUAL: This messa ...

Repair Facility
GM also recommends that you choose a collision repair facility that meets your needs before you ever need collision repairs. Your dealer may have a collision repair center with GM-trained technicians ...