Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) system makes the low-beam headlamps come on at a reduced brightness in daylight when the following conditions are met:
○ The ignition is on.
○ The exterior lamp band is in the automatic position.
○ The transmission is not in P (Park).
○ The light sensor determines it is daytime.
○ The parking brake is released. Fully functional Daytime Running Lamps (DRL) are
required on all vehicles first sold in Canada.
When the DRL are on the taillamps, sidemarker, instrument panel lights and other lamps will not be on. The instrument panel cluster will be lit. When the exterior lamp band is turned to the headlamp position, the low-beam headlamps come on. The other lamps that come on with the headlamps will also come on. To idle your vehicle with the DRL off, move the shift lever to P (Park). The DRL will stay off until the shift lever is moved out of the P (Park) position.
The regular headlamp system should be turned on when needed.
See also:
How to Detect a Tamper Condition
If is pressed and the horn sounds,
an attempted break-in has occurred while the system was armed.
If the alarm has been activated, the THEFT ATTEMPTED message will appear on the
DIC. See Key and ...
Exterior
The Yukon has a one-piece grille and taller headlights than its sister Tahoe,
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Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed
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