NHTSA ID Number: 10161011
Manufacturer Communication Number: PIT3219F
Summary
This Preliminary Information communicates to technicians that the Daytime Running Lamps (DRL’s) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn’t allow the DRL’s or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL’s) or auto headlamps.
113 Affected Products
Vehicles
CADILLAC | ESCALADE | 2003-2019 |
| CHEVROLET | AVALANCHE | 2007-2013 |
| CHEVROLET | AVALANCHE 1500 | 2003-2006 |
| CHEVROLET | SILVERADO | 2017 |
| CHEVROLET | SILVERADO 1500 | 2003-2011, 2014, 2019 |
| CHEVROLET | SILVERADO 2500 | 2012, 2015-2016, 2018 |
| CHEVROLET | SILVERADO 3500 | 2013 |
| CHEVROLET | SUBURBAN | 2003-2019 |
| CHEVROLET | TAHOE | 2003-2019 |
| GMC | SIERRA | 2017 |
| GMC | SIERRA 1500 | 2006-2010, 2014-2016, 2019 |
| GMC | SIERRA 2500 | 2003-2005, 2012 |
| GMC | SIERRA 3500 | 2011, 2013, 2018 |
| GMC | YUKON | 2003-2019 |
SEOCONTENT-START
Bulletin No.: PIT3219F
Published date: 05/13/2019
Preliminary Information
PIT3219F DRLs or Auto Headlights Will Not Disable with Headlamp
Switch
Models
Brand: Model: Model Years:
VIN:
Engine: Transmissions:
from to
Cadillac Escalade 2003 – 2019 All All All All
Chevrolet Avalanche 2003 – 2013 All All All All
Chevrolet Silverado 2003 – 2019 All All All All
Chevrolet Suburban 2003 – 2019 All All All All
Chevrolet Tahoe 2003 – 2019 All All All All
GMC Sierra 2003 – 2019 All All All All
GMC Yukon 2003 – 2019 All All All All
Supersession Statement
This PI was superseded to update model years and condition. Please discard PIT3219E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
Some customer may state that the Daytime Running Lamps (DRL’s) or the auto headlamps
will not shut off when using the daytime running lamp disable switch (Which is part of the
headlamp switch). Vehicles that were built for Canada (RPO Z49) have different software
that doesn’t allow the DRL’s or Auto headlamp to be shut off. Canada law prohibits disabling
daytime running lamps (DRL’s) or auto headlamps.
Recommendations / Instructions
This is a normal operation of the vehicle and no repairs should be attempted.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIT3219F
Published date: 05/13/2019
To View or Download this Document Click Here
Bulletin No.: PIT3219E
Published date: 04/27/2018
To View or Download this Document Click Here
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