2012 CHEVROLET SILVERADO roof rack

Black plate (21,1)Chevrolet Silverado Owner Manual - 2012
Keys, Doors, and Windows 2-21
Vent:From the closed position,
press and hold the rear of the switch
to vent the sunroof. To close the
sunroof, press and hold the front of
the switch.
Open: From the vent position,
the sunroof can be fully opened
either manually or by using the
express-open feature. To open
manually, press the rear of the
switch to the first detent and hold
until the sunroof has reached the
desired position. To open using
express-open, press the rear of the
switch to the second detent and
release. The sunroof will move to
the full open position. To stop the
sunroof partway, press the switch a
second time. Close:
From the vent, or open
position, press and hold the front of
the switch to close the sunroof.
The sunroof also has a roller
sunshade that can be used to
block the rays of the sun. The roller
sunshade can be manually operated
with the sunroof in an open or
closed position. To open the
sunshade, press and unlatch it, and
roll it back. To close, pull it forward
and latch it into the closed position.
When the sunroof is opened, an air
deflector will automatically raise.
The air deflector will retract when
the sunroof is closed.
Dirt and debris may collect on
the sunroof seal or in the track.
This could cause an issue with
sunroof operation or noise. It could
also plug the water drainage
system. Periodically open the
sunroof and remove any obstacles
or loose debris. Wipe the sunroof
seal and roof sealing area using a
clean cloth, mild soap, and water.
Do not remove grease from the
sunroof.

Black plate (22,1)Chevrolet Silverado Owner Manual - 2012
2-22 Keys, Doors, and Windows
Sunroof (Crew Cab)
A. Open or Close
B. Vent
On vehicles with a sunroof, the
sunroof only operates when the
ignition is in the ACC/ACCESSORY
or ON/RUN or the Retained
Accessory Power (RAP) is active.
SeeRetained Accessory Power
(RAP) on page 9‑32 for more
information. Vent:
From the closed position,
press the rear of the passenger side
switch (B) to vent the sunroof.
Manual-Open/Manual-Close:
To open the sunroof, press and hold
the rear of the driver side switch (A)
until the sunroof reaches the
desired position. Press and hold
the front of the driver side switch to
close it.
Express-Open/Express-Close:
To express-open the sunroof, fully
press and release the rear of the
driver side switch (B) until the
sunroof reaches the desired
position. To express-close the
sunroof, fully press and release
the front of the driver side switch.
Press the switch again to stop it.
When the sunroof is opened, an air
deflector will automatically raise.
The air deflector will retract when
the sunroof is closed.
The sunroof also has a sunshade
which can be pulled forward to block
sun rays. The sunshade must be
opened and closed manually. If an object is in the path of the
sunroof while it is closing, the
anti-pinch feature will detect the
object and stop the sunroof.Dirt and debris may collect on
the sunroof seal or in the track.
This could cause an issue with
sunroof operation or noise. It could
also plug the water drainage
system. Periodically open the
sunroof and remove any obstacles
or loose debris. Wipe the sunroof
seal and roof sealing area using a
clean cloth, mild soap, and water.
Do not remove grease from the
sunroof.

Black plate (5,1)Chevrolet Silverado Owner Manual - 2012
Service and Maintenance 11-5
.Check automatic transmission
shift lock control function.
SeeAutomatic Transmission
Shift Lock Control Function
Check on page 10‑37.
.Check ignition transmission lock.
See Ignition Transmission Lock
Check on page 10‑38.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake
and P (Park) Mechanism Check
on page 10‑38.
.Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.Inspect sunroof track and seal,
if equipped. See Sunroof
(Extended Cab) on page 2‑20
or Sunroof (Crew Cab) on
page 2‑22.
.Check hybrid low pressure
coolant level, if equipped.