2009 HUMMER H2 tailgate

Do not exceed the maximum allowable tongue weight
for the vehicle. Choose the shortest hitch extension that
will position the hitch ball closest to the vehicle. This
will help reduce the effect of trailer tongue weight on the
rear axle.
The spare tire carrier is behind the tailgate. If the hitch
extension is too short, the spare tire may interfere with
trailer coupling or trailer tongue jack operation on some
types of trailers.
After loading the trailer, weigh the trailer and then the
tongue, separately, to see if the weights are proper.
If they are not, adjustments might be made by moving
some items around in the trailer.
Trailering may be limited by the vehicle’s ability to
carry tongue weight. Tongue weight cannot cause the
vehicle to exceed the GVWR (Gross Vehicle Weight
Rating) or the RGAWR (Rear Gross Axle Weight
Rating). The effect of additional weight may reduce the
trailering capacity more than the total of the additional
weight.Consider the following example:
A vehicle model base weight is 5,500 lbs (2 495 kg);
2,800 lbs (1 270 kg) at the front axle and 2,700 lbs
(1 225 kg) at the rear axle. It has a GVWR of 7,200 lbs
(3 266 kg), a RGAWR of 4,000 lbs (1 814 kg) and a
GCWR (Gross Combination Weight Rating) of
14,000 lbs (6 350 kg). The trailer rating should be:
Expect tongue weight to be at least 10 percent of trailer
weight (850 lbs (386 kg)) and because the weight is
applied well behind the rear axle, the effect on the rear
axle is greater than just the weight itself, as much as
1.5 times as much. The weight at the rear axle could be
850 lbs (386 kg) X 1.5 = 1,275 lbs (578 kg). Since the
rear axle already weighs 2,700 lbs (1 225 kg), adding
1,275 lbs (578 kg) brings the total to 3,975 lbs (1 803 kg).
This is very close to, but within the limit for RGAWR as
well. The vehicle is set to trailer up to 8,500 lbs
(3 856 kg).
4-59

Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
A. Stoplamp/Taillamp
B. Turn Signal Lamp
C. Back-Up Lamp
To replace one of these bulbs:
1. Open the liftgate or tailgate. SeeLiftgate (SUV) on
page 2-13orTailgate/Spare Tire Carrier on
page 2-16.
2. If the vehicle has the taillamp guard, remove the
four retaining screws. Do not remove the plastic
retainers.3. Remove the two
screws from the rear
lamp assembly
and remove the rear
lamp assembly.
4. Turn the bulb socket counterclockwise to remove it
from the taillamp housing.
5. Pull the bulb straight out from the socket.
6. Press a new bulb into the socket, insert it into the
taillamp housing and turn the socket
counterclockwise until it is locked in place.
7. Reinstall the rear lamp assembly and tighten the
screws.
8. Reinstall the taillamp guard by lining up the guard
with the holes in vehicle. Then install and tighten
the four screws.
5-54

Remove the wheel blocks
from the tool bag. Then
lift the wheel block
as shown to lock it
into place.Removing the Spare Tire (SUT)
The spare tire is attached to the tire carrier. To remove
the spare tire:
In order to remove the spare tire, you may need
someone to assist you.
1. Open the tire carrier. SeeTailgate/Spare Tire
Carrier on page 2-16for tire carrier operation.
2. Unscrew the wing nut on the back of the tire carrier.
5-84

2. Insert the wheel wrench into the hole and turn it
counterclockwise to release it.
3. Grasp and lift the jack out of the bracket.
Removing the Spare Tire (SUV)
The spare tire is attached to the tire carrier. To remove
the spare tire:
In order to remove the spare tire, you may need
someone to assist you.
1. Open the tire carrier. SeeTailgate/Spare Tire
Carrier on page 2-16for tire carrier operation.
2. Unscrew the wing nut on the back of the tire carrier.
5-88

15. Tighten the nuts
rmly in a crisscross
sequence as shown
by turning the wheel
wrench with the wheel
wrench extender
clockwise.
16. When you install the wheel and tire, you must also
reinstall the center cap. Place the cap on the wheel
and tap it into place until it sits ush with the wheel.Storing a Flat or Spare Tire and
Tools (SUT)
Storing the Flat or Spare Tire
Use the following art and text to help you store the
spare or at tire back into its proper location when you
are done.
To store the at or spare tire on the tire carrier:
1. Close the tire carrier. SeeTailgate/Spare Tire
Carrier on page 2-16for tire carrier operation.
2. Place the at or spare tire onto the tire carrier with
the outside of the wheel facing you.
3. Reinstall the wheel nuts holding the spare or at
tire to the tire carrier. Tighten the nuts by hand.
5-95

Storing a Flat or Spare Tire and
Tools (SUV)
Storing the Flat or Spare Tire
Use the following art and text to help store the spare or
at tire back into its proper location when done
changing a tire.
To store the at or spare tire on the tire carrier:
1. Close the tire carrier. SeeTailgate/Spare Tire
Carrier on page 2-16for tire carrier operation.
2. Place the at or spare tire onto the tire carrier with
the outside of the wheel facing out.
3. Reinstall the wheel nuts holding the spare or the at
tire to the tire carrier. Tighten the nuts by hand.4. Use the wheel wrench and wheel wrench extension
to tighten the nuts rmly.
5. Try to move the tire back and forth slightly to make
sure it is secure.
5-98

Usage Fluid/Lubricant
Front Axle
Propshaft
SplineSpline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879,
in Canada 10953511) or
lubricant meeting requirements
of GM 9985830.
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Outer Tailgate
Handle Pivot
PointsMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Spare Tire
Carrier HingePTFE Filled Synthetic Grease
(GM Part No. U.S. 89022180,
in Canada 890221801) meeting
GM Specication 9986139.Usage Fluid/Lubricant
Spare Tire
Carrier LatchMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
Weatherstrip
SqueaksSynthetic Grease
with Teon, Superlube
(GM Part No. U.S. 12371287,
in Canada 10953437).
6-14

S
Safety Belt Reminders.....................................3-32
Safety Belts
Care of ....................................................5-105
How to Wear Safety Belts Properly................1-25
Lap-Shoulder Belt........................................1-34
Safety Belt Extender....................................1-39
Safety Belt Use During Pregnancy.................1-39
Safety Belts Are for Everyone.......................1-20
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Bucket Seats, Rear......................................1-13
Heated Seats............................................... 1-6
Heated Seats - Rear....................................1-10
Memory, Mirrors............................................ 1-6
Power Lumbar .............................................. 1-5
Power Reclining Seatbacks............................. 1-8
Power Seats................................................. 1-4
Split Folding Rear Seat................................1-11
Third Row Seat...........................................1-14
Securing a Child Restraint
Rear Seat Position......................................1-62
Right Front Seat Position..............................1-64
Security Light.................................................3-44
Selectable Extended Rear Ride Height...............4-52Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of
the Vehicle................................................ 5-5
California Perchlorate Materials Requirements.... 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Lamp......................................3-40
Publications Ordering Information...................7-15
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-79
Setting the Clock............................................3-73
Sheet Metal Damage.....................................5-108
Shifting Into Park............................................2-43
Shifting Out of Park........................................2-44
Side Steps.....................................................4-33
Signals, Turn and Lane-Change.......................... 3-8
Spare Tire....................................................5-101
Carrier, Tailgate...........................................2-16
Installing....................................................5-90
Removing...........................................5-82, 5-86
Storing...............................................5-95, 5-98
Specications, Capacities...............................5-117
Speedometer..................................................3-31
Split Folding Rear Seat....................................1-11
StabiliTrak
®Indicator Light...............................3-38
StabiliTrak®System.......................................... 4-6
11