GMC 1995 Suburban Owner's Manual page 461

At Least Once a Year
Key Lock Cylinders
Lubricate the key lock cylinders with the lubricant specified in Part D.
Body Lubrication
Lubricate all fuel door, body hood and body door hinges, rear compartment
hinges, tailgate and tailgate handle pivot points, tailgate mounted spare tire
carrier pivot points, latches, locks, and folding seat hardware. Part D tells
YOLI
what to use. More frequent lubrication may be required when exposed
to
a
corrosive environment.
Starter Switch
A
CAUTION:
When you are doing this check, the vehicle could move suddenly.
If it does, you or others could be injured. Follow the steps below.
1 . Before you start, be sure you have enough room around the vehicle.
I t
should be parked on a level surface.
2. Firmly apply both the parking brake (see "Parking Brake" in the Index
if necessary) and the regular brake.
NOTE: Do not use the accelerator pedal, and be ready to turn off the
engine immediately if it starts.
3. On automatic transmission vehicles, try to start the engine i n each gear.
The starter should work only in PARK ( P ) or NEUTRAL (N). If the
starter works i n any other position, your vehicle needs service.
On manual transmission vehicles, put the
shift
lever i n NEUTRAL
(N),
push the clutch down halfway and try to start the engine. The starter
should work only when the clutch is pushed down all the way to the
floor. If the starter works when the clutch isn't pushed all the way
down, your vehicle needs service.
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