If No. St( m. Is Coming .' rom. Y s .Engine
1. If you have an air conditioner, turn it off.
2. Tmn~on your heater to full hot 'at the, highest fan
3. If you're in a traffic jam, -shi€t tcrNEXJTRAL (N);
_speed and 0pe.n the whdow -as necessary.
otherwise, .shift-to .the highest gear while
dl'iving -- DRTW. @> oir THIRD (3) for
autcmatic- transmis,sions.
You may decide not to lift~.the hood but to get Service
'help ri.ght away.
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Refer to the Maintenance Schedule to determine when to
replace the air filter. See “Scheduled Maintenance
Services”
in the Index.
Operating th, dnginc .Ah the air cleaner off can
cause
you or others to be burned. The air cleaner
not .only cleans the .air, it stops flame if .the, engine.
backfires.
If it isn’t there, and the engine
backfires,
you .cotild be .burned. Don? drive with
it off, and:be. careful working on the engine with
the
air cleaner off:
NOTICE:
If ‘the air -cleaner .is off, a backfire can cause a
damaging engine:f?re.
And, dirt can easily- get
into your engine, which
will damage it. Always
have the air cleaner inplace when you’re drfving.
Automatic Transmission Fluid
When to Check and Change
A good time to check your automatic transmission-fluid
level kwhen.
the. engine oil is changed.
Change
both the fluid, and filter every 15,OO.O miles
(25 -000 km) if the vehicle is mainly driven under .one-or
more .of these conditions:
0 In heavy city traffic where the outside temperature.
In hilly or mountainous terrain.
When doing .frequent trailer towing,
Us - - such as fo.und.in taxi, - 1ice:Qr de1ivery:semice.
If you do not us.e your vehicle under any of these
conditions,, change
the fluid and filter every
50,000 miles -(83 000 km).
See “Scheduled Maintenance Services” in the Index..
regularly reaches190”F
(32°C) or
higher.
How .to Check
Because this, operation can be a little difficult, you
may choose to have-this done at your GM-dealership
Service Department.
6-17
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Name
B/U LP
A/C
RAP
02-
IGN B
DRL
FOG LP
GN A
STUD #2
PAW'
LR PRK
IGN C
Usage
Back-up Lamps.
Air Conditioning
Retained Accessory
Power
Oxygen Sensor.
Column- Feed, IGN -2, 3,4
Daytime Running Lamps
Fag Lamps
Stating. and Charging EN 1
Accessory Feeds, Elec.tric Brake
J *kirigLamps
Nmt?
.HTDSEAT
-MC
RRDFOG
'HVAC
TRCHMSL
'RR
'W/W
CRANK
HAZLP
Usage
Heated Seat
Active Transfer Case
Rear
Defogger
HVAC. Syst.em
Tr~ler
Center Hi"gh-MOuit
Stoplamp
Rear 'Window Wiper
Clutch Switch,
NSBU Switch
Hazard
Laps:
HTDMIR
STOPLP
TBC
L Vehicle Center Hi-&-
Stoplamp
Heated
Mirror
stop Lamps
Truck Body Computer
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