Page 79 of 388
Shifting Out of PARK (P)
(Automatic Transmission)
Your Geo has a brake-transmission shift interlock. You
have to fully apply your regular brakes before you can
shift from PARK
(P) when the ignition is in the ON
position. See “Automatic Transmission” in the Index.
If you cannot shift out of PARK. (P), ease pressure on
the shift lever
-- push the shift lever all the way into
PARK (P) and release the shift lever button as you
maintain brake application. Then press the shift lever
button and move the shift lever into the gear you wish.
If you ever hold the brake pedal down but still can’t
shift out of PARK
(P), try this:
1. Apply and hold the brake until the end of Step 6.
2. If the engine is running, shut it off. Turn the key to
ON or ACC.
3. Find the access hole cover (A) on the driver’s side of
the console, near the shift lever.
4. Remove the screw (B) and cover (A).
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Page 81 of 388

Engine Fxhauct
Engine exhaust can kill. It contains the gas
carbon monoxide
(CO), which you can’t see or
smell. It can cause unconsciousness and death.
You might have exhaust coming in if:
Your exhaust system sounds strange
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
0 Your vehicle was damaged when driving over
high points on the road or over road debris.
0 Repairs weren’t done correctly.
0 Your vehicle or exhaust system had been
If you ever suspect exhaust is coming into
your vehicle:
0 Drive it only with all the windows down to
Have your vehicle fixed immediately.
or
different.
modified improperly. blow out any
CO; and
Running Your Engine While You’re
Parked (Automatic Transmission)
It’s better not to park with the engine running. But if
ever have to, here are
some things to know.
A CAUTION:
Idling the engine with the air system control off
could allow dangerous exhaust into your vehicle
(see the earlier Caution under “Engine
Exhaust”).
Also, idling in a closed-in place can let deadly
carbon monoxide
(CO) into your vehicle even if
the fan switch is at the highest setting. One place
this can happen is
a garage. Exhaust -- with
CO -- can come in easily. NEVER park in a
garage with the engine running.
Another closed-in place can be
a blizzard. (See
“Blizzard” in the Index.)
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Page 125 of 388
Overdrive Off Light (If Equipped)
O/D OFF
This light comes on when
the automatic four-speed
transmission has been
converted to the three-speed
mode and the overdrive
is
turned off.
Daytime Running Lamps (DRL)
Indicator Light
:::O .a.
This light goes on whenever
the daytime running lamps
are on.
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Page 191 of 388
I NOTICE:
Do not tow your Geo with the rear wheels in
contact with the ground, or the transmission
could be damaged.
2.
3.
4.
Set the parking brake.
If your Geo is a four-wheel-drive vehicle, set your
manual free-wheeling hubs to
FREE or unlock your
automatic freewheeling hubs. See “Four-wheel
Drive” in the Index.
Turn the ignition key to ACC to unlock the
steering wheel.
I NOTICE:
Make sure that the towing speed does not
exceed
55 mph (90 km/h), or your Geo could be
badly damaged.
Towing from the Front
h
I1 I
I NOTICE: I
If your vehicle has automatic freewheeling hubs
or two-wheel drive,
do not tow it on all four
wheels.
If you do, your transmission could
be damaged.
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Page 192 of 388

If you have a four-wheel-drive vehicle with manual
freewheeling hubs, it can be towed from the front with
all four wheels on the ground. Follow these steps:
1. Set the parking brake.
2. Turn the ignition key to ACC to unlock the
steering wheel.
3. Shift your automatic transmission into PARK (P), or
your manual transmission to SECOND (2).
4. Shift the transfer case to NEUTRAL (N).
5. Set the hubs to FREE. See “Four-Wheel-Drive” in
the Index.
6. Release the parking brake.
Stop towing every
200 miles (300 km) and start
the engine. Leave the transfer case shift lever
in
NEUTRAL (N). Shift your automatic transmission
to
DRIVE (D); leave a manual transmission in
SECOND (2) with the clutch engaged. Run the engine at
medium speed for one minute to circulate oil in the
transfer case.
Turn the ignition key to ACC. Now you
can continue towing your Geo.
I NOTICE:
The front wheels transmit shocks during towing.
The steering column may not be strong enough to
withstand the shocks. Always unlock the steering
wheel before towing.
NOTICE:
Make sure that the towing speed does not
exceed
50 mph (80 kmh), or your Geo could be
badly damaged.
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Page 196 of 388

That’s the reason for this section. In it are many
time-tested, important trailering tips and safety rules.
Many of these are important for your safety and that of
your passengers.
So please read this section carefully
before you pull a trailer.
Load-pulling components such as the engine,
transmission, wheel assemblies and tires are forced to
work harder against the drag
of the added weight. The
engine
is required to operate at relatively higher speeds
and under greater loads, generating extra heat. What’s
more, the trailer adds considerably to wind resistance,
increasing the pulling requirements.
If You Do Decide To Pull A Trailer
If you do, here are some important points:
0 There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live but
also where
you’ll be driving. A good source for this
information can be state or provincial police.
0 Consider using a sway control. You can ask a hitch
dealer aho.ut sway controls.
0
0
0
Don’t tow a trailer at all during the first 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
Then, during the first
500 miles (800 km) that you
tow a trailer, don’t drive over
50 mph (80 km/h) and
don’t make starts at
full throttle. This helps your
engine and other parts
of your vehicle wear in at the
heavier loads.
If you have an automatic transmission, you can
use DRIVE (D) (or, as you need to, a lower gear)
when towing
a trailer. Operating your vehicle in
DRIVE (D) when towing a trailer will minimize heat
buildup and extend the life of your transmission. If
you have a manual transmission and you are towing
a trailer, it’s better not to use
FIFTH (5) gear. Just
drive in FOURTH
(4) gear (or, as you need to, a
lower gear).
Three important considerations have to do with weight:
0 the weight of the trailer,
0 the weight of the trailer tongue
0 and the weight on your vehicle’s tires.
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Page 202 of 388

’ A CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever is not fully in
PARK (P) with the
parking brake firmly set. Your vehicle can roll.
If you have left the engine running, the vehicle
can move suddenly. You or others could be
injured.
To be sure your vehicle won’t move, even
when you’re on fairly level ground, use the steps
that follow.
If you have four-wheel drive and your transfer
case
is in NEUTRAL (N), your vehicle will be free
to roll, even if your shift lever is in PARK (P). So,
be sure the transfer case is in a drive gear -- not
in
NEUTRAL (N).
When You Are Ready to Leave After
Parking
on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
0 Start your engine;
Shift into a gear; and
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling
a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transmission fluid (don’t
overfill), engine oil, axle lubricant, belts, cooling system
and brake adjustment. Each
of these is covered in this
manual, and the Index will help you find them quickly.
If you’re trailering, it’s
a good idea to review these
sections before you start your trip.
Check periodically to
see that all hitch nuts and bolts
are tight.
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Page 205 of 388
Jump Starting
If your battery has run down, you may want to use
another vehicle and some jumper cables to
start your
Geo. But please use the following steps to
do it safely.
’ A CAUTION:
Batteries can hurt you. They can be dangerous
because:
They contain acid that can burn you.
They contain gas that can explode or ignite.
They contain enough electricity to
If you don’t follow these steps exactly, some or all
of these things can hurt you.
burn
you.
NOTICE:
Ignoring these steps could result in costly damage
to your vehicle that wouldn’t be covered by
your warranty.
Trying
to start your Geo by pushing or pulling it
could damage your vehicle, even if you have a
manual transmission. And
if you have an
automatic transmission, it won’t start that way.
1. Check the other vehicle. It must have a 12-volt battery with a negative ground system.
I NOTICE:
If the other system isn’t a 12-volt system with a
negative ground, both vehicles can be damaged.
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