A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust and dirt. Never use spot lifters or removers on plastic surfaces.
Many commercial cleaners and coatings that are sold to preserve and protect soft plastic surfaces may permanently change the appearance and feel of the interior and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean the vehicle's interior because they can alter the appearance by increasing the gloss in a non-uniform manner.
Some commercial products may increase gloss on the instrument panel. The increase in gloss may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions.
Chevrolet Cobalt Service & Repair Manual. Precautions
Battery Ground Cable
Prior to service, disconnect battery
ground cable and isolate as required.
Fuel System Pressure Relief
1.
Disconnect battery ground cable, isolate
as required.
2.
Install fuel pressure gauge tool N ...