Fluid and Lubricant Recommendations

Usage	Fluid/Lubricant
Engine Oil	Use only engine oil licensed to the dexos1 specfication, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended.
Engine Coolant	Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
High Voltage Battery Cooling System	Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
Power Electronics Cooling System	Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
Hydraulic Brake System	DOT 3 Hydraulic Brake Fluid (GM Part No. 88863461, in Canada 88863462).
Windshield Washer	Automotive windshield washer fluid that meets regional freeze protection requirements.
Parking Brake Cable Guides	Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Electric Drive Unit	DEXRON®-VI Automatic Transmission Fluid
Key Lock Cylinders	Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).
Hood, Hatch, and Rear Folding Seat Hinges	Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).
Weatherstrip Conditioning	Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481.