2017-2019 Buick LaCrosse Main Relay Torque Specs

2.5L I4

Applies to 2017, 2018, and 2019 Buick LaCrosse

Labor Time:0.5 hours

🔧 Torque Values8 specifications

Component	lb-ft	Nm	Notes
⚠️ Battery Terminal Bolts	5	7	—
Bracket Bolts	15	20	—
Connector Screws	3	4	—
Cover Screws	8	11	—
⚠️ Ground Bolt	10	14	—
⚠️ Ground Strap Bolt	10	14	Clean contact surfaces
⚠️ Mounting Bolts	25	34	—
⚠️ Terminal Bolts	5	7	—

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

2022-2024 GT-Line Dual Motor AWD

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

The primary torque specification for main relay on a 2017-2019 Buick LaCrosse is 7 Nm (5 lb-ft).

There are 8 torque specifications for main relay on the 2017-2019 Buick LaCrosse 2.5L I4, covering all related fasteners and components.