Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Align the mode door assist spring to the HVAC module assembly case.

Install the mode door (2).

Fig 1: View Of Mode Door
Courtesy of GENERAL MOTORS CORP.
Install a new air distribution case seal.
Install the air distribution case cover (2).
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the air distributor cover retaining screws (1).
Tighten

Tighten the screws to 1.5 N.m (13 lb in).

Fig 2: Installing Air Distribution Case Cover & Retaining Screws
Courtesy of GENERAL MOTORS CORP.
Connect the mode actuator pushrod to the mode door lever.
Position the mode actuator on to the mounting slides of the HVAC module assembly.
Ensure that the lock tab locks the defroster actuator in place.
Connect the vacuum lines to the mode actuator.

Fig 3: Connecting Vacuum Lines To Mode Actuator
Courtesy of GENERAL MOTORS CORP.
Install the cross vehicle beam to the vehicle.

Fig 4: View Of Cross Vehicle Beam To Vehicle
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Install the bolts which secure the right cross vehicle beam to the hinge pillar. Tighten the bolts finger tight.

Fig 5: Locating Bolts Which Secure Right Cross Vehicle Beam To Hinge Pillar
Courtesy of GENERAL MOTORS CORP.
Install the bolts which secure the left cross vehicle beam to the hinge pillar. Tighten the bolts finger tight.
Tighten

Tighten the bolts to 20 N.m (15 lb ft).

Fig 6: View Of Bolts Which Secure Left Cross Vehicle Beam To Hinge Pillar
Courtesy of GENERAL MOTORS CORP.
Install the bolt (1) to the cross vehicle beam.
Tighten

Tighten the bolt to 20 N.m (15 lb ft).

Fig 7: Installing Bolt To Cross Vehicle Beam
Courtesy of GENERAL MOTORS CORP.
Install the bolts to the upper support brackets of the HVAC module.
Tighten

Tighten the bolts to 10 N.m (89 lb in).

Fig 8: Installing Bolts To Upper Support Brackets Of HVAC Module
Courtesy of GENERAL MOTORS CORP.
Install the center support bracket to the HVAC module.
Install the bolts to the center support bracket of the HVAC module.
Tighten

Tighten the bolts to 10 N.m (89 lb in).

Fig 9: Installing Center Support Bracket To HVAC Module
Courtesy of GENERAL MOTORS CORP.
Install the instrument panel wiring harness on to the cross vehicle beam and secure the retaining clips.
Install the two screws below the fuse block that hold the main wire harness connector to the cross vehicle beam.
Install the BCM bracket and the bolts.
Tighten

Tighten the bolts to 10 N.m (89 lb in).

Fig 10: Installing BCM Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.
Install the relay bracket and the bolts.
Tighten

Tighten the bolts to 10 N.m (89 lb in).

Fig 11: Installing Relay Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.
Install the right and left side air distribution ducts.
Install the right and left side air distribution duct bolts.
Tighten

Tighten the bolts to 1.5 N.m (13 lb in).

Fig 12: Installing Right & Left Side Air Distribution Ducts
Courtesy of GENERAL MOTORS CORP.
Install the steering column support bracket to the cross vehicle beam.
Install the nuts and bolts to the steering column support bracket.
Tighten

Tighten the nuts and bolts to 50 N.m (37 lb ft).

Fig 13: Installing Nuts & Bolts To Steering Column Support Bracket
Courtesy of GENERAL MOTORS CORP.
Install the brake pedal. Refer to BRAKE PEDAL ASSEMBLY in Disc & Drum.
Connect all disconnected ground wires.
Install the passenger side SIR inflator module. Refer to AIR BAG MODULES
Install the instrument panel trim pad. Refer to TRIM PAD REPLACEMENT -- INSTRUMENT PANEL (I/P) in Instrument Panel, Gages and Console.