Hummer H3. Manual — part 1741

Fig. 13: Measuring Required Wiper Arm Force
Courtesy of GENERAL MOTORS CORP.

1. Run the wiper arms to the mid-wipe position.

2. Remove the wiper blades from the wiper arms. Refer to Windshield Wiper Blade

Replacement.

3. Attach a scale to the end of the wiper arm and measure the force required to lift the wiper

arm perpendicular to the windshield to normal working height with the blade attached.

4. Replace the wiper arm if the measurement is not within the specification. Refer to

Windshield Wiper Arm Replacement.

Tip Pressure:

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Wipers and Washers - H3

Driver Side-8.1-9.5 Newtons (29-34 Ounces)

Passenger Side-5.8-7.0 Newtons (21-25 Ounces)

WIPER BLADE ELEMENT CHECK

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Wipers and Washers - H3

Fig. 14: Measuring Wiper Blade Element Centerline Contact
Courtesy of GENERAL MOTORS CORP.

1. Remove the wiper blades from the wiper arms. Refer to Windshield Wiper Blade

Replacement.

2. Look down the length of the blade element.

3. Replace the wiper blade element if the rubber element which contacts the glass is not on the

centerline of the blade +/-15 degrees. Refer to Wiper Blade Element Replacement.

4. Install the wiper blades on the wiper arms. Refer to Windshield Wiper Blade

Replacement.

REPAIR INSTRUCTIONS

REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Wipers and Washers - H3

Fig. 15: Wiper/Washer Switch Replacement - Rear
Courtesy of GENERAL MOTORS CORP.

Rear Window Wiper and Washer Switch Replacement

WINDSHIELD WASHER NOZZLE REPLACEMENT

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications.

NOTE:

Refer to Fastener Notice .

1

Instrument Panel Center Trim Panel Assembly
Refer to Instrument Panel Center Trim Panel Replacement (Left Hand
Drive) or Instrument Panel Center Trim Panel Replacement (Right
Hand Drive) .

2

Rear Wiper Washer Switch Screw (Qty: 2)

Tighten: 2 N.m (18 lb in)

3

Rear Wiper Washer Switch Assembly

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Wipers and Washers - H3