Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2025TRAVERSE HIGH COUNTRY, FWDREPAIR AND DIAGNOSISBODY & FRAMEFIXED AND MOVEABLE WINDOWSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1735CIRCUIT/SYSTEM VERIFICATION

2025 Chevrolet Traverse High Country, FWD

Circuit/System Verification

2025 Chevrolet Traverse High Country, FWDSECTION Circuit/System Verification

NOTE:

Ambient Temperature Must Be Below 7°C (45°F) In Order To Complete The Following Verification Procedure.

Vehicle Power Mode - In Propulsion/Run Mode.
Verify The Scan Tool Parameter: Ambient Air Temperature = -40 To 88°C (-40 To 190°F) And Changes.
- If Not The Specified State
  Refer To: Outside Air Temperature Display Malfunction
- Go To Next Step: If The Specified State
Operate The Component: Rear Window Defogger Switch Through The A26 Heater And Air Conditioning User Interface Control - Front - Selected On.
Verify The Component Turns On And Off: E18 Rear Window Defogger Grid.
- If The Component Does Not Turn On And Off
  Refer To: Rear Window Defogger Malfunction
- Go To Next Step: If The Component Turns On And Off
E18 Rear Window Defogger Grid = Active & Ambient Air Temperature < 7°C (45°F).
Verify The Component Is Active: E49 Windshield Heating Grid.
- If Not The Specified State
  Refer To: Circuit/System Testing
- Go To Next Step: If The Specified State
E18 Rear Window Defogger Grid = Off.
Verify The Component Is Not Active: E49 Windshield Heating Grid.
- If Not The Specified State
  Refer To: Circuit/System Testing
- Go To Next Step: If The Specified State
A Fault Is Not Currently Present And May Be An Intermittent Condition

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.