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GM 25778641
Turn Signal Switch

2008-2024 GM

Customer Questions & Expert Answers (3)
GM 25778641 Turn Signal Switch
GM 25778641 Turn Signal Switch
GM 25778641 Turn Signal Switch
  • Part Description
    Switch, Headlamp/Fog Lamp/Turn Signal; Multi Purpose Switch; Combination Switch
  • Manufacturer
    General Motors
Make sure this part fits
$39.14 MSRP: $56.98
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  • 25778641 Turn Signal Switch is Ref No. 4 in the diagram below

    2010 GMC Savana 1500 Turn Signal Switch Diagram for 25778641
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 25778641

  • Vehicle Fitment

    Year Make Model Trim Engine
    2008-2014 Chevrolet Express 1500Base, LS, LT6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2008-2024 Chevrolet Express 2500Base, LS, LT4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    2008-2024 Chevrolet Express 3500Base, LS, LT4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    2008-2014 GMC Savana 1500Base, LS, LT6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2008-2024 GMC Savana 2500Base, LS, LT4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    2008-2024 GMC Savana 3500Base, LS, LT4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 25778641 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 25778641 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Turn Signal Switch on Chevrolet Express 2500? Posted by Customer
    A:
    You must deactivate the SIR system before changing the turn signal multifunction switch. Place the abrasion sleeve back onto the steering column wire harness assembly before you reinstall both trim panels while making note of the connector position. Separate the wire harness assembly from its strap before disconnecting the turn signal and multifunction switch assembly from SIR system coil connector. Pull the two connectors from the bulkhead contact base of the turn signal and multifunction switch assembly. Unscrew the two pan head tapping screws from the turn signal and multifunction switch assembly to take it out of the steering column tilt head assembly. Install the turn signal and multifunction switch assembly on top of the steering column tilt head while making sure its electrical contact touches the turn signal cancel cam. Fasten the two screws with pan heads in position then tighten them to 1 N.m (9 lb in). Push both connectors into the bulkhead connector and join the turn signal and switch assembly connector to the SIR coil connector. Bind the screws to 6 N.m (53 lb in) tension. Position the steering column wire harness assembly back into place with the ignition lock cylinder case wires and connector in the correct alignment. Last, fit the wire harness assembly back into the holder then install the top and bottom trims while activating SIR functions.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Turn Signal Switch on GMC Savana 1500? Posted by Customer
    A:
    Before replacing the turn signal multifunction switch disconnect the sir system. Take off the wheel and both trim covers first before you move on. Unplug the turn signal and multifunction switch assembly connector then unscrew and remove the 2 screws to take out that assembly from the steering column tilt head unit. Place the turn signal and multifunction switch assembly onto the steering column tilt head assembly and fasten it with both screws until they reach 3 nm torque. Reattach the electrical connection for the turn signal and multifunction switch and put back the upper and lower trim covers plus the Steering Wheel. Finally, enable the sir system.
    Posted by ChevyPartsGiant Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Turn Signal Switch 25778641 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 25778641 Turn Signal Switch is available in the market under the name GM Dimmer Switch, Headlight Switch, Turn Signal Switch, Wiper Switch. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 25778641 Turn Signal Switch fits certain Chevrolet Express 1500, Express 2500, Express 3500 models, as well as GMC Savana 2500, Savana 3500, Savana 1500 models.
The original GM component designated by manufacturer part number 25778641 maintains top performance when functioning as the Switch, Headlamp/Fog Lamp/Turn Signal; Multi Purpose Switch; Combination Switch unit. The component 25778641 is constructed from durable material and its dimensions span 10.1 x 5.5 x 5.5 inches while weighing 4.30 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Multifunction Switch; Switch, Windshield Wiper & Washer Control; Switch, Turn Signal Lamp; Switch, Headlamp Dimmer. The part 25778641 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.