2010-15 GMC Terrain Headlight Pair - 1ALHP01033

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Vehicle Fit

Part Details

  • Quantity:   Pair


  • Comes as a PAIR
    • Fits both LH (Driver Side) & RH (Passenger Side)
  • Replaces dealer part numbers: 20997470, 20997471
  • Includes lenses & housings
  • Bulbs not included
  • Direct replacements
  • Built to strict quality control standards
These headlights are great replacements and have good cost savings over headlights from the dealer.
Fit guaranteed
  • This pair of headlamps will install just as your originals do. You can use your existing hardware and wiring harnesses.
  • Save time and money with a direct fit. No trips to the hardware store or extra time trying to get the wiring to hookup.
  • 1A Auto has the most comprehensive warranty.
  • If this headlight set should fail to provide satisfactory performance you may exchange it.
  • 1A Auto Headlights are guaranteed to pass inspections in all 50 states. DOT (U.S. Dept. of Transportation) and SAE (Society of Automotive Engineers) approved.
  • Replacing discolored, scratched, dull or damaged headlights with a new pair from 1A Auto can increase your resale value by up to 10%.
  • A new pair of headlights can provide you with up to 50% more illumination than a dull, yellowed, sandblasted, broken or scratched headlight.
    • 1A Auto headlights can help you see farther at night and in poor driving conditions.
    • A new pair of headlights from 1A Auto can make you more visible to other traffic during heavy rain or wintry weather.
Direct Fit Replacement

Direct fit replacement for OEM assembly

Trouble-free Installation

Uses same wiring as original assembly.  No cutting or splicing required.

DOT and SAE Compliant

Meets federal regulations for on-road use

Item Condition: New

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

Bulb Note:

These lights do not include bulbs.  If you happen to receive a product with bulbs, the bulbs are for testing and not covered under our warranty.  Our warranty applies to the light assembly only.

  1. step : Service your headlight bulbs (0:38)
    • Remove the T20 Torx bolt behind the front bumper.
    • Twist the cover to remove it.
    • Now you can reach in and disconnect the bulbs and change them.
    • Twist the cover back into place and replace the T20 Torx bolt.
  2. step : Removing the headlight assembly (2:16)
    • Use a flat blade screwdriver to pry up the push clips in the plastic cover above the headlight assembly in the engine bay.
    • Remove the T20 bolts over the grille.
    • Remove the four fasteners in the wheel well, two T20 Torx bolts and two push clips.
    • Reach behind the inner fender and pull out the bumper cover
    • Unbolt the exposed 7 mm and 10 m bolts.
    • Lift the two tabs on the top of the headlight and pull the assembly out.
    • Disconnect the wiring harness.
  3. step : Install the new headlight assembly (4:36)
    • Transfer the bracket and bulbs from your old assembly to your new one using your T20 Torx driver.
    • Insert the headlight assembly into its mounting points and secure with the three 7 mm bolts and one 10 mm bolt.
    • Secure the bumper cover by replacing the two T20 bolts and all the push clips, as well as the two T20 bolts on the top of the grille.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

  • Sockets - Metric

  • 7mm Socket
  • 10mm Socket

  • Torx Drivers & Sockets

  • T20 Torx Driver

5.00/ 5.0
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1 Star
GMC Terrain headlights
Great deal and great product next time I will buy from them again
February 28, 2017
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Year Make Model Description
2010-2015GMC Terrain GMC Terrain Headlight Pair
Part #: 1ALHP01033

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(06:44 min)