A complete SRX headlight replacement should begin with system identification and diagnosis, not removal. The 2010–2016 model range includes factory halogen and HID/Xenon configurations, and a bulb or connector problem may not require a complete housing.
Quick Answer
Confirm that the SRX originally has halogen headlights—not factory HID/Xenon or RPO TT6—before considering this pair. Diagnose bulb and connector faults first, especially for the listed 2010–2013 halogen low-beam condition in GM guidance. If complete housings are needed, compare both replacements before disassembly, follow exact model-year service information, and verify every function and headlamp aim afterward.
Decide Whether the Complete Housing Is the Right Repair
| Condition | Starting decision |
|---|---|
| One low beam or lighting function is out; housing is intact | Diagnose the bulb, connector, fuse, wiring, and controls first |
| Listed 2010–2013 factory-halogen low beam is dim, intermittent, or out | Follow the applicable GM bulb replacement and connector inspection guidance |
| Cracked lens/housing, broken mounts, or loose assembly | Inspect surrounding vehicle mounts; complete assembly may be appropriate |
| Persistent heavy moisture or pooled water | Inspect cracks, seals, caps, vents, and housing condition |
| Cloudy or discolored lens | Determine whether safe restoration is practical or replacement is required |
Fitment Gate Before You Remove Anything
- Vehicle: Merton-listed 2010–2016 Cadillac SRX
- Original system: Factory halogen only
- Not compatible with: Factory HID/Xenon, including RPO TT6
- Quantity: Left/driver and right/passenger pair
- Package: Merton states that bulbs are included
- OE comparison references: 22853872 and 22853873
Compare both replacements with the installed assemblies: side, shape, mounting points, connectors, projector and reflector layout, amber sections, rear housing, and labels. The listed OE references are associated with earlier applications; later-year service numbers can differ. A 2014–2016 owner should confirm the factory-halogen system and VIN-based application rather than relying on one older number.
A Safe Replacement-Planning Workflow
- Identify the system: Confirm factory halogen and rule out HID/Xenon or RPO TT6.
- Diagnose the failure: Determine whether the problem is a bulb, connector, circuit, mounting issue, or damaged housing.
- Document the original installation: Photograph panel gaps, labels, connector routing, and operating functions.
- Inspect the new pair: Check lenses, housings, mounts, connectors, sides, and included bulbs before disassembly.
- Use exact service information: Follow instructions for the specific year and equipment, or use a qualified technician.
- Complete the checks: Test every function, secure routing and mounts, check panel alignment, and verify headlamp aim.
This guide does not publish universal fastener locations, tool sizes, torque values, fascia-removal steps, or wiring transfers. The accessible official owner information does not verify a complete headlamp-assembly removal sequence for every 2010–2016 configuration.
What the Merton Pair Includes
SKU SSTHL250506505 is listed as one left and one right new plastic headlight assembly for factory-halogen SRX vehicles, with bulbs and a one-year warranty. The title references LED features, but the exact LED function requires confirmation and should not be treated as a vehicle-side compatibility shortcut.
Review the current gallery and specifications on the Merton Cadillac SRX headlight pair page. If the lighting system or later-year fitment remains uncertain, use Merton Fitment Help before ordering.
Post-Installation Checks
- Test low beams, high beams, turn signals, marker lamps, and every other fitted function on both sides.
- Confirm connectors are seated and wiring is secured away from heat, sharp edges, and moving parts.
- Verify that housings and surrounding panels are secure and aligned.
- Check for warning messages or abnormal flicker.
- Verify headlamp aim before nighttime driving.
Frequently Asked Questions
Can this pair replace factory HID/Xenon headlights?
No. Merton lists it for factory-halogen SRX vehicles only. GM identifies the HID option as RPO TT6.
Should I replace the assembly when one low beam fails?
Diagnose first. For the applicable listed 2010–2013 halogen condition, GM directs bulb replacement and connector inspection rather than automatic assembly replacement.
Does the same installation procedure apply to every 2010–2016 SRX?
Do not assume it does. Use exact model-year and equipment-specific service information or a qualified technician.
Are bulbs included?
Yes. The Merton product page states that bulbs are included. Inspect the received package before installation.
Why must headlamp aim be checked?
Correct aim supports usable road illumination without avoidable glare. Replacement or collision-related movement can change alignment.