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You want a mirror that bolts on and works. The listings get in the way. The heated LH/RH mirror, Accord 10th generation 2018-2022 carries Heating in its title while its feature table marks the Heated row as Non-heated.

The driver-side 2018 Accord mirror, power + turn signal + BSM, 8-pin shows the same mismatch. So do not buy on title. Run five checks and order what they describe.

The ten-minute check before you order

Each check takes a minute or two, no scan tool. Write the results in one line: pins, heat, BSM, fold, tilt. That line beats any title.

1. Count the pins. Unplug the harness at the door and count the cavities on the mirror's plug. Each pin is one circuit, and an 8-pin harness will not drive an 18-pin mirror's full feature set. Both counts circulate across these years.
2. Test heat with one button. Turn the power mode ON and press the rear-defogger button. That switch also heats the mirrors. Warm glass after 2-3 minutes means a live element; cold glass means no heat wiring.
3. Look for the blind-spot lamp. It sits inside the mirror glass, fed by radar in the rear bumper. A lamp means blind-spot monitoring is fitted (BSI in Honda books, BSM in listings). Then buy a BSM-type unit.
4. Press the fold button. Mirrors that tuck at a press or on lock mean a folding car. An 8-pin non-folding replacement bolts on and never folds again.
5. Watch Reverse. Select the passenger mirror and shift into Reverse. A dipping glass confirms reverse tilt-down (it angles to show the curb). Still glass means the plain assembly.

Heated or not: one button answers it

Heated mirrors here have no button of their own. Honda wires them into the rear-defogger circuit, which runs only in ON mode and times itself off. The manual's asterisk marks the trims without heating.

The split behind that asterisk is short:

• EX and above — EX, EX-L, Touring, 2.0T variants, hybrids — carry heated mirrors as standard from the 2018 launch.
• LX and base 1.5T Sport do without; the 2021 refresh kept the split.

If your glass warmed, buy a heated-specified unit and keep the order reference until it tests warm. Start with the 2018-2022 Accord heated-mirror listing or the driver-side 8-pin power-and-signal mirror.

If it stayed cold, the smooth 8-pin assemblies are the honest match. The driver-side 2018-2022 unit in smooth black and its passenger-side twin cost less than a feature your harness never powers.

The Honda numbers this generation resolves to

Dealer catalogs resolve this generation to two assemblies. Each supersedes an earlier -A41 suffix.

Note the side coding: right-hand parts sit in the 76208 series, left-hand in the 76258. The left is described with reverse tilt-down, the right without. That behavior is baked into the part.

List prices — $522.07 right, $482.80 left — explain the deep aftermarket. A same-connector, same-features replacement costs a fraction of the genuine part. That is the trade the exterior parts collection is built around.

BSM on the glass, radar in the bumper

Swapping the mirror does not touch the radar. Detection lives in radar sensors in the rear bumper. The mirror only shows the verdict: a lamp that lights beside a vehicle and blinks with the signal.

It is standard from EX upward on the 2018 Accord, the same split as heated glass. A non-BSM mirror on a BSI car adjusts, warms, signals — then never warns. So buy BSM-type whenever check three found a lamp.

Calibration belongs to bumper-side work, not a mirror swap. The ADAS calibration guide covers that job, the which ADAS features are worth the investment comparison adds context, and the advanced driver assistance collection groups the hardware.

Swapping the assembly on the 2018-2022 Accord

No door-panel removal needed, and the sequence is the same on both sides, 2018-2022.

1. Open the access cover. Pry the triangular trim at the front-top of the door. It clips out and exposes three bolts plus the connector.
2. Disconnect before you unbolt. Unplug the mirror connector first, vehicle powered off, so no pin is live.
3. Remove the three bolts and lift the assembly out toward the door front, feeding the harness through the grommet. The grommet is the water seal — note its orientation.
4. Transfer the dressing parts. Move the signal lens and trim across if the new unit lacks them. Compare the connectors side by side — the last cheap moment to catch a pin surprise.
5. Reinstall in reverse: grommet square, bolts snug, connector clicked home, cover clipped back.
6. Test every circuit before closing up. Joystick both axes, defogger for heat, signal, fold if fitted, Reverse for tilt, and a slow pass of parked cars for the BSI lamp. Anything missing is a connector question, fixable with the door open.

Budget forty-five minutes for the first side and half that for the second. No programming or battery disconnection required.

Match the listings to your five-line checklist

Your results sort the family cleanly. The LH/RH heated mirror listing, 2018-2022 Accord is the entry point, and the defogger test settles its Heated row.

• The 8-pin BSM pair with turn signal covers both sides in one order for the 8-pin car that passed the test.
• Single-side halves split by connector: driver side, 8-pin, power and turn signal with BSM and passenger side, 18-pin, power and heat with BSM.
• Five lines reading 8-pin with cold glass point to the smooth-black picks: the driver side and the passenger side.
• The same logic carries to the 2017-2022 CR-V: the left-side heated, blind-spot, paintable mirror and its right-side twin.

The test-first habit travels. The 1994-1997 Accord front passenger window regulator guide runs the same playbook two decades earlier.

The 2008-2012 Accord engine mount and P0300 guide covers the middle years. The tow-mirror guide for the 2007-2013 Silverado and Sierra works power, heat, and signal on a GM door.

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