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Power Heated Mirrors for the 00-02 Chevy GMC Yukon: Fitment, Codes, and 2026 Rules

If you crack a mirror on a 2000-2002 Chevrolet Tahoe, Suburban, or GMC Yukon, the Power Mirrors For 00-02 Chevy GMC Yukon Heated Manual Fold Pair Side View is the direct-fit fix. Both sides offer power adjustment, heated glass, and a manual detent-spring fold. Installation is plug and play with zero programming.

The rules back you up. NHTSA confirmed in January 2026 that FMVSS 111 still requires traditional side mirrors on every passenger vehicle, with Camera Monitoring Systems allowed only as a supplement. Under 2026 state inspections, a cracked, fogged, or dead mirror is an automatic failure.

OEM cross-reference numbers

Match the pair against your originals using these interchange numbers:

• GM1321249
• 15179835
• 15062889 (also listed as SUB#15062889-PFM)
• 15062884

The driver side cross-references 15062889 and GM1321249 with flat first-surface heated glass. The passenger side cross-references 15179835 and 15062884 with convex heated glass, the wider field of view FMVSS 111 mandates on that side.

Fitment coverage

• 2000-2002 Chevrolet Tahoe and Suburban
• 2000-2002 GMC Yukon and Yukon XL (1500 & 2500)
• 2002 Cadillac Escalade, base trim (verify the connector pin count first)
• Select 1999 GMT800 early-production units with the same 7-pin door wiring

Specification comparison

The GMT800 design skips CAN-bus mirror control, LIN modules, and blind-spot LEDs. Heating is the only bus-dependent function, triggered over a Class 2 message through the rear defogger relay. The 7-pin connector handles power and heat on its own.

How the electronics work

Heater circuit

Each mirror carries a screen-printed PTC ceramic element bonded behind the first-surface glass. Nominal draw is 12V at 1.8A per mirror, with self-regulating thermal cutoff at 158°F (70°C), meeting SAE J381 surface-defrost criteria.

The BCM switches the heaters through the rear defogger relay over a Class 2 serial message (J1850 VPW). Heating engages only when the rear defogger is on and ambient temperature is below about 50°F (10°C). Current 2026 Snap-on and Autel scan tools read Class 2 data without issue.

Position sensors and memory recall

Power adjustment runs on dual DC motors, one per axis, with potentiometer feedback. Each sensor shares a 5V reference and low-reference circuit from the door module (DDM/PDM) and returns 0.5-4.5V with glass angle.

Trucks with the memory seat package (RPO AN3) use that feedback for memory recall. An out-of-range voltage sets DTC B1580 (horizontal) or B1590 (vertical), and recall stays disabled until the fault clears.

Diagnostic walkthroughs

B1590: vertical position sensor circuit

1. Test the 7-pin connector. Measure 4K-7K ohms between terminal 7 (5V reference) and terminal 10 (low reference) on the mirror side. Open or high resistance means spread or corroded female pins.
2. Check the driver door boot between the A-pillar and door, a known wire-fatigue zone. Look for insulation breach on the 5V reference (typically gray) and the signal return (light green or tan).
3. If the wiring passes, the internal potentiometer is bad. Replace the unit, sold individually or as a complete pair from Koeep.

On a 2026 scan tool the code sits under BCM → Door Module → Mirror Position Sensor. Snap-on ZEUS+, Autel MaxiSYS Ultra, and Bosch ADS 625X all display it there, with live PIDs for sensor voltage, heater status, and current draw.

B1640 and B1645: heater circuit faults

Both codes store in the DDM or PDM. Intermittent U-codes (U1000-U1300) can also block heating by corrupting Class 2 messages. Work this sequence:

1. Verify activation conditions: rear defogger on, ambient temperature below roughly 50°F (10°C), and an intact Class 2 message from the BCM.
2. Back-probe the heater supply (typically dark blue or orange at the connector) with a clamp meter. Expect 1.5-2.2A per mirror. Zero means open (B1640); over 5A means short to ground (B1645).
3. Ignition off, mirror disconnected: 6-8 ohms across the heater terminals is nominal. Infinite resistance means a failed element, so replace the mirror.
4. Swap the rear defogger relay (underhood fuse block, relay #34 on most GMT800s) with a known-good unit before condemning the mirror.

B1722: power fold circuit

B1722 (Mirror Power Fold Control Circuit Malfunction) applies only to DL3 power-fold trucks. A DL8 vehicle carries no fold circuit, and this manual-fold pair is electrically identical to the DL8 mirror. On a DL3 retrofit the DDM stores B1722 because the fold circuit reads open, while adjustment and heating keep working. Reflash the DDM to the DL8 calibration with a 2026-compatible J2534 pass-thru device and the code stays cleared.

2026 compliance and market context

FMVSS 111 sets the numbers inspectors enforce. The driver side must show a 20° rearward horizontal field of view, the passenger side a wider convex field. Both mirrors here are DOT/SAE stamped.

The market is moving toward cameras and radar. Gentex demonstrated next-gen digital rearview mirrors at CES 2026, the current Ford F-150 mirror (ML3Z-17K707-H) integrates trailer camera functions, and Toyota's TSS 3.0 mounts blind-spot radar in the mirror. Your GMT800 only asks for powered, heated glass.

Materials, certification, and service life

The UV-stabilized ABS housing is rated through SAE J2527 accelerated weathering across -40°F to +185°F and meets ISO 180 impact resistance. Glass substrate meets ANSI Z26.1 safety glazing, and the Automotive Aftermarket Suppliers Association (AASA) recognizes these standards for collision repair reimbursement.

Koeep projects a 2026-2030 service lifecycle for the pair. An estimated 4.2 million GMT800 vehicles (Silverado, Sierra, Tahoe, Suburban, Yukon, Yukon XL, Avalanche, Escalade) were still registered and running in North America as of Q1 2026.

Related GM parts and guides

If your shop also services later GM trucks, Koeep lists a Clock Spring For GMC 2015-19 Sierra 2500 3500 HD Yukon 16-19 W/O Heated 23193463 for the 2015-2019 Sierra 2500/3500 HD and 2016-2019 Yukon without a heated steering wheel.

The catalog also carries a Camshaft Position Sensor For Chevy Yukon Savana Suburban Avalanche Chevrolet GMC, so you can bundle sensors with the mirror order. Steering wear is the other common GMT800 repair, covered in our guide to a Complete Front Rack and Pinion Tie Rods Sway Bars Set for Silverado Sierra Yukon XL 1500. The full auto and motorcycle parts catalog covers the rest.

Frequently asked questions