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Cadillac SRX 1st Generation (Sigma)

2004–2009 · Sigma · suv

The first-gen SRX launched for 2004 as a mid-size luxury crossover built on the rear-drive Sigma platform, shared with the CTS and STS. This generation is fundamentally a different vehicle from the 2nd-gen SRX: it is RWD-based (with optional AWD), used the 3.6L LY7 V6 or the 4.6L LH2 Northstar V8, and offered a three-row seating configuration. Magnetic Ride Control was available. Built in Lansing Grand River, Michigan. Replaced by the FWD-based Theta SRX for 2010.

Watch out: Owner reports of timing-chain wear and tensioner failure on the 3.6L LY7 V6 are well-documented. The 4.6L Northstar V8 carries the head-bolt-pull / coolant-loss reputation common to the Northstar family, though the LH2 RWD version is generally regarded as more robust than earlier FWD Northstars.

What your SRX takes

The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.

  • Wiper blades22" driver · 21" passenger✓ VerifiedView
  • Oil filterParts in catalogShop
  • Tire sizeNot catalogued yetFind yours soon
  • Engine oilNot catalogued yetFind yours soon
  • Engine air filterNot catalogued yetFind yours
  • Cabin air filterNot catalogued yetFind yours
  • Spark plugsNot catalogued yetFind yours soon
  • Headlight bulbsNot catalogued yetFind yours soon
  • BatteryNot catalogued yetFind yours soon
  • CoolantNot catalogued yetFind yours soon
  • Brake fluidNot catalogued yetFind yours soon
  • Transmission fluidNot catalogued yetFind yours soon
  • Tire pressureNot catalogued yetFind yours soon
  • Key fob batteryNot catalogued yetFind yours soon
  • Power steering fluidNot catalogued yetFind yours soon
  • Differential fluidNot catalogued yetFind yours soon
  • Serpentine beltNot catalogued yetFind yours soon
  • Brake padsNot catalogued yetFind yours soon
  • Wheel fitmentNot catalogued yetFind yours soon
  • Brake rotorsNot catalogued yetFind yours soon
  • ThermostatNot catalogued yetFind yours soon
  • A/C refrigerantNot catalogued yetFind yours soon
  • Fuel filterNot catalogued yetFind yours soon

Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.

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