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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.